Listening for Dark Photon Radio from the Galactic Centre

Hardy, Edward ORCID: 0000-0003-3263-6575 and Song, Ningqiang ORCID: 0000-0002-3590-2341 (2022) Listening for Dark Photon Radio from the Galactic Centre [Preprint]

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Abstract

Dark photon dark matter that has a kinetic mixing with the Standard Model photon can resonantly convert in environments where its mass $m_{A'}$ coincides with the plasma frequency. We show that such conversion in neutron stars or accreting white dwarfs in the galactic centre can lead to detectable radio signals. Depending on the dark matter spatial distribution, future radio telescopes could be sensitive to values of the kinetic mixing parameter that exceed current constraints by orders of magnitude for $m_{A'} \in \left(6\times 10^{-6},7\times 10^{-4}\right)$ eV.

Item Type:	Preprint
Additional Information:	27 pages, 9 figures, matched journal version
Uncontrolled Keywords:	hep-ph, hep-ph, astro-ph.CO
Divisions:	Faculty of Science & Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	06 Jan 2023 15:47
Last Modified:	09 Jan 2025 20:25
DOI:	10.48550/arxiv.2212.09756
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3166878
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