3 papers
astro-ph.GA2026
Dancing Streams In Merging Halos: Stellar Streams in a MW--LMC-like merger
Sachi Weerasooriya, Tjitske Starkenburg, Emily C. Cunningham +1
Stellar streams -- formed from tidally stripped globular clusters or dwarf galaxies -- are sensitive tracers of a galaxy's accretion history and gravitational potential. While nume…
astro-ph.GA2026
DiffstarPop: A generative physical model of galaxy star formation history
Alex Alarcon, Andrew P. Hearin, Matthew R. Becker +3
We present DiffstarPop, a differentiable forward model of cosmological populations of galaxy star formation histories (SFH). In the model, individual galaxy SFH is parametrized by…
astro-ph.GA2026
The Curious Case of Centaurus A II: On the Subject of the Quenched satellites
Sachi Weerasooriya, Mia Sauda Bovill, Matthew A. Taylor +6
The satellite system of Centaurus A presents a curious cosmological puzzle: while the global population is consistent with theoretical expectations, its inner regions (d<150 kpc) e…