Astrophysics

Stellar and substellar companions are thought to play a crucial role in shaping the formation and migration of the inner planets. However, the 3D orbital architecture of these systems, including the mutual inclination between inner planets and outer...

Fast radio bursts (FRBs) are among the most intriguing mysteries in modern astronomy, with their origins remaining elusive even 17 years after their discovery. Theories explaining FRBs span a wide range, from catastrophic events to more persistent...

TBA

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 evolution of satellite galaxies is an unsolved problem in galaxy formation. Recent observations such as the SAGA and ELVES surveys find tension in HI contents and star formation of satellites around their central host galaxies when compared to...

Superradiant instabilities may create clouds of ultralight bosons around rotating black holes, forming so-called "gravitational atoms". In this talk, I will review a series of papers that study the effects of a binary companion’s presence. The...

Fast radio bursts are millisecond-duration pulses of cosmological origin that were discovered at West Virginia University in 2007. They show amazing promise as probes of the large-scale structure of the Universe and provide a new window into the...

Galaxies have grown significantly in size since the early Universe. While quiescent galaxies grow primarily through galaxy mergers, star-forming galaxies grow by accreting gas from their surroundings and forming new stars. Observations of star...

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.