Speaker
Description
I will review motivations for the existence of self interacting dark matter and discuss possible astrophysical observables.
Self-interactions of dark matter particles can potentially lead to an observable separation between the dark matter halo
and the stars of a galaxy moving through a region of large dark matter density. Such a separation has recently been
observed in a galaxy falling into the core of the galaxy cluster Abell 3827.
I discuss the DM self-interaction cross section needed to reproduce the observed effects.
Summary
I will review motivations for the existence of self interacting dark matter and discuss possible astrophysical observables.
Self-interactions of dark matter particles can potentially lead to an observable separation between the dark matter halo
and the stars of a galaxy moving through a region of large dark matter density. Such a separation has recently been
observed in a galaxy falling into the core of the galaxy cluster Abell 3827.
I discuss the DM self-interaction cross section needed to reproduce the observed effects.
