English

Mildly boosted dark matter annihilation and reconciling indirect galactic signals

Cosmology and Nongalactic Astrophysics 2024-06-21 v1 High Energy Astrophysical Phenomena High Energy Physics - Phenomenology

Abstract

The galactic center excess is a possible non-gravitational observation of dark matter; however, the canonical dark matter model (thermal freeze-out) is in conflict with other gamma-ray observations, in particular those made of the Milky Way's satellite dwarf galaxies. Here we consider the effects of a two-component dark matter model which results in minimally boosted particles that must remain bound to their host galaxy in order to produce an observational signal. This leads to a signal that is heavily dependent on galactic scale and can help reconcile the differences in the galactic center and dwarf galaxy measurements under the dark matter paradigm.

Keywords

Cite

@article{arxiv.2406.13056,
  title  = {Mildly boosted dark matter annihilation and reconciling indirect galactic signals},
  author = {Steven J. Clark},
  journal= {arXiv preprint arXiv:2406.13056},
  year   = {2024}
}

Comments

6 pages, 3 figures