A radio-frequency search for WIMPs in RXC J0225.1-2928

Autor:	Sarkis, Michael, Beck, Geoff, Lavis, Natasha
Rok vydání:	2023
Předmět:	Astrophysics - High Energy Astrophysical Phenomena Astrophysics - Cosmology and Nongalactic Astrophysics
Druh dokumentu:	Working Paper
Popis:	Recent studies focusing on the use of radio data in indirect dark matter detection have led to a set of highly competitive limits on the WIMP annihilation cross-section, especially in light of high-resolution data from instruments like ASKAP and MeerKAT. In this work we present an analysis of radio observations of the RXC J0225.1-2928 galaxy cluster, taken from the recent MeerKAT Galaxy Cluster Legacy Survey public data release. We adopt a robust morphological analysis of this source that allows us to derive a set of upper-limits on the annihilation cross-section, and in our most constraining scenario these results are comparable to the most stringent limits yet found in the literature. Comment: 4 pages, 2 figures, to be published in LHEP Special Issue on Neutrinos and Dark Matter-2022
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2303.00684 Zobrazit plný text záznamu View this record from Arxiv