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Spectral analysis of the gamma-ray background near the dwarf MilkyWay satellite Segue 1: Improved limits on the cross section of neutralino dark matter annihilation

  • The indirect detection of dark matter requires that dark matter annihilation products be discriminated from conventional astrophysical backgrounds. Here, we re-analyze GeV-band gamma-ray observations of the prominent Milky Way dwarf satellite galaxy Segue 1, for which the expected astrophysical background is minimal. We explicitly account for the angular extent of the conservatively expected gamma-ray signal and keep the uncertainty in the dark-matter profile external to the likelihood analysis of the gamma-ray data.

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Author details:Anton N. Baushev, S. Federici, M. Pohl
DOI:https://doi.org/10.1103/PhysRevD.86.063521
ISSN:1550-7998
Title of parent work (English):Physical review : D, Particles, fields, gravitation, and cosmology
Publisher:American Physical Society
Place of publishing:College Park
Publication type:Article
Language:English
Year of first publication:2012
Publication year:2012
Release date:2017/03/26
Volume:86
Issue:6
Number of pages:7
Funding institution:Bundesministerium fur Bildung und Forschung through DESY-PT [05A11IPA]; Helmholtz Alliance for Astroparticle Physics HAP; Initiative and Networking Fund of the Helmholtz Association; National Aeronautics and Space Administration; Department of Energy in the United States; Commissariat a l'Energie Atomique; Centre National de la Recherche Scientifique/Institut National de Physique Nucleaire et de Physique des Particules in France; Agenzia Spaziale Italiana; Istituto Nazionale di Fisica Nucleare in Italy; Ministry of Education, Culture, Sports, Science and Technology (MEXT); High Energy Accelerator Research Organization (KEK); Japan Aerospace Exploration Agency (JAXA) in Japan; K. A. Wallenberg Foundation; Swedish Research Council; Swedish National Space Board in Sweden; Istituto Nazionale di Astrofisica in Italy; Centre National d'Etudes Spatiales in France
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
Peer review:Referiert
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