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Dark Matter Limits From Dwarf Spheroidal Galaxies with The HAWC Gamma-Ray Observatory
- Source :
- Astrophysical Journal, NASA Astrophysics Data System
- Publication Year :
- 2017
- Publisher :
- arXiv, 2017.
-
Abstract
- The High Altitude Water Cherenkov (HAWC) gamma-ray observatory is a wide field of view observatory sensitive to 500 GeV - 100 TeV gamma rays and cosmic rays. It can also perform diverse indirect searches for dark matter (DM) annihilation and decay. Among the most promising targets for the indirect detection of dark matter are dwarf spheroidal galaxies. These objects are expected to have few astrophysical sources of gamma rays but high dark matter content, making them ideal candidates for an indirect dark matter detection with gamma rays. Here we present individual limits on the annihilation cross section and decay lifetime for 15 dwarf spheroidal galaxies within the HAWC field-of-view, as well as their combined limit. These are the first limits on the annihilation cross section and decay lifetime using data collected with HAWC.<br />Comment: 18 pages, 6 figures, 2 tables
- Subjects :
- Physics
HAWC - Abteilung Hinton
High Energy Astrophysical Phenomena (astro-ph.HE)
Annihilation
010308 nuclear & particles physics
Astrophysics::High Energy Astrophysical Phenomena
Dark matter
Gamma ray
FOS: Physical sciences
Astronomy and Astrophysics
Cosmic ray
Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
01 natural sciences
Wide field
Galaxy
High Energy Physics - Phenomenology
High Energy Physics - Phenomenology (hep-ph)
Space and Planetary Science
Observatory
0103 physical sciences
Astrophysics - High Energy Astrophysical Phenomena
010303 astronomy & astrophysics
Cherenkov radiation
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Astrophysical Journal, NASA Astrophysics Data System
- Accession number :
- edsair.doi.dedup.....a65afba99284e5ae0138556118b42daa
- Full Text :
- https://doi.org/10.48550/arxiv.1706.01277