Astronomical transients are signposts of catastrophic events in space, including the most extreme stellar deaths, stellar tidal disruptions by supermassive black holes, and mergers of compact objects.
Tidal disruption events (TDEs) provide an exciting opportunity to study supermassive black holes in quiescent galaxies and the stellar populations and dynamics in galactic nuclei.
While our present picture for the formation of galactic disks can be largely traced to analytic ideas first explored in the 1980s, where a galactic disk’s angular momentum is tied to the angular momentum of its host dark matter halo, our understanding of galaxy disk formation remains incomplete.
Active galactic nuclei (AGN) driven feedback has been proposed to be one of the most efficient ways to quench star formation and help maintain quiescence in massive galaxies.
Betelgeuse's "Great Dimming" in the winter of 2020 quickly became a source of fascination for both professional and amateur astronomers.
