Heating up the Galaxy with Hidden Photons
High Energy Physics - Phenomenology
2018-10-19 v2 Cosmology and Nongalactic Astrophysics
Astrophysics of Galaxies
Abstract
We elaborate on the dynamics of ionized interstellar medium in the presence of hidden photon dark matter. Our main focus is the ultra-light regime, where the hidden photon mass is smaller than the plasma frequency in the Milky Way. We point out that as a result of the Galactic plasma shielding direct detection of ultra-light photons in this mass range is especially challenging. However, we demonstrate that ultra-light hidden photon dark matter provides a powerful heating source for the ionized interstellar medium. This results in a strong bound on the kinetic mixing between hidden and regular photons all the way down to the hidden photon masses of order eV.
Cite
@article{arxiv.1509.00039,
title = {Heating up the Galaxy with Hidden Photons},
author = {Sergei Dubovsky and Guzmán Hernández-Chifflet},
journal= {arXiv preprint arXiv:1509.00039},
year = {2018}
}
Comments
12 pages, 1 figure, figure corrected