Institute: MPI für Physik     Collection: YB 2016     Display Documents

ID: 716515.0, MPI für Physik / YB 2016
Searching for Dark Matter Annihilation from Milky Way Dwarf Spheroidal Galaxies with Six Years of Fermi-LAT Data
Authors:Fermi-LAT Collaboration
Date of Publication (YYYY-MM-DD):2015
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys.Rev.Lett.
Issue / Number:115
Start Page:231301
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:The dwarf spheroidal satellite galaxies (dSphs) of the Milky Way are some of the most dark matter (DM) dominated objects known. We report on gamma-ray observations of Milky Way dSphs based on 6 years of Fermi Large Area Telescope data processed with the new Pass 8 event-level analysis. None of the dSphs are significantly detected in gamma rays, and we present upper limits on the DM annihilation cross section from a combined analysis of 15 dSphs. These constraints are among the strongest and most robust to date and lie below the canonical thermal relic cross section for DM of mass $\\lesssim$ 100 GeV annihilating via quark and $\\tau$-lepton channels.
Classification / Thesaurus:Fermi
Comment of the Author/Creator:Accepted by PRL. 18 pages, 8 figures, 2 tables. Includes Supplementary Materials. Corresponding Authors: Brandon Anderson, Alex Drlica-Wagner, Matthew Wood
External Publication Status:published
Document Type:Article
Communicated by:MPI für Physik
Affiliations:
Identifiers:
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