Search for TeV gamma ray emission from the Andromeda galaxy

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dc.creatorthe HEGRA Collaboration
dc.creatorAharonian, F.
dc.date2003-02-18
dc.date.accessioned2026-07-07T11:08:11Z
dc.date.available2026-07-07T11:08:11Z
dc.descriptionUsing the HEGRA system of imaging atmospheric Cherenkov telescopes, the Andromeda galaxy (M31) was surveyed for TeV gamma ray emission. Given the large field of view of the HEGRA telescopes, three pointings were sufficient to cover all of M31, including also M32 and NGC205. No indications for point sources of TeV gamma rays were found. Upper limits are given at a level of a few percent of the Crab flux. A specific search for monoenergetic gamma-ray lines from annihilation of supersymmetric dark matter particles accumulating near the center of M31 resulted in flux limits in the 10^-13/cm^2s range, well above the predicted MSSM flux levels except for models with pronounced dark-matter spikes or strongly enhanced annihilation rates.
dc.descriptionLatex, 7 pages, 4 Figures, submitted to A&A
dc.identifierhttps://arxiv.org/abs/astro-ph/0302347
dc.identifierhttp://arxiv.org/abs/astro-ph/0302347
dc.identifierAstron.Astrophys.400:153-159,2003
dc.identifierdoi:10.1051/0004-6361:20021895
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190048
dc.subjectAstrophysics
dc.titleSearch for TeV gamma ray emission from the Andromeda galaxy
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