ALPs searches on galactic sources using the HAWC Observatory

Axion-like particles could be potential dark matter candidates, whose conversion from gamma rays could have an impact on the spectra of extremely powerful astronomical gamma-ray sources. For galactic sources, the overall result of this coupling may be reflected as an attenuation of the gamma-ray spectrum at energies above several tens of TeV. Therefore, multi-TeV observatories like the High Altitude Water Cherenkov (HAWC) Observatory would have a unique opportunity to investigate the parameters of ALPs candidates in the mass range from fractions of a neV up to tens of ¿eV. In this study, we present a preliminary study of the spectrum observed of the TeV gamma-ray source eHWC J1908+63, constraining the ALP coupling to better than 10¿12 GeV¿1 © Copyright owned by the author(s) under the terms of the Creative Commons.

ALPs searches on galactic sources using the HAWC Observatory Academic Article in Scopus