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Searching for Dark Matter Annihilation from Milky Way Dwarf Spheroidal Galaxies with Six Years of Fermi Large Area Telescope Data

Ackermann, M.
•
Albert, A.
•
Anderson, B.
altro
Zimmer, S.
2015
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
Abstract
The dwarf spheroidal satellite galaxies (dSphs) of the Milky Way are some of the most dark matter (DM) dominated objects known. We report on γ -ray observations of Milky Way dSphs based on six years of Fermi Large Area Telescope data processed with the new Pass8 event-level analysis. None of the dSphs are significantly detected in γ 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 ≲100 GeV annihilating via quark and τ -lepton channels.
DOI
10.1103/PhysRevLett.115.231301
WOS
WOS:000365877500001
Archivio
http://hdl.handle.net/11368/2871705
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84949659887
http://harvest.aps.org/bagit/articles/10.1103/PhysRevLett.115.231301/apsxml
Diritti
open access
FVG url
https://arts.units.it/bitstream/11368/2871705/2/Searching for Dark Matter Annihilation from Milky Way Dwarf Spheroidal Galaxies with Six Years of Fermi Large Area Telescope Data.pdf
Soggetti
  • Physics and Astronomy...

  • Dark Matter

  • Gamma-ray Astrophysic...

Scopus© citazioni
761
Data di acquisizione
Jun 14, 2022
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Web of Science© citazioni
767
Data di acquisizione
Mar 13, 2024
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Data di acquisizione
Apr 19, 2024
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