Constraints on light decaying dark matter candidates from 16 years of INTEGRAL/SPI observations

Autor:	Calore, Francesca, Dekker, Ariane, Serpico, Pasquale Dario, Siegert, Thomas
Rok vydání:	2022
Předmět:	High Energy Physics - Phenomenology Astrophysics - Cosmology and Nongalactic Astrophysics Astrophysics - High Energy Astrophysical Phenomena
Zdroj:	Mon.Not.Roy.Astron.Soc. 520 (2023) 3, 4167-4172
Druh dokumentu:	Working Paper
DOI:	10.1093/mnras/stad457
Popis:	We apply the recently developed analysis of 16 years of INTEGRAL/SPI data including a dark matter spatial template to derive bounds on dark matter candidates lighter than WIMPs (like sterile neutrinos or axion-like particles) decaying into line or continuum electromagnetic final state channels. The bounds obtained are the strongest to date for dark matter masses between $\sim $60 keV and $\sim$16 MeV experiencing two-body decays producing photon lines. Comment: 6 pages, 5 figures. Version accepted for publication in MNRAS. Code and supplementary material available at https://zenodo.org/record/7984451
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2209.06299 Zobrazit plný text záznamu View this record from Arxiv