Astrophysics

The centers of massive galaxies are special in many ways, not least because apparently all of them host supermassive black holes. Since the discovery of a number of relations linking the mass of this central black hole to the large scale properties...

Abstract: This talk will concern the interaction problem in General Relativity in a specific setting. More precisely, we will describe a research program aimed at a rigorous understanding of the interaction of gravitational waves originating from...

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...

The astronomer Carl Sagan once said “We are made of stardust.” What exactly did he mean? And how, in fact, did we come to be in the Universe? Today, we will take a journey from the Big Bang to the present to answer these questions. Of course, many...

TBA

Abstract: There has been exciting recent progress in the study of the quantum nature of black holes through the use of certain exactly solvable models. This work shows how to realize, in concrete terms, various long-held expectations about quantum...

Tidal disruption events (TDEs) provide an exciting opportunity to study supermassive black holes (SMBHs) in quiescent galaxies and the stellar populations and dynamics in galactic nuclei. They test the limits of black hole accretion by regularly...