Astrophysics

Abstract: The growing catalog of gravitational-wave signals from compact object mergers has allowed us to study the properties of black holes and neutron stars more precisely than ever before and has opened a new window through which to probe the...

I will present a new mechanism of generating large planetary eccentricities. This mechanism applies to planets within the inner cavities of their companion protoplanetary disks. A massive disk with an inner truncation may become eccentric due to non...

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...

In magnetically confined fusion devices, enhanced particle and energy transport induced by magnetohydrodynamic (MHD) fluctuations can deteriorate the plasma confinement and endanger the integrity of the device. One of the most prominent MHD...

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.