A new method to constrain annihilating dark matter
arXiv:2306.02536 · doi:10.1093/mnrasl/slad072
Abstract
Recent indirect searches of dark matter using gamma-ray, radio, and cosmic-ray data have provided some stringent constraints on annihilating dark matter. In this article, we propose a new indirect method to constrain annihilating dark matter. By using the data of the G2 cloud near the Galactic supermassive black hole Sgr A*, we can get stringent constraints on the parameter space of dark matter mass and the annihilation cross section, especially for the non-leptophilic annihilation channels and . For the thermal annihilation cross section, the lower bounds of dark matter mass can be constrained up to TeV order for the non-leptophilic channels with the standard spike index .
arXiv commentAccepted in MNRAS Letters
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