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