Speaker
Zhaozhou Li
(Nanjing University)
Description
This talk presents a phase-space perspective on dark matter halo assembly and evolution. First, we show that large-scale environments shape the infall orbit distributions of subhalos, setting the initial conditions for halo assembly. Second, we demonstrate that the dynamical relaxation of accreted material gives rise to universal phase-space scaling relations and distribution functions. Finally, we present a novel phase-space approach to model halo responses to baryonic feedback, and show how it accounts for the formation of dark-matter-deficient galaxies.
Author
Zhaozhou Li
(Nanjing University)