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arXiv · 1604.06267

Updated galactic radio constraints on Dark Matter

Marco Cirelli·Marco Taoso
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Abstract

We perform a detailed analysis of the synchrotron signals produced by Dark Matter annihilations and decays. We consider different set-ups for the propagation of electrons and positrons, the galactic magnetic field and Dark Matter properties. We then confront these signals with radio and microwave maps, including Planck measurements, from a frequency of 22 MHz up to 70 GHz. We derive two sets of constraints: conservative and progressive, the latter based on a modeling of the astrophysical emission. Radio and microwave constraints are complementary to those obtained with other indirect detection methods, especially for dark matter annihilating into leptonic channels.

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Marco Cirelli, Marco Taoso. 2016-04-21. Updated galactic radio constraints on Dark Matter. https://doi.org/10.1088/1475-7516%2F2016%2F07%2F041

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