Pedro De la Torre Luque, Shyam Balaji, Joseph Silk
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Abstract
We demonstrate that the anomalous ionization rate observed in the Central Molecular Zone can be attributed to MeV dark matter annihilations into e+e− pairs for galactic dark matter profiles with slopes γ>1. The low annihilation cross sections required avoid cosmological constraints and imply no detectable inverse Compton, bremsstrahlung, or synchrotron emission in radio, x- and γ rays. The possible connection with the source of the unexplained 511 keV line emission in the Galactic Center suggests that both observations could be correlated and have a common origin. Published by the American Physical Society2025
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Physical review letters(PRL)covers the full range of applied, fundamental, and interdisciplinary physics research topics:
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