A Radio-Frequency Search for WIMPs in RXC J0225.1-2928

oleh: Michael Sarkis, Geoff Beck, Natasha Lavis

Format: Article
Diterbitkan: Andromeda Publishing and Academic Services 2023-03-01

Deskripsi

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.