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arXiv · 1805.08780

Looking for Axion Dark Matter in Dwarf Spheroidals

Andrea Caputo·Carlos Peña Garay·Samuel J. Witte
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Abstract

We study the extent to which the decay of cold dark matter axions can be probed with forthcoming radio telescopes such as the Square Kilometer Array (SKA). In particular we focus on signals arising from dwarf spheroidal galaxies, where astrophysical uncertainties are reduced and the expected magnetic field strengths are such that signals arising from axion decay may dominate over axion-photon conversion in a magnetic field. We show that with $\sim100$ hours of observing time, SKA could improve current sensitivity by a factor of about five.

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Andrea Caputo, Carlos Peña Garay, Samuel J. Witte. 2019-03-14. Looking for Axion Dark Matter in Dwarf Spheroidals. https://doi.org/10.1103/physrevd.98.083024

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