WIMP Dark Matter Searches in Reticulum II Using MeerKAT
astro-ph.CO, astro-ph.GA, astro-ph.HE
Submitted: 2026-03-06
Updated: 2026-09-06
Journal ref: JCAP09(2026)034
DOI: 10.1088/1475-7516/2026/09/034
Project page: https://ratt-ru.github.io/breizorro
License: http://creativecommons.org/licenses/by/4.0/
The gist: In the last decade radio astronomy has emerged as a powerful technique for detecting signatures of Weakly Interacting Massive Particles (WIMPs).
Terminology
Abstract
In the last decade radio astronomy has emerged as a powerful technique for detecting signatures of Weakly Interacting Massive Particles (WIMPs). Dwarf spheroidal galaxies (dSphs) are particularly promising targets for these searches due to their substantial dark matter (DM) dominance and minimal baryonic background emission. In this study, we utilize the exceptional sensitivity of the MeerKAT radio telescope to search for synchrotron emission from WIMP annihilation/decay in the nearby Reticulum II dSph. Through rigorous data reduction and self-calibration, we establish constraints on WIMP properties that improve upon previous radio studies, demonstrating the potential of MeerKAT and next-generation radio telescopes in exploring increasing swathes of the WIMP parameter space.
Sources
- Africanus IV. The Stimela2 framework: scalable and reproducible workflows, from local to cloud compute
- A radio-frequency search for WIMPs in RXC J0225.1-2928
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