Astrophysics

Since the revolutionary discovery of gravitational wave (GW) emission from a binary black hole merger in 2015, the remarkable GW detectors LIGO, Virgo and KAGRA have detected at least ninety compact object mergers. These events are transforming...

Abstract: The detection of Gravitational Waves (GWs) from binary black hole coalescences offers a powerful tool for exploring the strong-field regime of General Relativity (GR). To ensure the reliability of these tests, it is essential to identify...

The next generation of radio interferometric arrays, such as the SKA and HERA, will provide unprecedented 21 cm signal data, offering a promising probe across cosmic time, especially during the Epoch of Reionization (EoR). However, interpreting this...

The Bahcall Lunch follows the astrophysics colloquium lecture. Registration is required by 4pm the previous Thursday so a meal can be provided. Email Amanda at cenker@ias.edu with questions.

Quasars at cosmic dawn are powerful probes to the formation and growth of early supermassive black holes in the universe, their connections to high-redshift galaxy and structure formation, and the evolution of the intergalactic medium at the epoch...

Many theories of dark energy predict a time-varying dark energy density, in stark contrast to Einstein’s cosmological constant. Earlier this year, we saw the first hints of an observational preference for such dynamical theories. In this talk, I...

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...