Astrophysics

The Bahcall Lunch follows the astrophysics colloquium lecture. 

Good estimations of stellar ages are important for a wide range of science cases, from understanding the evolution and habitability of exoplanetary systems to tracking back the cosmic history of our own and other galaxies. These ages, however, are...

We will present SLOW, the simulated cosmic volume (500 Mpc/h) that features the most extensive collection of Local Universe Galaxy Clusters ever replicated, accurately set within the appropriate large-scale framework. We will show current...

Abstract: The gravitational perturbations of a rotating Kerr black hole are notoriously complicated, even at the linear level. In 1973, Teukolsky showed that their physical degrees of freedom are encoded in two gauge-invariant Weyl curvature scalars...

Planets and satellites in mean-motion resonance offer a unique opportunity to probe complex effects of planet-disk interaction and tidal dissipation. I will first discuss how the orbit of Hyperion, a small satellite of Saturn, is inextricably...

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 habitability potential of planets in the circumstellar habitable zone (CHZ) of M-dwarf stars are of great interest because M-dwarf stars make up 75% of the population of stars in the galaxy, and >40% of M-dwarfs stars are expected to harbor exo...

Fast Radio Bursts (FRBs) are the milliseconds-duration radio bursts mainly originating from cosmological distances. The high brightness temperatures (~10^{36} K) implies the intrinsic emission mechanisms must be coherent. Observations show that most...