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Fermi Large Area Telescope Search for Photon Lines from 30 to 200 GeV and Dark Matter Implications
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2010 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 104, no 9, 091302- p.Article in journal (Refereed) Published
Abstract [en]

Dark matter (DM) particle annihilation or decay can produce monochromatic gamma rays readily distinguishable from astrophysical sources. gamma- ray line limits from 30 to 200 GeV obtained from 11 months of Fermi Large Area Space Telescope data from 20-300 GeV are presented using a selection based on requirements for a gamma-ray line analysis, and integrated over most of the sky. We obtain gamma-ray line flux upper limits in the range 0.6-4.5 x 10(-9) cm(-2) s(-1), and give corresponding DM annihilation cross-section and decay lifetime limits. Theoretical implications are briefly discussed.

Place, publisher, year, edition, pages
2010. Vol. 104, no 9, 091302- p.
Keyword [en]
MILKY-WAY HALO, NEUTRALINO ANNIHILATION, OBSERVABILITY, QUARKONIUM, RAYS, MASS
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-28678DOI: 10.1103/PhysRevLett.104.091302ISI: 000275252500009Scopus ID: 2-s2.0-77749233995OAI: oai:DiVA.org:kth-28678DiVA: diva2:390847
Funder
Knut and Alice Wallenberg FoundationSwedish Research Council
Note
QC 20110124Available from: 2011-01-24 Created: 2011-01-19 Last updated: 2017-12-11Bibliographically approved

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