Astrophysics

Intrinsic-Alignments are one of the main systematic effects hindering the robust interpretation of weak-lensing measurements. In this talk I will describe several works by which my collaborators and I advance the modelling and understanding of IA in...

Abstract: Based on https://arxiv.org/abs/2408.11139(Link is external) (Link opens in new window) . In pure Einstein gravity, the amplitude for an arbitrary number of positive helicity gravitons to scatter is zero at tree-level. If a single negative...

Both solar system studies and exoplanet science focus on the same class of objects: planetary bodies. Thus, rich synergies between these disciplines can advance our knowledge of fundamental planetary processes. In this talk, I will present new...

Carlos Sierra, Stanford University

"SPECTER: a new instrument concept for measuring the CMB spectral distortions"

The standard cosmological model predicts deviations from a perfect blackbody spectrum in the cosmic microwave background (CMB). A precise...

Each week, we hold a relatively informal seminar/discussion series with an emphasis on extra-galactic and large-scale structure astrophysics.

During Galread a leader/visitor presents a recent paper to the discussion group. The PDF of the paper is...

Abstract: When electrons are forced to interact strongly with each other, some of the most exotic electronic phases and novel quasiparticles may emerge. A key approach to force electrons to strongly interact with one another is to confine them to...

One of the unsolved problems in extragalactic astronomy is understanding the physics of how the most distant massive galaxies grow their stellar mass over cosmic time. Large-scale hydrodynamical simulations have been largely successful in matching...

In this talk I will review the current state of and future prospects for exoplanet demographics. I will walk through the latest understanding of the frequency of Earth-like planets from Kepler, and their implications for NASA’s next flagship mission...

The NASA Parker Solar Probe (PSP) mission was launched in 2018 and has made 20 orbits of the Sun with perihelion altitudes down to 10.3 solar radii. After a Venus Gravity Assist in November of this year, perihelion will reach 8.8 solar radii above...