Mildly boosted dark matter annihilation and reconciling indirect galactic signals

Autor:	Clark, Steven J.
Rok vydání:	2024
Předmět:	Astrophysics - Cosmology and Nongalactic Astrophysics Astrophysics - High Energy Astrophysical Phenomena High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	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. Comment: 6 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2406.13056 Zobrazit plný text záznamu View this record from Arxiv