Astrophysics

The Bahcall Lunch follow the astrophysics colloquium lecture. Registration is required by noon the previous Thursday so a meal can be provided.

Abstract: Astronomy's current model of galaxy evolution is built on a foundation of hierarchical growth, in which small galaxies merge together to form larger ones.  In addition to the simple accrual of mass, this merging process is predicted to...

Abstract: Belinski, Khalatnikov and Lifschitz, or BKL for short, proposed heuristics saying that a generic (spacelike) singularity from the Einstein equations is silent (meaning different spatial points decouple near the singularity), oscillatory /...

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...

Abstract: Dark Matter remains a profound mystery at the intersection of particle physics, astrophysics, and cosmology. While searches have made significant progress, particularly for dark matter in the form Weakly Interacting Massive Particles, or...

Astrophysical jets driven by black holes are thought to undergo kink instabilities due to the large current carried by such jets. Dissipation of magnetic energy through kink instabilities has been suggested to account for the high-energy radiation...

Abstract: Flocks and swarms are iconic examples of living matter, in which motile, interacting individuals give rise to emergent global patterns. Despite the complexity of their biological components, these groups obey robust statistical laws and...

Abstract: Self-interacting dark matter (SIDM) is a well-motivated extension of ΛCDM that can alter the inner structure of haloes via collisional heat transport. It has been explored as a possible solution to small-scale tensions such as the cusp-...