Speaker
Xiaoyong Chu
(Institute of High Energy Physics, Vienna (A))
Description
This talk introduces a novel solution to astrophysical small-scale problems, (i.e. core/cusp and too-big-to-fail) by invoking a certain class of dark matter self-annihilating processes. Such processes lead to the formation of dark matter cores at late times by considerably reducing the inner mass density of dwarf-sized halos. An important aspect of this new solution is that the semi-annihilation effects are much more prominent in dwarf-sized halos than in the more massive halos that host galaxies and clusters, even if the corresponding cross sections are the same.
| Parallel Session | Dark Matter, Astroparticle Physics |
|---|
Primary author
Xiaoyong Chu
(Institute of High Energy Physics, Vienna (A))
Co-author
Dr
Camilo Garcia-Cely
(DESY)
