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.
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