Speaker
Jiaxin Han
(Shanghai Jiao Tong University)
Description
I will present a unified framework for understanding and deriving the many universal laws in the distribution and evolution of dark matter subhalos, across mass scales, redshifts and cosmologies. This framework stems from an extremely simple and intuitive picture that subhalos are accreted unbiasedly from the environment, relative to the accretion of smooth matter. Starting from this, we are able to derive analytically the universal spatial distribution, mass distribution, progenitor distribution and hierarchy distribution of subhalos, which can also be extended to different cosmologies including different dark matter particle types.
Primary author
Jiaxin Han
(Shanghai Jiao Tong University)
