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CALSCALE:GREGORIAN
UID:c261321b-db1d-4b77-b31f-9aa82aa72cba
X-WR-TIMEZONE:UTC
X-WR-CALNAME:IAS Astro-Princeton University
BEGIN:VEVENT
UID:96b47c0c-ff22-4f4a-b289-68d93ecd818d-0
DTSTAMP:20260413T074232Z
CREATED:20260127T114427Z
DESCRIPTION:Topic: General discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-computational-astrophysics-club-62
DTSTART:20260127T190000Z
DTEND:20260127T200000Z
LAST-MODIFIED:20260127T114435Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
 physics-club-62
END:VEVENT
BEGIN:VEVENT
UID:ba59510c-2239-4a45-aa30-5462ef574091-0
DTSTAMP:20260413T074232Z
CREATED:20260127T112239Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-extrasolar-planet-discussion-group-153
DTSTART:20260202T170000Z
DTEND:20260202T180000Z
LAST-MODIFIED:20260127T112259Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
 iscussion-group-153
END:VEVENT
BEGIN:VEVENT
UID:8fba8c29-ca0f-4eeb-b88d-71a56fefa145-0
DTSTAMP:20260413T074232Z
CREATED:20260122T173324Z
DESCRIPTION:Topic: Where is the Second Multi-Messenger Compact Object Merge
 r? Insight from Observations of GRBs\, Kilonovae and Afterglows\n\nSpeaker
 s: Jillian Chin Rastinejad\, University Of Maryland College Park\n\nMore: 
 https://www.ias.edu/sns/events/princeton-university-gravity-initiative-sem
 inar-11\n\nABSTRACT: With only one joint gravitational wave (GW)-electroma
 gnetic\n(EM) detection to date\, observations of the EM counterparts to ne
 utron\nstar mergers are a key path to probing the physics of these unique
 \nsystems and predicting the behavior of future EM counterparts to GW\neve
 nts. In this talk\, I will discuss the major takeaways revealed by\ndecade
 s of observations of gamma-ray bursts (GRBs)\, heavy element\ncreating-kil
 onovae and multi-wavelength afterglows. First\, I will\npresent insights f
 rom rapid follow-up of short GRBs\, which reveal the\ndiversity of kilonov
 ae uniformly observed at a pole-on angle and a\nspan in jet properties. Ag
 ainst this backdrop\, I will show our\nsurprising discovery of a kilonova 
 following a long GRB (duration ~\n50s) at 350 Mpc\, which illuminates a ne
 w avenue to detect future\nmergers. Finally\, I will show that recent incr
 eases in afterglow\ncoverage is improving our understanding of the distrib
 ution of NS\nmerger jet properties. I will discuss how we are leveraging t
 hese\narchival observations to improve our predictions for joint GW-EM\nde
 tections in the era of Cosmic Explorer and Einstein Telescope as\nwell as 
 next-generation EM observatories.
DTSTART:20260202T173000Z
DTEND:20260202T183000Z
LAST-MODIFIED:20260122T180014Z
LOCATION:Jadwin Hall\, Princeton Gravity Initiative\, 4th Floor
SUMMARY:Princeton University Gravity Initiative Seminar
URL:https://www.ias.edu/sns/events/princeton-university-gravity-initiative-
 seminar-11
END:VEVENT
BEGIN:VEVENT
UID:5929113a-3c96-42e7-a3d8-9644ef9a33c4-0
DTSTAMP:20260413T074232Z
CREATED:20260127T114441Z
DESCRIPTION:Topic: General discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-computational-astrophysics-club-63
DTSTART:20260203T190000Z
DTEND:20260203T200000Z
LAST-MODIFIED:20260127T114522Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
 physics-club-63
END:VEVENT
BEGIN:VEVENT
UID:aa01677e-fa29-4002-9678-3ecd85741d92-0
DTSTAMP:20260413T074232Z
CREATED:20260204T202918Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-astroplasmas-seminar-98
DTSTART:20260206T173000Z
DTEND:20260206T183000Z
LAST-MODIFIED:20260204T202926Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
 r-98
END:VEVENT
BEGIN:VEVENT
UID:6349387f-a56d-40f0-86bc-7ab1d23e1e2a-0
DTSTAMP:20260413T074232Z
CREATED:20260203T132035Z
DESCRIPTION:Topic: Generating Electricity from Earth’s Rotation Through Its
  Own Magnetic Field\n\nSpeakers: Christopher F. Chyba\, Princeton Universi
 ty\n\nMore: https://www.ias.edu/sns/events/princeton-university-mae-event
 \n\nIn 2016 we showed theoretically that it should be possible to produce
 \nsmall amounts of electrical power from Earth’s rotation through its\nown
  magnetic field using a device with two unusual properties: a\ntopology th
 at satisfies a certain mathematical condition\; and a\ncomposition that fa
 vors magnetic diffusion. In 2025 we published\nexperimental results showin
 g the production of electricity that\nverified five predictions of that th
 eory. We have since obtained\nfurther results that demonstrate an addition
 al predicted but\nsurprising behavior of the generated voltage\, lending f
 urther support\nto the underlying theory. In this talk I will first motiva
 te and\nderive these theoretical predictions and show their experimental\n
 verification\, then discuss possible ways to scale the predicted\neffects 
 to generate practical levels of electric power. The energy\ngenerated is u
 ltimately derived from the kinetic energy of Earth’s\nrotation\; even in t
 he extreme case where our civilization somehow\nobtained all its electrica
 l power from this effect\, Earth’s rotation\nwould slow by less than 10 mi
 lliseconds per century.
DTSTART:20260206T200000Z
DTEND:20260206T210000Z
LAST-MODIFIED:20260203T132522Z
LOCATION:Bowen Hall 222\, Princeton University
SUMMARY:Princeton University MAE Event
URL:https://www.ias.edu/sns/events/princeton-university-mae-event
END:VEVENT
BEGIN:VEVENT
UID:7dc7a351-22f3-4add-a606-d30123a1bf4b-0
DTSTAMP:20260413T074232Z
CREATED:20260204T194103Z
DESCRIPTION:Topic: TBA\n\nMore: https://www.ias.edu/sns/events/princeton-un
 iversity-seminar-survey-science-2
DTSTART:20260209T160000Z
DTEND:20260209T170000Z
LAST-MODIFIED:20260204T194157Z
LOCATION:Zoom and Peyton Dome Room
SUMMARY:Princeton University Seminar in Survey Science
URL:https://www.ias.edu/sns/events/princeton-university-seminar-survey-scie
 nce-2
END:VEVENT
BEGIN:VEVENT
UID:9e8f8f02-5f47-46e9-8050-da2bfecda15f-0
DTSTAMP:20260413T074232Z
CREATED:20260127T112305Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-extrasolar-planet-discussion-group-154
DTSTART:20260209T170000Z
DTEND:20260209T180000Z
LAST-MODIFIED:20260127T112320Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
 iscussion-group-154
END:VEVENT
BEGIN:VEVENT
UID:80112d2b-8545-4789-8243-0a0bc3cab869-0
DTSTAMP:20260413T074232Z
CREATED:20260122T173458Z
DESCRIPTION:Topic: Decay estimates for massless Vlasov fields on subextrema
 l Kerr spacetimes\n\nSpeakers: Leo Bigorgne\, Université de Rennes\n\nMore
 : https://www.ias.edu/sns/events/princeton-university-gravity-initiative-s
 eminar-12\n\nABSTRACT: We will present a commutation vector field approach
  for the\nsolutions to the massless Vlasov equation on the exterior of a\n
 Schwarzschild spacetime\, together with extensions to subextremal Kerr\nbl
 ack holes. The approach satisfies two properties. First\, it provides\ndec
 ay estimates for the energy flux induced by the energy-momentum\ntensor of
  Vlasov fields and its derivatives. Secondly\, it is\ncompatible with the 
 methods used to study wave equations on black hole\nspacetimes.\n\nFor thi
 s\, we make use of a weight function that captures the\nconcentration prop
 erties of the geodesic flow. By using a well-chosen\nmodification of its s
 ymplectic gradient\, we construct a norm for which\nany smooth solution to
  the massless Vlasov equation satisfies an\nintegrated energy decay estima
 te without relative degeneration. This\nis joint work with Renato Velozo.
DTSTART:20260209T173000Z
DTEND:20260209T183000Z
LAST-MODIFIED:20260129T144834Z
LOCATION:Jadwin Hall\, Princeton Gravity Initiative\, 4th Floor
SUMMARY:Princeton University Gravity Initiative Seminar
URL:https://www.ias.edu/sns/events/princeton-university-gravity-initiative-
 seminar-12
END:VEVENT
BEGIN:VEVENT
UID:7fbf2015-1724-437c-8cbe-88b9c0f24086-0
DTSTAMP:20260413T074232Z
CREATED:20260204T194820Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-sfir-star-formationism-rendezvous-13
DTSTART:20260209T200000Z
DTEND:20260209T210000Z
LAST-MODIFIED:20260204T194828Z
LOCATION:Peyton Dome Rm
SUMMARY:Princeton University SFIR: Star Formation/ISM Rendezvous
URL:https://www.ias.edu/sns/events/princeton-university-sfir-star-formation
 ism-rendezvous-13
END:VEVENT
BEGIN:VEVENT
UID:78f308ff-9fcd-49c7-ad12-83515b629f74-0
DTSTAMP:20260413T074232Z
CREATED:20260127T114534Z
DESCRIPTION:Topic: General discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-computational-astrophysics-club-64
DTSTART:20260210T190000Z
DTEND:20260210T200000Z
LAST-MODIFIED:20260127T114547Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
 physics-club-64
END:VEVENT
BEGIN:VEVENT
UID:613b838b-d0a7-46da-8eec-5ad49fe34216-0
DTSTAMP:20260413T074232Z
CREATED:20260204T193419Z
DESCRIPTION:Topic: Cosmological concordance from the early universe to the 
 near field\n\nSpeakers: Vera Gluscevic\, Institute for Advanced Study\n\nA
 ffiliation: University of Southern California\n\nMore: https://www.ias.edu
 /sns/events/princeton-university-dark-cosmos-seminar-44\n\nDETAILS: Cosmol
 ogical observables\, from the Lyman-alpha forest to the\nMilky Way substru
 cture\, offer unique avenues for probing dark matter\nand neutrino sectors
 . Moreover\, they often reveal anomalies and\ntensions that could signal n
 ew physics. I will review the status of\nthe recent early-universe and lat
 e-universe searches for dark matter\nand neutrino interactions\, highlight
 ing in particular new efforts to\nunderstand their effects on the distribu
 tion of matter on small\nscales. I will also discuss models that perturb d
 istribution of matter\nacross scales as well as cosmological concordance i
 n light of new\ndata.
DTSTART:20260210T210000Z
DTEND:20260210T223000Z
LAST-MODIFIED:20260204T193620Z
LOCATION:Jadwin Hall\, Joe Henry Room
SUMMARY:Princeton University Dark Cosmos Seminar
URL:https://www.ias.edu/sns/events/princeton-university-dark-cosmos-seminar
 -44
END:VEVENT
BEGIN:VEVENT
UID:60250bf4-77d7-4eb3-867d-c3efdce81147-0
DTSTAMP:20260413T074232Z
CREATED:20260204T201354Z
DESCRIPTION:Topic: LEO VLBI Pathfinder: Capturing the first video of a blac
 k hole\n\nSpeakers: Victoria Fawcett\, European Southern Observatory (ESO
 \n\nMore: https://www.ias.edu/sns/events/princeton-university-thunch-talk-
 110\n\nABSTRACT: On April 10\, 2019\, the Event Horizon Telescope captured
  the\nworld’s imagination with the first direct image of a black\nhole. LE
 O VLBI Pathfinder is a SmallSat mission led by Brown\nUniversity which see
 ks to take the next leap: Capturing the first\nvideo of a black hole. How?
  A video is worth a thousand pictures\, and\na picture\, in turn\, is wort
 h a thousand words. Thus\, to capture a\nvideo of a black hole\, one must 
 sample > 50% of the target in the\nfourier (u\, v) domain on sub-ISCO time
 scales (t < 30 min). This is\ndifficult from ground stations\, where Earth
 -Rotation Aperture\nSynthesis is restricted by the Earth’s rotational peri
 od. Thus\, LEO\nVLBI Pathfinder will launch into low-earth orbit\, where i
 t will orbit\nthe earth at 7.2 km/s\, directly imaging Sgr A* every 22 min
 utes\,\nenabling rapid and dense radio coverage of black hole targets. The
 se\nimages will be stacked atop each other to create a video\, enabling\nt
 racking of hotspots in the accretion disk\, constraints on the spin of\nSg
 r A*\, and testing of the Blandford-Znajek mechanism.
DTSTART:20260212T170000Z
DTEND:20260212T181500Z
LAST-MODIFIED:20260204T201502Z
LOCATION:Princeton University\, Peyton Hall\, Grand Central
SUMMARY:Princeton University Thunch Talk
URL:https://www.ias.edu/sns/events/princeton-university-thunch-talk-110
END:VEVENT
BEGIN:VEVENT
UID:19f99ac8-8d9a-4850-96b8-582ea64b68c6-0
DTSTAMP:20260413T074232Z
CREATED:20260109T195823Z
DESCRIPTION:Topic: Supernova Explosion Theory: The Emergence of Insight fro
 m Complexity\n\nSpeakers: Adam Burrows\, Princeton University\n\nMore: htt
 ps://www.ias.edu/sns/events/princeton-university-donald-r-hamilton-colloqu
 ium-series-37\n\nABSTRACT: The theory of compact-object birth and core-col
 lapse\nsupernovae is now entering a new and productive phase of rapid insi
 ght\ninto themechanism and systematics of explosion. The panoramic\nperspe
 ctive provided by the recent access to tens of state-of-the-art\n3D core-c
 ollapse simulations taken to late times has revealed\npotential correlatio
 ns between supernova observables and physical\ntrends with progenitors. A 
 productive dialogue is slowly emerging\nbetween theorists and observers th
 at promises to transform the study\nof core-collapse supernova explosions 
 and to inaugurate an new era of\nphysical characterization missing from th
 e past. Models now explode\nwithout artiface and theory is on the cusp of 
 being able to make\nquantitative predictions that seemed out of reach only
  a few years\nago. We have discovered correlations between explosion energ
 y\, neutron\nstar gravitational birth masses\, the yields of the chemical 
 elements\,\ndebris morphologies\, pulsar kicks\, and neutrino and gravitat
 ional-wave\nemissions. However\, while I contend the core-collapse superno
 va\nproblem is in broad outline and qualitatively now solved\, there is\nm
 uch yet to do in supernova theory before it can robustly and\nquantitative
 ly explain the variety of supernova observations. I will\nclose with sugge
 sted paths forward to achieve this ultimate goal.
DTSTART:20260212T210000Z
DTEND:20260212T220000Z
LAST-MODIFIED:20260109T195953Z
LOCATION:Jadwin Hall A-10
SUMMARY:Princeton University Donald R. Hamilton Colloquium Series
URL:https://www.ias.edu/sns/events/princeton-university-donald-r-hamilton-c
 olloquium-series-37
END:VEVENT
BEGIN:VEVENT
UID:98ac00fd-3327-4ce2-b676-26ad86c6dfee-0
DTSTAMP:20260413T074232Z
CREATED:20260204T202304Z
DESCRIPTION:Topic: How Many Digits Are There in the Telephone Numbers of Lo
 cal Galaxies\, and What Do They Mean?\n\nSpeakers: Sandy Faber\, Universit
 y of California\, Santa Cruz\n\nMore: https://www.ias.edu/sns/events/princ
 eton-university-galread-galacticextragalactic-reading-group-125\n\nEach we
 ek\, we hold a relatively informal seminar/discussion series\nwith an emph
 asis on extra-galactic and large-scale structure\nastrophysics.\n\nDuring 
 Galread a leader/visitor presents a recent paper to the\ndiscussion group.
  The PDF of the paper is projected onto a large\nscreen\, and a guest expl
 ains the paper\, section by section\, in greater\ndetail than may be expla
 ined within the text of the article. To aid\nwith discussion\, only the ar
 ticle PDF is presented -- no\npowerpoint-style slides. Galread discussions
  are very friendly and\ninteractive.
DTSTART:20260213T160000Z
DTEND:20260213T170000Z
LAST-MODIFIED:20260206T212624Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
 ragalactic-reading-group-125
END:VEVENT
BEGIN:VEVENT
UID:67481519-2ebf-4197-baf6-8764616ade36-0
DTSTAMP:20260413T074232Z
CREATED:20260127T112341Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-extrasolar-planet-discussion-group-155
DTSTART:20260216T170000Z
DTEND:20260216T180000Z
LAST-MODIFIED:20260127T112537Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
 iscussion-group-155
END:VEVENT
BEGIN:VEVENT
UID:ccff2d29-cc2e-491f-a3c7-01cc41c23f2d-0
DTSTAMP:20260413T074232Z
CREATED:20260122T173545Z
DESCRIPTION:Topic: ¿What is an R7-Brane?\n\nSpeakers: Jonathan Heckman\, Un
 iversity of Pennsylvania\n\nMore: https://www.ias.edu/sns/events/princeton
 -university-gravity-initiative-seminar-13\n\nABSTRACT: The Swampland Cobor
 dism conjecture asserts that in quantum\ngravity\, any spacetime can termi
 nate\, i.e.\, the cobordism group of\nquantum gravity is trivial. A striki
 ng consequence of this conjecture\nis that it predicts the existence of pr
 eviously unknown\nnon-supersymmetric stable objects in gravity. In type II
 B string\ntheory\, this leads to a new class of branes now known as reflec
 tion\n7-branes (R7-branes). We present both some topological features of\n
 these solutions\, as well as the corresponding gravitational\nbackgrounds 
 these sources generate. This bulk gravity analysis also\nprovides strong e
 vidence for the existence of a novel 8D quantum field\ntheory localized on
  the worldvolume of the brane.
DTSTART:20260216T173000Z
DTEND:20260216T183000Z
LAST-MODIFIED:20260213T155145Z
LOCATION:Jadwin Hall\, Princeton Gravity Initiative\, 4th Floor
SUMMARY:Princeton University Gravity Initiative Seminar
URL:https://www.ias.edu/sns/events/princeton-university-gravity-initiative-
 seminar-13
END:VEVENT
BEGIN:VEVENT
UID:3c00a8c2-39a9-43e8-b6ad-f21dca148288-0
DTSTAMP:20260413T074233Z
CREATED:20260213T164951Z
DESCRIPTION:Topic: Topological Mapping of Superbubbles across Galactic and 
 Extragalactic Environments \n\nSpeakers: Theo O'Neill\, Harvard University
 \n\nMore: https://www.ias.edu/sns/events/princeton-university-sfir-star-fo
 rmationism-rendezvous-14\n\nFeedback-driven bubbles reshape the interstell
 ar medium and influence\nthe progression of star formation on galactic sca
 les.  Thanks to\nfacilities including Gaia and JWST\, we can now resolve t
 he local\nenvironments of superbubbles in the Milky Way and nearby galaxie
 s in\nunprecedented detail.  However\, current methods for the\nidentifica
 tion of superbubbles struggle to simultaneously map bubbles\nand their sur
 rounding structures (like molecular clouds and filaments)\nin a self-consi
 stent framework.  We present a new method for the\ntopological identificat
 ion and geometric mapping of structures in\nastronomical images\, informed
  by the technique of persistent homology\nfrom the field of computational 
 algebraic topology.  We highlight two\napplications of this structure-find
 ing method: first\, to a\nparsec-resolution 3D dust map of the Solar Neigh
 borhood\, and second\,\nto a sample of nearby galaxies observed with JWST.
   We compare the\nproperties of voids in these datasets to the Local Bubbl
 e within which\nour own Solar System resides\, and explore the role that s
 uperbubbles\nmay play in shaping galactic structure.
DTSTART:20260216T200000Z
DTEND:20260216T210000Z
LAST-MODIFIED:20260213T165116Z
LOCATION:Peyton Dome Rm
SUMMARY:Princeton University SFIR: Star Formation/ISM Rendezvous
URL:https://www.ias.edu/sns/events/princeton-university-sfir-star-formation
 ism-rendezvous-14
END:VEVENT
BEGIN:VEVENT
UID:ab11e967-ced6-4805-b45e-a35e4823235e-0
DTSTAMP:20260413T074233Z
CREATED:20260127T114553Z
DESCRIPTION:Topic: General discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-computational-astrophysics-club-65
DTSTART:20260217T190000Z
DTEND:20260217T200000Z
LAST-MODIFIED:20260127T114609Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
 physics-club-65
END:VEVENT
BEGIN:VEVENT
UID:39793148-1d86-4cda-9110-9c42da56466d-0
DTSTAMP:20260413T074233Z
CREATED:20260213T181804Z
DESCRIPTION:Topic: TBA\n\nMore: https://www.ias.edu/sns/events/princeton-un
 iversity-galread-galacticextragalactic-reading-group-126\n\nEach week\, we
  hold a relatively informal seminar/discussion series\nwith an emphasis on
  extra-galactic and large-scale structure\nastrophysics.\n\nDuring Galread
  a leader/visitor presents a recent paper to the\ndiscussion group. The PD
 F of the paper is projected onto a large\nscreen\, and a guest explains th
 e paper\, section by section\, in greater\ndetail than may be explained wi
 thin the text of the article. To aid\nwith discussion\, only the article P
 DF is presented -- no\npowerpoint-style slides. Galread discussions are ve
 ry friendly and\ninteractive.
DTSTART:20260220T160000Z
DTEND:20260220T170000Z
LAST-MODIFIED:20260213T181825Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
 ragalactic-reading-group-126
END:VEVENT
BEGIN:VEVENT
UID:aed07619-8d41-4908-a4a9-310ed4ff132f-0
DTSTAMP:20260413T074233Z
CREATED:20260213T181711Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-astroplasmas-seminar-99
DTSTART:20260220T173000Z
DTEND:20260220T183000Z
LAST-MODIFIED:20260213T181727Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
 r-99
END:VEVENT
BEGIN:VEVENT
UID:746a3089-3050-4c5c-a42b-8154763f4490-0
DTSTAMP:20260413T074233Z
CREATED:20260220T145627Z
DESCRIPTION:Topic: TBA\n\nMore: https://www.ias.edu/sns/events/princeton-un
 iversity-seminar-survey-science-3
DTSTART:20260223T160000Z
DTEND:20260223T170000Z
LAST-MODIFIED:20260220T145643Z
LOCATION:Zoom and Peyton Dome Room
SUMMARY:Princeton University Seminar in Survey Science
URL:https://www.ias.edu/sns/events/princeton-university-seminar-survey-scie
 nce-3
END:VEVENT
BEGIN:VEVENT
UID:23d0fcef-65da-466b-9e02-a5e6db49e886-0
DTSTAMP:20260413T074233Z
CREATED:20260127T112545Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-extrasolar-planet-discussion-group-156
DTSTART:20260223T170000Z
DTEND:20260223T180000Z
LAST-MODIFIED:20260127T112601Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
 iscussion-group-156
END:VEVENT
BEGIN:VEVENT
UID:66e72783-c10f-4397-93aa-071193d3fadb-0
DTSTAMP:20260413T074233Z
CREATED:20260220T150057Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-sfir-star-formationism-rendezvous-15
DTSTART:20260223T200000Z
DTEND:20260223T210000Z
LAST-MODIFIED:20260220T150607Z
LOCATION:Peyton Dome Rm
SUMMARY:Princeton University SFIR: Star Formation/ISM Rendezvous
URL:https://www.ias.edu/sns/events/princeton-university-sfir-star-formation
 ism-rendezvous-15
END:VEVENT
BEGIN:VEVENT
UID:62c953ec-6d2b-458b-87d5-0a19c13f1f33-0
DTSTAMP:20260413T074233Z
CREATED:20260127T114615Z
DESCRIPTION:Topic: General discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-computational-astrophysics-club-66
DTSTART:20260224T190000Z
DTEND:20260224T200000Z
LAST-MODIFIED:20260127T114627Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
 physics-club-66
END:VEVENT
BEGIN:VEVENT
UID:f2814598-2644-429b-932d-c75bf824da15-0
DTSTAMP:20260413T074233Z
CREATED:20260213T181846Z
DESCRIPTION:Topic: Numerical approach to compressible shallow-water dynamic
 s of neutron-star spreading layers.\n\nSpeakers: Aleksandr Rusakov\, Princ
 eton University\n\nMore: https://www.ias.edu/sns/events/princeton-universi
 ty-thunch-talk-111
DTSTART:20260226T170000Z
DTEND:20260226T181500Z
LAST-MODIFIED:20260225T155617Z
LOCATION:Princeton University\, Peyton Hall\, Grand Central
SUMMARY:Princeton University Thunch Talk
URL:https://www.ias.edu/sns/events/princeton-university-thunch-talk-111
END:VEVENT
BEGIN:VEVENT
UID:c44435c3-cb9c-4ff2-b66a-a1f773f65d46-0
DTSTAMP:20260413T074233Z
CREATED:20260220T152339Z
DESCRIPTION:Topic: TBA\n\nMore: https://www.ias.edu/sns/events/princeton-un
 iversity-galread-galacticextragalactic-reading-group-127\n\nEach week\, we
  hold a relatively informal seminar/discussion series\nwith an emphasis on
  extra-galactic and large-scale structure\nastrophysics.\n\nDuring Galread
  a leader/visitor presents a recent paper to the\ndiscussion group. The PD
 F of the paper is projected onto a large\nscreen\, and a guest explains th
 e paper\, section by section\, in greater\ndetail than may be explained wi
 thin the text of the article. To aid\nwith discussion\, only the article P
 DF is presented -- no\npowerpoint-style slides. Galread discussions are ve
 ry friendly and\ninteractive.
DTSTART:20260227T160000Z
DTEND:20260227T170000Z
LAST-MODIFIED:20260220T152357Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
 ragalactic-reading-group-127
END:VEVENT
BEGIN:VEVENT
UID:4d67fd09-6e76-426c-83d4-9cb72941a492-0
DTSTAMP:20260413T074233Z
CREATED:20260220T152622Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-astroplasmas-seminar-100
DTSTART:20260227T173000Z
DTEND:20260227T183000Z
LAST-MODIFIED:20260220T152633Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
 r-100
END:VEVENT
BEGIN:VEVENT
UID:4c2d988c-202b-4577-b8b5-ac78c85dfa95-0
DTSTAMP:20260413T074233Z
CREATED:20260127T112606Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-extrasolar-planet-discussion-group-157
DTSTART:20260302T170000Z
DTEND:20260302T180000Z
LAST-MODIFIED:20260127T112620Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
 iscussion-group-157
END:VEVENT
BEGIN:VEVENT
UID:1684f420-b3e6-4426-a374-5d8f5cef0fd2-0
DTSTAMP:20260413T074233Z
CREATED:20260122T173742Z
DESCRIPTION:Topic: Probing Dense Matter Physics with Multimessenger Observa
 tions of Neutron Stars: Equation of State and Pressure Anisotropy\n\nSpeak
 ers: Kent Yagi\, University of Virginia\n\nMore: https://www.ias.edu/sns/e
 vents/cancelled-princeton-university-gravity-initiative-seminar\n\nABSTRAC
 T: The extreme-density environments inside neutron stars\nprovide a unique
  natural testbed for probing nuclear physics. In the\nfirst part of this t
 alk\, I will explain how gamma-ray burst\nobservations can be used to extr
 act information about post-merger\nremnants of binary neutron star mergers
 \, and how multimessenger\nobservations of neutron stars can constrain the
  nuclear matter\nequation of state. In the second part\, I will focus on p
 robing\npressure anisotropy inside neutron stars\, motivated by various\np
 hysical mechanisms including elasticity and magnetic fields. Adopting\na p
 henomenological anisotropy model\, we find that\, unlike the\nisotropic-pr
 essure case\, anisotropic neutron stars can be unstable to\nnon-radial pul
 sations. Using a quasi-universal relation between the\ntidal deformability
  and the fundamental oscillation frequency\, we\nderive equation-of-state–
 independent constraints on the degree of\npressure anisotropy from gravita
 tional-wave observations.
DTSTART:20260302T173000Z
DTEND:20260302T183000Z
LAST-MODIFIED:20260302T142817Z
LOCATION:Jadwin Hall\, Princeton Gravity Initiative\, 4th Floor
SUMMARY:CANCELLED - Princeton University Gravity Initiative Seminar
URL:https://www.ias.edu/sns/events/cancelled-princeton-university-gravity-i
 nitiative-seminar
END:VEVENT
BEGIN:VEVENT
UID:e4d2abb3-c708-4671-8a3e-7f6c1a48679a-0
DTSTAMP:20260413T074233Z
CREATED:20260302T150657Z
DESCRIPTION:Topic: The semiclassical energy outflux emerging from a collaps
 ing shell\n\nSpeakers: Noa Zilberman\, Princeton University\n\nMore: https
 ://www.ias.edu/sns/events/new-talk-scheduled-princeton-university-gravity-
 initiative-seminar\n\nABSTRACT: When a compact object collapses to form a 
 black hole\,\nquantum field theory predicts the emission of an energy outf
 lux to\nfuture null infinity\, which later relaxes to Hawking radiation. W
 ithin\nthe semiclassical framework\, we derive a simple\, closed form\,\na
 nalytical expression for the energy outflux emitted from a spherical\nthin
  null shell collapsing to form a black hole. In particular\, this\nenergy 
 outflux vanishes (quadratically in r-2M) as the shell\napproaches the hori
 zon. This result refutes claims that the Hawking\nenergy outflux originate
 s from the collapsing body\, showing instead\nthat it develops in a broad 
 strong-field region. Additionally\, this\nvanishing implies that semiclass
 ical backreaction cannot prevent or\nsignificantly affect the classical pr
 ocess of gravitational collapse\nand horizon formation (as sometimes claim
 ed).
DTSTART:20260302T173000Z
DTEND:20260302T183000Z
LAST-MODIFIED:20260302T150804Z
LOCATION:Jadwin Hall\, Princeton Gravity Initiative\, 4th Floor
SUMMARY:NEW TALK SCHEDULED - Princeton University Gravity Initiative Semina
 r
URL:https://www.ias.edu/sns/events/new-talk-scheduled-princeton-university-
 gravity-initiative-seminar
END:VEVENT
BEGIN:VEVENT
UID:9d1194b1-33ae-4343-9fad-ff94cc3cfc68-0
DTSTAMP:20260413T074233Z
CREATED:20260227T193335Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-sfir-star-formationism-rendezvous-16
DTSTART:20260302T200000Z
DTEND:20260302T210000Z
LAST-MODIFIED:20260227T193352Z
LOCATION:Peyton Dome Rm
SUMMARY:Princeton University SFIR: Star Formation/ISM Rendezvous
URL:https://www.ias.edu/sns/events/princeton-university-sfir-star-formation
 ism-rendezvous-16
END:VEVENT
BEGIN:VEVENT
UID:bd630cc3-642a-46a5-a001-51b0f6680105-0
DTSTAMP:20260413T074233Z
CREATED:20260127T114632Z
DESCRIPTION:Topic: General discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-computational-astrophysics-club-67
DTSTART:20260303T190000Z
DTEND:20260303T200000Z
LAST-MODIFIED:20260127T114645Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
 physics-club-67
END:VEVENT
BEGIN:VEVENT
UID:03fa410d-5da6-4c21-bed3-e774ba51b151-0
DTSTAMP:20260413T074233Z
CREATED:20260227T194551Z
DESCRIPTION:Topic: Recent Progress on the Study of Galaxy Clusters with MUS
 TANG-2\n\nSpeakers: John Orlowski-Scherer\, University of Pennsylvania \n
 \nMore: https://www.ias.edu/sns/events/princeton-university-thunch-talk-11
 2\n\nABSTRACT: As the largest objects that have had time to form in the\nl
 ifetime of the universe\, clusters of galaxies are important tracers\nof t
 he growth of structure in the universe. Their number and size\nindependent
 ly constrain the universe's formational history\, and hence\nprobe its und
 erlying cosmology. They also form 'laboratories for\nastrophysics'\, as th
 e astrophysical processes of active galactic\nnuclei (AGN) and supernova f
 eedback on the cosmological growth of\ngalaxy clusters. Questions around t
 he growth and structure of galaxy\nclusters abound\, such as which process
 es are most important for\nfeedback\, how these processes actually couple 
 to the inter-cluster\nmedia (ICM)\, etc. MUSTANG-2 is a high resolution (9
 ')\, high\nsensitivity (~10s of uJy) instrument on the Green Bank Telescop
 e which\nprovides a unique view into galaxy clusters via the scattering of
 \ncosmic microwave background photons off of the ICM\, a process known as
 \nthe thermal Sunyaev-Zeldovich (tSZ) effect. This talk will give an\nover
 view of some recent progress made using MUSTANG-2\, in particular\nstudyin
 g the formational history of clusters at high redshift and the\nprocess of
  AGN feedback. I will also give a short prospectus on the\nfuture of high-
 resolution tSZ studies of galaxy clusters.
DTSTART:20260305T170000Z
DTEND:20260305T181500Z
LAST-MODIFIED:20260227T194652Z
LOCATION:Princeton University\, Peyton Hall\, Grand Central
SUMMARY:Princeton University Thunch Talk
URL:https://www.ias.edu/sns/events/princeton-university-thunch-talk-112
END:VEVENT
BEGIN:VEVENT
UID:9f35d49c-cbb4-40a8-9bec-64d07286e38c-0
DTSTAMP:20260413T074233Z
CREATED:20260227T195207Z
DESCRIPTION:Topic: Large-scale dynamos driven by shear-flow-induced jets\n
 \nSpeakers: Bindesh Tripathi\, Columbia University\n\nMore: https://www.ia
 s.edu/sns/events/princeton-university-astroplasmas-seminar-101\n\nThe orig
 in of cosmic magnetic fields remains an open problem in\nastrophysics.  In
  1955\, Eugene Parker proposed a mean-field dynamo\ntheory by parameterizi
 ng the effects of small-scale turbulence.\n Although this framework succes
 sfully reproduces observed large-scale\nmagnetic fields\, it relies on par
 ameters that are difficult to\nconstrain from first principles.  Here\, by
  analyzing an unstable\,\ndriven shear flow\, we develop analytic theory a
 nd perform\nthree-dimensional simulations of turbulence with up to\n4\,096
  × 4\,096 × 8\,192 grid points.  The simulations\ndemonstrate _ab initio_ 
 generation of quasi-periodic\, large-scale\nmagnetic fields.  The generati
 on operates via the mean-vorticity\neffect—an additional mean-field dynamo
  process postulated in\n1990—and is driven by robust\, large-scale\, three
 -dimensional\,\nnonlinear jets.  Predictions from the jet-driven dynamo ar
 e confirmed\nusing data from a shear-driven laboratory dynamo experiment. 
  This\ndynamo mechanism applies to a variety of astrophysical systems\,\ni
 ncluding binary neutron star mergers\, where it can produce some of\nthe s
 trongest magnetic fields in the Universe\, providing signals for\nmulti-me
 ssenger astronomy.
DTSTART:20260306T173000Z
DTEND:20260306T183000Z
LAST-MODIFIED:20260303T135639Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
 r-101
END:VEVENT
BEGIN:VEVENT
UID:73630c45-c647-4447-af9f-cc544fa5536a-0
DTSTAMP:20260413T074233Z
CREATED:20260309T124419Z
DESCRIPTION:Topic: TBA\n\nMore: https://www.ias.edu/sns/events/princeton-un
 iversity-seminar-survey-science-4
DTSTART:20260309T150000Z
DTEND:20260309T160000Z
LAST-MODIFIED:20260309T124454Z
LOCATION:Zoom and Peyton Dome Room
SUMMARY:Princeton University Seminar in Survey Science
URL:https://www.ias.edu/sns/events/princeton-university-seminar-survey-scie
 nce-4
END:VEVENT
BEGIN:VEVENT
UID:bf8ba1c8-d58f-4e2c-beb0-b81088e6c60d-0
DTSTAMP:20260413T074233Z
CREATED:20260127T112626Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-extrasolar-planet-discussion-group-158
DTSTART:20260309T160000Z
DTEND:20260309T170000Z
LAST-MODIFIED:20260127T112645Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
 iscussion-group-158
END:VEVENT
BEGIN:VEVENT
UID:dfb37c3d-d137-4882-a485-d0890e0a3328-0
DTSTAMP:20260413T074233Z
CREATED:20260309T124715Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-sfir-star-formationism-rendezvous-17
DTSTART:20260309T190000Z
DTEND:20260309T200000Z
LAST-MODIFIED:20260309T124725Z
LOCATION:Peyton Dome Rm
SUMMARY:Princeton University SFIR: Star Formation/ISM Rendezvous
URL:https://www.ias.edu/sns/events/princeton-university-sfir-star-formation
 ism-rendezvous-17
END:VEVENT
BEGIN:VEVENT
UID:08e9f961-3ee6-4d77-9d46-51c776546a8b-0
DTSTAMP:20260413T074233Z
CREATED:20260115T181212Z
DESCRIPTION:Topic: Freezing-in the Axiverse\n\nSpeakers: Christipher Desser
 t\, Flatiron Institute\n\nMore: https://www.ias.edu/sns/events/princeton-u
 niversity-dark-cosmos-seminar-43\n\nAbstract - The presence of light axion
 s in the infrared is a generic\nfeature of many ultraviolet (UV) scenarios
 \, including string theory\,\nwith the number of such axions N naturally O
 (10-100). Even when these\naxions interact very weakly with the Standard M
 odel (SM)\, the presence\nof N light axions is constrained by the number o
 f relativistic degrees\nof freedom N_eff. Under generic assumptions for th
 e structure of the\naxion-Standard Model couplings\, the predicted N_eff m
 ay be already\nexcluded by Planck or probed by ongoing cosmic microwave ba
 ckground\nsurveys like Simons Observatory.
DTSTART:20260310T200000Z
DTEND:20260310T213000Z
LAST-MODIFIED:20260129T145302Z
LOCATION:Jadwin Hall\, Joe Henry Room
SUMMARY:Princeton University Dark Cosmos Seminar
URL:https://www.ias.edu/sns/events/princeton-university-dark-cosmos-seminar
 -43
END:VEVENT
BEGIN:VEVENT
UID:a4062a98-a2ab-4257-b30a-b239d929835c-0
DTSTAMP:20260413T074233Z
CREATED:20260127T112726Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-extrasolar-planet-discussion-group-159
DTSTART:20260316T160000Z
DTEND:20260316T170000Z
LAST-MODIFIED:20260127T112746Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
 iscussion-group-159
END:VEVENT
BEGIN:VEVENT
UID:1f807f4f-085f-422d-8c1a-41c719f67ad2-0
DTSTAMP:20260413T074233Z
CREATED:20260122T173644Z
DESCRIPTION:Topic: Black Hole Non-linear Stability: A Mathematical Overview
 \n\nSpeakers: Elena Giorgi\,  Columbia University\n\nMore: https://www.ias
 .edu/sns/events/princeton-university-gravity-initiative-seminar-15\n\nABST
 RACT: In this talk\, I will survey key geometric and analytic\naspects of 
 black hole perturbations\, focusing on recent advances in\nunderstanding t
 heir dynamical stability\, with a particular emphasis on\nthe recent proof
  of the full nonlinear stability of the slowly\nrotating Kerr family as so
 lutions to the vacuum Einstein equations.
DTSTART:20260316T163000Z
DTEND:20260316T173000Z
LAST-MODIFIED:20260305T142514Z
LOCATION:Jadwin Hall\, Princeton Gravity Initiative\, 4th Floor
SUMMARY:Princeton University Gravity Initiative Seminar
URL:https://www.ias.edu/sns/events/princeton-university-gravity-initiative-
 seminar-15
END:VEVENT
BEGIN:VEVENT
UID:6b6edc75-15c8-42eb-82b4-6fe6d8b1a5a2-0
DTSTAMP:20260413T074233Z
CREATED:20260313T140046Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-sfir-star-formationism-rendezvous-18
DTSTART:20260316T190000Z
DTEND:20260316T200000Z
LAST-MODIFIED:20260313T140106Z
LOCATION:Peyton Dome Rm
SUMMARY:Princeton University SFIR: Star Formation/ISM Rendezvous
URL:https://www.ias.edu/sns/events/princeton-university-sfir-star-formation
 ism-rendezvous-18
END:VEVENT
BEGIN:VEVENT
UID:0074f87f-56c7-4420-86c8-8f0eb7535572-0
DTSTAMP:20260413T074233Z
CREATED:20260127T114650Z
DESCRIPTION:Topic: General discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-computational-astrophysics-club-68
DTSTART:20260317T180000Z
DTEND:20260317T190000Z
LAST-MODIFIED:20260127T114703Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
 physics-club-68
END:VEVENT
BEGIN:VEVENT
UID:afe5b976-b17f-44fc-9437-05b98ce0af76-0
DTSTAMP:20260413T074233Z
CREATED:20260313T140942Z
DESCRIPTION:Topic: TDE 2025abcr: A Tidal Disruption Event in the Outskirts 
 of a Massive Galaxy\n\nSpeakers: Robert David Stein\, University of Maryla
 nd\n\nMore: https://www.ias.edu/sns/events/princeton-university-thunch-tal
 k-113
DTSTART:20260319T160000Z
DTEND:20260319T171500Z
LAST-MODIFIED:20260313T142032Z
LOCATION:Princeton University\, Peyton Hall\, Grand Central
SUMMARY:Princeton University Thunch Talk
URL:https://www.ias.edu/sns/events/princeton-university-thunch-talk-113
END:VEVENT
BEGIN:VEVENT
UID:47f33fcc-8257-4a70-a69e-a38360c34cc3-0
DTSTAMP:20260413T074233Z
CREATED:20260313T141230Z
DESCRIPTION:Topic: The X-Ray Dot: Exotic Dust of a Late-Stage Little Red do
 t?\n\nSpeakers: Raphael Hviding\, Max Planck Institute for Astronomy (MPIA
 )\n\nMore: https://www.ias.edu/sns/events/princeton-university-galread-gal
 acticextragalactic-reading-group-128\n\nEach week\, we hold a relatively i
 nformal seminar/discussion series\nwith an emphasis on extra-galactic and 
 large-scale structure\nastrophysics.\n\nDuring Galread a leader/visitor pr
 esents a recent paper to the\ndiscussion group. The PDF of the paper is pr
 ojected onto a large\nscreen\, and a guest explains the paper\, section by
  section\, in greater\ndetail than may be explained within the text of the
  article. To aid\nwith discussion\, only the article PDF is presented -- n
 o\npowerpoint-style slides. Galread discussions are very friendly and\nint
 eractive.
DTSTART:20260320T150000Z
DTEND:20260320T160000Z
LAST-MODIFIED:20260313T143011Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
 ragalactic-reading-group-128
END:VEVENT
BEGIN:VEVENT
UID:bd8b344d-3a92-4f3b-b3da-3639a9da3f9a-0
DTSTAMP:20260413T074233Z
CREATED:20260313T141708Z
DESCRIPTION:Topic: A Modern Perspective on Pair Plasma Creation in Neutron 
 Star Magnetospheres\n\nSpeakers: Andrey Timokhin\, Instytut Astronomii Uni
 wersytet Zielonogórski\n\nMore: https://www.ias.edu/sns/events/princeton-u
 niversity-astroplasmas-seminar-102\n\nThe magnetospheres of pulsars are fi
 lled with dense\nelectron–positron plasma that is responsible for essentia
 lly all\ntheir non-thermal emission. This plasma is believed to be created
  in\nelectromagnetically driven electron–positron pair cascades in their\n
 polar caps\, triggered by intermittent strong electric fields that\naccele
 rate charged particles to ultrarelativistic energies. These\nparticles emi
 t high-energy photons\, which subsequently decay into\nelectron–positron p
 airs. Although pair creation in neutron star\nmagnetospheres has been stud
 ied extensively over the past six decades\,\nonly recently have we been ab
 le to model this process in a truly\nself-consistent way\, thanks to moder
 n numerical techniques and\nadvances in computer hardware. The results of 
 these simulations have\nalready shown that several standard features of ea
 rlier models are\nincorrect. For example\, pair discharges appear to be in
 herently\nintermittent\, there are no sparks in pulsar polar caps\, and ra
 dio\nemission may be generated directly by the discharges themselves. In\n
 this talk\, I will provide an overview of the most recent developments\nin
  this field and present possible solutions to the long-standing and\nnotor
 iously difficult problem of the origin of pulsar radio emission.\n\n 
DTSTART:20260320T163000Z
DTEND:20260320T173000Z
LAST-MODIFIED:20260319T141021Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
 r-102
END:VEVENT
BEGIN:VEVENT
UID:c7c2023e-3b58-423a-8303-6ecde18521fc-0
DTSTAMP:20260413T074233Z
CREATED:20260127T112751Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-extrasolar-planet-discussion-group-160
DTSTART:20260323T160000Z
DTEND:20260323T170000Z
LAST-MODIFIED:20260127T112807Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
 iscussion-group-160
END:VEVENT
BEGIN:VEVENT
UID:ff78ceac-291f-42c9-9b5f-e1bfa7bda1f2-0
DTSTAMP:20260413T074233Z
CREATED:20260122T173948Z
DESCRIPTION:Topic: Goodness-of-Fit for Gravitational-Wave Population Infere
 nce\n\nSpeakers: Tejaswi Venumadhav\, University of California\, Santa Bar
 bara\n\nMore: https://www.ias.edu/sns/events/princeton-university-gravity-
 initiative-seminar-17\n\nABSTRACT: Gravitational-wave astronomy is enterin
 g a regime in which\ndetections are sufficiently numerous to support popul
 ation-level\nstatistical inference. The standard tool is hierarchical Baye
 sian\ninference\, which is powerful but does not natively provide a notion
  of\ngoodness of fit. This is often acceptable when population models are
 \nwell understood\, but becomes problematic when they are not. In that\nre
 gime\, broad priors on nuisance parameters can combine into an\neffectivel
 y informative prior structure\, and inference may converge to\nparameter r
 egions that are weakly informed by the data. Similarly\,\nmodel misspecifi
 cation can drive convergence to biased or otherwise\npoor solutions while 
 yielding apparently stable fits in model space.\nIn this talk\, I present 
 a goodness-of-fit framework designed to\noperate in observed space rather 
 than only in model space\, providing a\ndirect way to diagnose misspecific
 ation in hierarchical population\nanalyses. I will show preliminary result
 s for black-hole spin\npopulations\, and discuss how the framework may ext
 end to more general\npopulation settings.
DTSTART:20260323T163000Z
DTEND:20260323T173000Z
LAST-MODIFIED:20260310T193229Z
LOCATION:Jadwin Hall\, Princeton Gravity Initiative\, 4th Floor
SUMMARY:Princeton University Gravity Initiative Seminar
URL:https://www.ias.edu/sns/events/princeton-university-gravity-initiative-
 seminar-17
END:VEVENT
BEGIN:VEVENT
UID:fe527cec-6e52-4abc-a44e-466ae71e12e1-0
DTSTAMP:20260413T074233Z
CREATED:20260313T150256Z
DESCRIPTION:Topic: Where's the Gas Going? Observational and Theoretical Per
 spectives on Ejective & Preventative Feedback in Galaxies\n\nSpeakers: Osa
 se Omoruyi\, Princeton University\n\nMore: https://www.ias.edu/sns/events/
 princeton-university-sfir-star-formationism-rendezvous-19\n\nGalaxies regu
 late star formation through the baryon cycle\, the\ncontinuous exchange of
  mass and energy with their surroundings.\nUnderstanding this process requ
 ires connecting theoretical predictions\nto direct observations of gas flo
 ws. Using a new semi-analytic model\ncalibrated to the baryon cycle modele
 d in the IllustrisTNG\nsimulations\, I will show that realistic galaxy pop
 ulations require\nstrong stellar and black hole feedback that drives gas o
 ut of galaxies\nand their halos. The key question is whether such strong f
 eedback\noccurs in nature\, and if so\, how it operates. Multi-wavelength
 \nobservations from ALMA\, Chandra\, HST\, JWST\, and MUSE now allow us to
 \nprobe the gas within and around galaxies in unprecedented detail. I\nwil
 l present observations of massive galaxies in clusters\, one of the\nbest 
 environments for studying the baryon cycle\, showing that black\nhole feed
 back drives powerful jets that heat the surrounding gas and\nuplift large 
 amounts of it. Much of this gas is expected to remain\nbound to the halo a
 nd eventually return to the galaxy\, where it can\nfuel future star format
 ion and black hole activity. These results\nfavor a fountain-flow\, preven
 tative view of feedback over a purely\nejective picture. To conclude\, I w
 ill discuss how combining\nhigh-resolution observations across diverse gal
 axy populations with\ndetailed simulations can reconcile these different p
 erspectives on\nfeedback and constrain flexible models for the large-volum
 e surveys of\nthe Rubin era.
DTSTART:20260323T190000Z
DTEND:20260323T200000Z
LAST-MODIFIED:20260323T130653Z
LOCATION:Peyton Dome Rm
SUMMARY:Princeton University SFIR: Star Formation/ISM Rendezvous
URL:https://www.ias.edu/sns/events/princeton-university-sfir-star-formation
 ism-rendezvous-19
END:VEVENT
BEGIN:VEVENT
UID:64703225-f949-436c-8bd9-8f8fb4b01ecd-0
DTSTAMP:20260413T074233Z
CREATED:20260127T114708Z
DESCRIPTION:Topic: General discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-computational-astrophysics-club-69
DTSTART:20260324T180000Z
DTEND:20260324T190000Z
LAST-MODIFIED:20260127T114721Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
 physics-club-69
END:VEVENT
BEGIN:VEVENT
UID:5aa6c397-6a01-47f6-8422-e3c4c3caa838-0
DTSTAMP:20260413T074233Z
CREATED:20260310T193305Z
DESCRIPTION:Topic: Bloodhound Unleashed: Mapping Dark Matter Substructure i
 n the Milky Way\n\nSpeakers: Hyunsu Kong\, Rensselaer Polytechnic Institut
 e\n\nMore: https://www.ias.edu/sns/events/princeton-university-dark-cosmos
 -seminar-46\n\nABSTRACT: The Lambda-CDM cosmological model predicts a weal
 th of\nsmall-scale structures\, including dark matter subhalos residing wi
 thin\nmore massive halos such as that of our own Milky Way Galaxy. Some of
 \nthese subhalos may be massive enough to host faint galaxies\, while\nsma
 ller ones fall below the threshold for galaxy formation and remain\ndark. 
 The abundance and survivability of both luminous and dark\nsubhalos offer 
 powerful tests of the Lambda-CDM paradigm and models of\ngalaxy formation 
 at the smallest scales. While numerical simulations\nare essential for qua
 ntifying these substructures\, the suitability of\nstandard tools\, such a
 s halo finders and merger trees\, for identifying\nand tracking subhalos i
 n simulations is increasingly questioned\,\nespecially for low-mass subhal
 os orbiting deep within a host halo’s\npotential. I present Bloodhound\, a
  next-generation subhalo tracking\nalgorithm designed to improve the accur
 acy and consistency of subhalo\ntracking\, even in the densest regions of 
 host halos. I will discuss\nthe current status of key small-scale challeng
 es to Lambda-CDM and\nhighlight Bloodhound’s contributions to refining the
  statistical\npredictions of subhalo populations in cosmological simulatio
 ns.\nFinally\, I will explore the scientific implications of these\nimprov
 ements for constraining alternative dark matter models and the\nlow-mass t
 hreshold for galaxy formation. These results are especially\ntimely in lig
 ht of upcoming observational breakthroughs from surveys\nincluding Euclid\
 , JWST\, SDSS\, and Rubin\, which promise to probe the\nstructure of the n
 earby universe at the smallest galactic scales.
DTSTART:20260324T200000Z
DTEND:20260324T213000Z
LAST-MODIFIED:20260310T193422Z
LOCATION:Jadwin Hall\, Joe Henry Room
SUMMARY:Princeton University Dark Cosmos Seminar
URL:https://www.ias.edu/sns/events/princeton-university-dark-cosmos-seminar
 -46
END:VEVENT
BEGIN:VEVENT
UID:3d00e77e-1bcb-4942-9752-8e6cd92a55fa-0
DTSTAMP:20260413T074233Z
CREATED:20260323T131955Z
DESCRIPTION:Topic: The songs of stellar magnetic fields\n\nSpeakers: Nichol
 as Rui\, Princeton University\n\nMore: https://www.ias.edu/sns/events/prin
 ceton-university-thunch-talk-114
DTSTART:20260326T160000Z
DTEND:20260326T171500Z
LAST-MODIFIED:20260323T132035Z
LOCATION:Princeton University\, Peyton Hall\, Grand Central
SUMMARY:Princeton University Thunch Talk
URL:https://www.ias.edu/sns/events/princeton-university-thunch-talk-114
END:VEVENT
BEGIN:VEVENT
UID:439fc987-ccbd-45e5-b2b9-a8a8a4995893-0
DTSTAMP:20260413T074233Z
CREATED:20260323T132311Z
DESCRIPTION:Topic: Identifying Changing-Look AGN Transitions in Light Curve
  Data with the Zwicky Transient Facility\n\nSpeakers: Maggie Verrico\, Uni
 versity of Illinois Urbana-Champaign\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-galread-galacticextragalactic-reading-group-129\n
 \nEach week\, we hold a relatively informal seminar/discussion series\nwit
 h an emphasis on extra-galactic and large-scale structure\nastrophysics.\n
 \nDuring Galread a leader/visitor presents a recent paper to the\ndiscussi
 on group. The PDF of the paper is projected onto a large\nscreen\, and a g
 uest explains the paper\, section by section\, in greater\ndetail than may
  be explained within the text of the article. To aid\nwith discussion\, on
 ly the article PDF is presented -- no\npowerpoint-style slides. Galread di
 scussions are very friendly and\ninteractive.
DTSTART:20260327T150000Z
DTEND:20260327T160000Z
LAST-MODIFIED:20260323T132404Z
LOCATION:Zoom and Peyton Hall\, Grand Central
SUMMARY:Princeton University Galread [Galactic/Extragalactic Reading Group]
URL:https://www.ias.edu/sns/events/princeton-university-galread-galacticext
 ragalactic-reading-group-129
END:VEVENT
BEGIN:VEVENT
UID:ffb736ef-c156-4319-bd2e-9561c7b84020-0
DTSTAMP:20260413T074233Z
CREATED:20260323T132453Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-astroplasmas-seminar-103
DTSTART:20260327T163000Z
DTEND:20260327T173000Z
LAST-MODIFIED:20260323T132509Z
LOCATION:Dome Room\, Peyton Hall or Zoom
SUMMARY:Princeton University Astroplasmas Seminar
URL:https://www.ias.edu/sns/events/princeton-university-astroplasmas-semina
 r-103
END:VEVENT
BEGIN:VEVENT
UID:8e7ce219-3a47-4d15-819d-495c8053bd07-0
DTSTAMP:20260413T074233Z
CREATED:20260330T132651Z
DESCRIPTION:Topic: DESI-1 and DESI-2: informal update on the current status
 \n\nSpeakers: Martin White\, University of California\, Berkeley\n\nMore: 
 https://www.ias.edu/sns/events/princeton-university-seminar-survey-science
 -5\n\nI will discuss the current status of DESI-1\, some forecasts for the
 \nnext set of cosmological constraints from DESI and highlight the\nsouthe
 rn expansion of the footprint happening between now and December\n2028. Th
 en I will present the current plans for DESI-2\, which is being\nproposed 
 as a 6yr continuation of the DESI experiment starting in\n2029. I will giv
 e details of the survey's components\, and its\ninterplay with other exper
 iments such as Rubin and the Simon's\nObservatory.
DTSTART:20260330T150000Z
DTEND:20260330T160000Z
LAST-MODIFIED:20260330T132809Z
LOCATION:Zoom and Peyton Dome Room
SUMMARY:Princeton University Seminar in Survey Science
URL:https://www.ias.edu/sns/events/princeton-university-seminar-survey-scie
 nce-5
END:VEVENT
BEGIN:VEVENT
UID:5cca0894-e53c-4a43-b00d-225b6ce8ee09-0
DTSTAMP:20260413T074233Z
CREATED:20260127T112812Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-extrasolar-planet-discussion-group-161
DTSTART:20260330T160000Z
DTEND:20260330T170000Z
LAST-MODIFIED:20260127T112829Z
LOCATION:Zoom and Peyton Dome Rm\, Princeton University
SUMMARY:Princeton University Extrasolar Planet Discussion Group
URL:https://www.ias.edu/sns/events/princeton-university-extrasolar-planet-d
 iscussion-group-161
END:VEVENT
BEGIN:VEVENT
UID:0d070231-263f-4ce4-bd9c-013491122f0c-0
DTSTAMP:20260413T074233Z
CREATED:20260122T174105Z
DESCRIPTION:Topic: On the uniqueness of Kerr-de Sitter\n\nSpeakers: Allen F
 ang\, University of Muenster\n\nMore: https://www.ias.edu/sns/events/princ
 eton-university-gravity-initiative-seminar-14\n\nABSTRACT: The uniqueness 
 of the Kerr-de Sitter family of  black hole\nspacetimes as stationary solu
 tions to the Einstein vacuum equations\nis a crucial ingredient to underst
 anding the final states of positive\ncosmological constant universes\, suc
 h as our physical universe. In the\nasymptotically flat case\, Kerr was sh
 own to be the unique analytic\nstationary solution to the Einstein vacuum 
 equations via a\ncombination of results by Hawking\, Carter\, and Robinson
 . Outside of\nanalyticity\, Alexakis\, Ionescu\, and Klainerman showed sev
 eral\nconditional C^\infty rigidity results for Kerr. In this talk\, I wil
 l\ndiscuss some recent work in the spirit of Alexakis\, Ionescu\, and\nKla
 inerman showing the uniqueness of the stationary region of Kerr-de\nSitter
  within the smooth class of stationary solutions to the Einstein\nvacuum e
 quations with a positive cosmological constant. 
DTSTART:20260330T163000Z
DTEND:20260330T173000Z
LAST-MODIFIED:20260226T190132Z
LOCATION:Jadwin Hall\, Princeton Gravity Initiative\, 4th Floor
SUMMARY:Princeton University Gravity Initiative Seminar
URL:https://www.ias.edu/sns/events/princeton-university-gravity-initiative-
 seminar-14
END:VEVENT
BEGIN:VEVENT
UID:78068551-4029-4772-ae67-9f4d7ed6345d-0
DTSTAMP:20260413T074233Z
CREATED:20260313T150349Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-sfir-star-formationism-rendezvous-20
DTSTART:20260330T190000Z
DTEND:20260330T200000Z
LAST-MODIFIED:20260330T132926Z
LOCATION:Peyton Dome Rm
SUMMARY:Princeton University SFIR: Star Formation/ISM Rendezvous
URL:https://www.ias.edu/sns/events/princeton-university-sfir-star-formation
 ism-rendezvous-20
END:VEVENT
BEGIN:VEVENT
UID:7dfbc7ce-e5ef-4b9e-98f7-af150f758a6d-0
DTSTAMP:20260413T074233Z
CREATED:20260127T114725Z
DESCRIPTION:Topic: General discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-computational-astrophysics-club-70
DTSTART:20260331T180000Z
DTEND:20260331T190000Z
LAST-MODIFIED:20260127T114735Z
LOCATION:Peyton Hall\, Grand Central
SUMMARY:Princeton University Computational Astrophysics Club
URL:https://www.ias.edu/sns/events/princeton-university-computational-astro
 physics-club-70
END:VEVENT
BEGIN:VEVENT
UID:2b7ebbdc-19e4-442f-9a3c-bb26ab5b90fe-0
DTSTAMP:20260413T074233Z
CREATED:20260122T174214Z
DESCRIPTION:Topic: Connecting Dense Matter to Astrophysical Compact Objects
 \n\nSpeakers: Isaac Legred\, University of Illinois Urbana-Champaign\n\nMo
 re: https://www.ias.edu/sns/events/princeton-university-gravity-initiative
 -seminar-19\n\nABSTRACT: Neutron stars and black holes represent the inevi
 table\nendpoints of stellar evolution for high-mass stars. Despite the\nap
 parent fine-tuning of the physical conditions necessary to produce\nthem\,
  neutron stars are abundant in the Galaxy. On the other hand\,\nground-bas
 ed gravitational-wave detectors have revealed a sizeable\npopulation of bl
 ack holes distributed throughout the universe.  In\nthis talk\, I will dis
 cuss how understanding the dense-matter equation\nof state provides insigh
 t into the astrophysical processes that form\ncompact objects\, even when 
 our only access to these processes is\nthrough forensic clues. As part of 
 this\, I will show how simultaneous\nmodeling of both the dense-matter equ
 ation of state and the\nastrophysical distribution of compact objects is e
 ssential in the era\nof data-driven astrophysics.  Finally\, I will specul
 ate that we may\nbe close to understanding the origin of “typical” neutron
  star and\nblack hole masses\, but that the details of extreme matter phys
 ics are\nlikely encoded in the full spectrum of compact objects.
DTSTART:20260406T163000Z
DTEND:20260406T173000Z
LAST-MODIFIED:20260403T133318Z
LOCATION:Jadwin Hall\, Princeton Gravity Initiative\, 4th Floor
SUMMARY:Princeton University Gravity Initiative Seminar
URL:https://www.ias.edu/sns/events/princeton-university-gravity-initiative-
 seminar-19
END:VEVENT
BEGIN:VEVENT
UID:3ea09d36-73bd-4ac1-ba80-5b9931cf699f-0
DTSTAMP:20260413T074233Z
CREATED:20260313T150441Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-sfir-star-formationism-rendezvous-21
DTSTART:20260406T190000Z
DTEND:20260406T200000Z
LAST-MODIFIED:20260313T150457Z
LOCATION:Peyton Dome Rm
SUMMARY:Princeton University SFIR: Star Formation/ISM Rendezvous
URL:https://www.ias.edu/sns/events/princeton-university-sfir-star-formation
 ism-rendezvous-21
END:VEVENT
BEGIN:VEVENT
UID:b90f3040-e8ad-4317-9969-e86f6daaebfd-0
DTSTAMP:20260413T074233Z
CREATED:20260326T145955Z
DESCRIPTION:Topic: Low-Mass Galaxies as Probes of Dark Matter Physics\n\nSp
 eakers: Niusha Ahvazi\, University of Virginia\n\nMore: https://www.ias.ed
 u/sns/events/princeton-university-dark-cosmos-seminar-47\n\nAbstract: Dwar
 f galaxies\, despite (or perhaps because of) their small\nmasses\, are puz
 zles that challenge prevailing cosmological models. As\nthe most common ga
 laxies in the universe\, they offer a powerful window\ninto studying dark 
 matter on the smallest scales. However\, basic\nquestions around how they 
 form and evolve still remain: How sensitive\nare these systems to the unde
 rlying nature of dark matter? And how do\nobservational limits shape what 
 we can actually detect? In this talk\,\nI will explore how we connect theo
 ry to observation using\nsemi-analytic models to populate dark matter halo
 s with galaxies\,\nwhere these models succeed\, and where their limitation
 s begin to\nmatter. I will also discuss efforts to move beyond cold dark m
 atter\,\nand what observable signatures may emerge. Finally\, I will place
 \nsatellite galaxies in a broader context by comparing them in different\n
 environments and by linking them to other probes\, such as\ngravitational 
 lensing. Together\, these approaches push dark matter\nconstraints to the 
 smallest accessible scales.
DTSTART:20260407T200000Z
DTEND:20260407T213000Z
LAST-MODIFIED:20260331T160424Z
LOCATION:Jadwin Hall\, Joe Henry Room
SUMMARY:Princeton University Dark Cosmos Seminar
URL:https://www.ias.edu/sns/events/princeton-university-dark-cosmos-seminar
 -47
END:VEVENT
BEGIN:VEVENT
UID:33b92847-5d86-44cb-bda2-34c1d7dd4029-0
DTSTAMP:20260413T074233Z
CREATED:20260323T184857Z
DESCRIPTION:Topic: The Search for Axion Dark Matter\n\nSpeakers: Benjamin S
 afdi\, University of California\, Berkeley\n\nMore: https://www.ias.edu/sn
 s/events/princeton-university-donald-r-hamilton-colloquium-series-36\n\nAB
 STRACT: Axions are some of the best-motivated beyond the Standard\nModel p
 article candidates at present. These ultralight particles may\naccount for
  the cosmological dark matter and explain other\noutstanding problems in n
 ature\, such as the strong-CP problem\; they\nalso are now known to emerge
  generically in string\ntheory.  Axions are expected to couple ultra-weakl
 y with ordinary\nmatter\, which complicates their detection. However\, tha
 nks to recent\ntheoretical\, experimental\, and observational progress the
 se particles\nmay be discovered or ruled out within the near future. I wil
 l review\nsome of the recent ideas that may soon play a role in axion disc
 overy\,\nincluding computing the evolution of axions in the early universe
 \nusing supercomputers and novel observational signatures of axions that\n
 emerge in extreme astrophysical environments such as supernovae.
DTSTART:20260409T200000Z
DTEND:20260409T210000Z
LAST-MODIFIED:20260323T185102Z
LOCATION:Jadwin Hall A-10
SUMMARY:Princeton University Donald R. Hamilton Colloquium Series
URL:https://www.ias.edu/sns/events/princeton-university-donald-r-hamilton-c
 olloquium-series-36
END:VEVENT
BEGIN:VEVENT
UID:c6d7a42a-531e-4d82-895c-480eb9080768-0
DTSTAMP:20260413T074233Z
CREATED:20260122T174331Z
DESCRIPTION:Topic: Instabilities of near-extremal black branes\n\nSpeakers:
  Alex Buchel\,  Western Ontario University\n\nMore: https://www.ias.edu/sn
 s/events/princeton-university-gravity-initiative-seminar-18\n\nABSTRACT: E
 xtremal horizons (and associated emergent quantum\ncriticality of the corr
 esponding holographic models) receive strong\nquantum corrections at very 
 low temperatures.  We point out that when\nsuch models are embedded in top
 -down holography\, extremal horizons can\nsuffer from classical instabilit
 ies way before quantum effects become\nimportant. We present detailed anal
 ysis of the perturbative stability\nof the\nbaryonic black branes (in type
  IIB supergravity) and baryonic black\nmembranes (in M-theory).
DTSTART:20260413T163000Z
DTEND:20260413T173000Z
LAST-MODIFIED:20260410T142743Z
LOCATION:Jadwin Hall\, Princeton Gravity Initiative\, 4th Floor
SUMMARY:Princeton University Gravity Initiative Seminar
URL:https://www.ias.edu/sns/events/princeton-university-gravity-initiative-
 seminar-18
END:VEVENT
BEGIN:VEVENT
UID:d808563d-3f02-445c-a8d3-43c525b82440-0
DTSTAMP:20260413T074233Z
CREATED:20260313T150503Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-sfir-star-formationism-rendezvous-22
DTSTART:20260413T190000Z
DTEND:20260413T200000Z
LAST-MODIFIED:20260313T150513Z
LOCATION:Peyton Dome Rm
SUMMARY:Princeton University SFIR: Star Formation/ISM Rendezvous
URL:https://www.ias.edu/sns/events/princeton-university-sfir-star-formation
 ism-rendezvous-22
END:VEVENT
BEGIN:VEVENT
UID:45fa1f40-8106-4e66-8e94-cdf3c397e43d-0
DTSTAMP:20260413T074233Z
CREATED:20260217T204938Z
DESCRIPTION:Topic: Simulating self-interacting dark matter with AREPO-2\n\n
 Speakers: Oliver Zier\, Center for Astrophysics | Harvard & Smithsonian\n
 \nMore: https://www.ias.edu/sns/events/princeton-university-dark-cosmos-se
 minar-45\n\nABSTRACT: Self-interacting dark matter (SIDM) is a well-motiva
 ted\nextension of ΛCDM that can alter the inner structure of haloes via\nc
 ollisional heat transport. It has been explored as a possible\nsolution to
  small-scale tensions such as the cusp--core problem. SIDM\ncan also produ
 ce dense dark substructures through gravothermal core\ncollapse\, potentia
 lly observable via perturbations to cold stellar\nstreams or through stron
 g gravitational lensing. In this talk\, I\npresent a new Monte-Carlo-based
  SIDM module for the moving-mesh code\nAREPO-2. The implementation uses (i
 ) a dedicated neighbour-search tree\nfor dark-matter particles and (ii) a 
 new hypercube-based communication\nscheme that naturally supports multiple
  scattering events per particle\nwithin a single timestep. Together\, thes
 e improvements yield a\nsubstantial speed-up compared to legacy SIDM imple
 mentations and bring\nthe runtime close to that of pure CDM simulations. F
 inally\, the module\nis designed to be easily extended to arbitrary two-bo
 dy dark-matter\ninteractions\, without requiring detailed knowledge of the
  underlying\nparallelisation scheme\, enabled by a simplified programming 
 interface.
DTSTART:20260414T200000Z
DTEND:20260414T213000Z
LAST-MODIFIED:20260410T143819Z
LOCATION:Jadwin Hall\, Joe Henry Room
SUMMARY:Princeton University Dark Cosmos Seminar
URL:https://www.ias.edu/sns/events/princeton-university-dark-cosmos-seminar
 -45
END:VEVENT
BEGIN:VEVENT
UID:9aa661ca-a3f2-4e91-bb84-8f0a1f60d4b5-0
DTSTAMP:20260413T074233Z
CREATED:20260226T190851Z
DESCRIPTION:Topic: The Statistical Physics of Flocks and Swarms\n\nSpeakers
 : Irene Giardina\, Sapienza University of Rome\n\nMore: https://www.ias.ed
 u/sns/events/princeton-university-donald-r-hamilton-lecture-2\n\nABSTRACT:
  Flocks and swarms are iconic examples of living matter\, in\nwhich motile
 \, interacting individuals give rise to emergent global\npatterns. Despite
  the complexity of their biological components\, these\ngroups obey robust
  statistical laws and can be described within a\nstatistical physics frame
 work. In this talk\, I will review our current\nunderstanding of these sys
 tems. Drawing on experimental evidence and\ntheoretical modeling\, I will 
 show how mutual interactions and\nself-propulsion combine to produce non-t
 rivial dynamics and\nlarge-scale out-of-equilibrium behavior. This analysi
 s helps explain\nthe mechanistic origin of efficient collective behavior i
 n living\ngroups and highlights new challenges for the statistical physics
  of\nbiological systems.
DTSTART:20260415T220000Z
DTEND:20260416T000000Z
LAST-MODIFIED:20260226T191037Z
LOCATION:McDonnell Hall\, A-02
SUMMARY:Princeton University Donald R. Hamilton Lecture
URL:https://www.ias.edu/sns/events/princeton-university-donald-r-hamilton-l
 ecture-2
END:VEVENT
BEGIN:VEVENT
UID:bba53e2f-2301-4531-98af-cbfca714a5eb-0
DTSTAMP:20260413T074233Z
CREATED:20260410T144621Z
DESCRIPTION:Topic: The Search for WIMP Dark Matter with Massive Liquid Xeno
 n Detectors\n\nSpeakers: Daniel Akerib\, Stanford University\n\nMore: http
 s://www.ias.edu/sns/events/princeton-university-dark-cosmos-seminar-49\n\n
 ABSTRACT: Dark Matter remains a profound mystery at the intersection\nof p
 article physics\, astrophysics\, and cosmology. While searches have\nmade 
 significant progress\, particularly for dark matter in the form\nWeakly In
 teracting Massive Particles\, or WIMPS\, dark matter has so far\nbeen obse
 rved solely through its gravitational effects. After touching\non the cosm
 ological and astrophysical underpinnings\, I will discuss\nthe experimenta
 l challenges in searching for WIMPs and how we are\nmeeting them a series 
 of massive liquid-xenon detectors. I will\ndiscuss the current status of o
 ur search using the LZ detector\, with a\nlook ahead to follow-on experime
 nts to push the sensitivity to smaller\ncross sections and masses. 
DTSTART:20260416T200000Z
DTEND:20260416T213000Z
LAST-MODIFIED:20260410T144805Z
LOCATION:Jadwin Hall\, Joe Henry Room
SUMMARY:Princeton University Dark Cosmos Seminar
URL:https://www.ias.edu/sns/events/princeton-university-dark-cosmos-seminar
 -49
END:VEVENT
BEGIN:VEVENT
UID:3efa02f8-a291-4701-ae5c-8ee1cc70462e-0
DTSTAMP:20260413T074233Z
CREATED:20260407T144840Z
DESCRIPTION:Topic: Progress towards the BKL Conjecture\n\nSpeakers: Warren 
 Li\, Stanford University\n\nMore: https://www.ias.edu/sns/events/princeton
 -university-gravity-initiative-seminar-23\n\nABSTRACT: Belinski\, Khalatni
 kov and Lifschitz\, or BKL for short\,\nproposed heuristics saying that a 
 generic (spacelike) singularity from\nthe Einstein equations is silent (me
 aning different spatial points\ndecouple near the singularity)\, oscillato
 ry / chaotic\, and unaffected\nby matter. In this talk\, we discuss severa
 l contributions towards the\nrigorous mathematical justification of their 
 heuristics\, and in\nparticular on why one can expect spatial decoupling e
 ven in the\npresence of nonlinear oscillatory behavior in time.
DTSTART:20260420T163000Z
DTEND:20260420T173000Z
LAST-MODIFIED:20260407T145004Z
LOCATION:Jadwin Hall\, Princeton Gravity Initiative\, 4th Floor
SUMMARY:Princeton University Gravity Initiative Seminar
URL:https://www.ias.edu/sns/events/princeton-university-gravity-initiative-
 seminar-23
END:VEVENT
BEGIN:VEVENT
UID:0e7367ba-963d-45a8-8754-45866d6f5605-0
DTSTAMP:20260413T074233Z
CREATED:20260313T150519Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-sfir-star-formationism-rendezvous-23
DTSTART:20260420T190000Z
DTEND:20260420T200000Z
LAST-MODIFIED:20260313T150536Z
LOCATION:Peyton Dome Rm
SUMMARY:Princeton University SFIR: Star Formation/ISM Rendezvous
URL:https://www.ias.edu/sns/events/princeton-university-sfir-star-formation
 ism-rendezvous-23
END:VEVENT
BEGIN:VEVENT
UID:11b34338-0ced-4ff8-a5b0-322774ccd3e4-0
DTSTAMP:20260413T074233Z
CREATED:20260326T151635Z
DESCRIPTION:Topic: TBA\n\nMore: https://www.ias.edu/sns/events/princeton-un
 iversity-dark-cosmos-seminar-48
DTSTART:20260421T200000Z
DTEND:20260421T213000Z
LAST-MODIFIED:20260326T151657Z
LOCATION:Jadwin Hall\, Joe Henry Room
SUMMARY:Princeton University Dark Cosmos Seminar
URL:https://www.ias.edu/sns/events/princeton-university-dark-cosmos-seminar
 -48
END:VEVENT
BEGIN:VEVENT
UID:55f2ed26-1b84-4c44-9cf4-2532f72d62b1-0
DTSTAMP:20260413T074233Z
CREATED:20260122T174534Z
DESCRIPTION:Topic: TBA\n\nSpeakers: Haoyu Zhang\, University of Southern Ca
 lifornia\n\nMore: https://www.ias.edu/sns/events/princeton-university-grav
 ity-initiative-seminar-22\n\nABSTRACT: 
DTSTART:20260427T163000Z
DTEND:20260427T173000Z
LAST-MODIFIED:20260122T174649Z
LOCATION:Jadwin Hall\, Princeton Gravity Initiative\, 4th Floor
SUMMARY:Princeton University Gravity Initiative Seminar
URL:https://www.ias.edu/sns/events/princeton-university-gravity-initiative-
 seminar-22
END:VEVENT
BEGIN:VEVENT
UID:bccfa7cb-fdd6-41c1-9dc5-8d3213cf939d-0
DTSTAMP:20260413T074233Z
CREATED:20260313T150540Z
DESCRIPTION:Topic: General Discussion\n\nMore: https://www.ias.edu/sns/even
 ts/princeton-university-sfir-star-formationism-rendezvous-24
DTSTART:20260427T190000Z
DTEND:20260427T200000Z
LAST-MODIFIED:20260313T150552Z
LOCATION:Peyton Dome Rm
SUMMARY:Princeton University SFIR: Star Formation/ISM Rendezvous
URL:https://www.ias.edu/sns/events/princeton-university-sfir-star-formation
 ism-rendezvous-24
END:VEVENT
END:VCALENDAR