Fermi Large Area Telescope Search for Photon Lines from 30 to 200 GeV and Dark Matter Implications
2010 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 104, no 9, 091302- p.Article in journal (Refereed) Published
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.
MILKY-WAY HALO, NEUTRALINO ANNIHILATION, OBSERVABILITY, QUARKONIUM, RAYS, MASS
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:kth:diva-28678DOI: 10.1103/PhysRevLett.104.091302ISI: 000275252500009ScopusID: 2-s2.0-77749233995OAI: oai:DiVA.org:kth-28678DiVA: diva2:390847
FunderKnut and Alice Wallenberg FoundationSwedish Research Council
QC 201101242011-01-242011-01-192011-01-24Bibliographically approved