Astrophysics

For the first time, the entire visible sky is being surveyed for the violent, variable, and transient events that shape our universe by the All-Sky Automated Survey for Supernovae (ASAS-SN). Combined, ASAS-SN, Asteroid Terrestrial-impact Last Alert...

Abstract: Gravitational waves provide a unique observational handle on the properties of strong, dynamical gravity. Black hole ringdowns, in particular, cleanly encode information about the structure of black holes, allowing us to test fundamental...

With dedicated exoplanet surveys underway for multiple extreme precision radial velocity (EPRV) instruments, such as the Terra Hunting Experiment on HARPS-3, the near-future prospects of RV exoplanet science are promising. These surveys' generous...

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 standard magnetorotational instability (SMRI) has been regarded as the most promising instability responsible for the turbulence required to explain the fast accretion observed across the Universe. However, unlike other fundamental plasma...

RESCHEDULED to Friday, October 28

Galaxy formation in the first billion years mark a time of great upheaval in our cosmic history: the first sources of light in the Universe, these galaxies ended the 'cosmic dark ages' and produced the first...

Abstract: I will recall steps taken here at Princeton that led from the schematic physics of the cosmology I encountered in the mid-1960s to the present well-tested LCDM theory, and offer some lessons from the past on the future of research in...

The physics of a magnetically confined, radiation pressure supported column of plasma plays a defining role in understanding the observations of accretion-powered X-ray pulsars, including pulsating ultraluminous X-ray sources (ULXs). Near the...