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Volume 358 - 36th International Cosmic Ray Conference (ICRC2019) - DM - Dark Matter
A Search For Dark Matter Signals in the Galactic Halo with HAWC
J. Lundeen
Full text: pdf
Pre-published on: 2019 July 22
Published on:
Abstract
The High Altitude Water Cherenkov Observatory (HAWC) detector has conducted a series of searches for very-high energy gamma-ray signals originating from particle dark matter. HAWC's wide ($\approx$ 2 sr) field of view allows it to search for emission from extended objects such as the M31 galaxy, the Virgo Cluster, and a region of the Galactic Halo. The daily coverage of 2/3 of the sky of HAWC has been used to perform combined analyses of both the dwarf spheroidal and dwarf irregular galaxies. This archival data has also been used for a joint analysis of the dwarf spheroidal galaxies in combination with the Fermi-LAT, HESS, MAGIC and VERITAS experiments. New energy estimation algorithms have also enabled HAWC to search for and constrain gamma-ray line emission from dark matter. We will present the latest results from each of these dark matter analyses, which include some of the strongest limits on dark matter decay.
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