Astrophysics

The Bahcall Lunch follow the astrophysics colloquium lecture. Registration is required by 3pm the previous Friday so a meal can be provided. Please contact Amanda Cenker with questions.

AGN feedback is now widely considered to be one of the main drivers in regulating the growth of massive galaxies. In my talk I will describe several efforts in our group to understand the power, reach and impact of AGN feedback processes. We find...

The solar wind is a classic example of a turbulent plasma. At moderate scales (larger than ion-kinetic scales) turbulent fluctuations in the solar wind are often Alfvénic in character, meaning that their magnetic and flow velocity fluctuations are...

Abstract: I will discuss the symmetries of (linearized) gravity and its interpretation as a gapless phase arising from the structure of mixed anomalies of these symmetries.

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 1: The Simons Observatory Small Aperture Telescopes (SATs) employ a continuously rotating broadband half-wave plate (HWP) to access the primordial gravitational wave generated B-mode polarization signal at degree scales. I will provide a...

Cosmic ray (CR) protons with energy between 1-300GeV, which dominate the CR population, are believed to be self-confined, i.e. the CRs are scattered by the waves they generate. The end result is that they travel along the magnetic field lines at the...