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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; Atwood, W B; Baldini, L; Barbiellini, G; Bastieri, D; Bechtol, K; Bellazzini, R; Bissaldi, E; Blandford, R D; Bloom, E D; Bonino, R; Bottacini, E; Brandt, T J; Bregeon, J; Bruel, P; Buehler, R; Caliandro, G A; Cameron, R A; Caputo, R; Caragiulo, M; Caraveo, P A; Cecchi, C; Charles, E; Chekhtman, A; Chiang, J; Chiaro, G; Ciprini, S; Claus, R; Cohen-Tanugi, J; Conrad, J; Cuoco, A; Cutini, S; D'Ammando, F; de Angelis, A; de Palma, F; Desiante, R; Digel, S W; Di Venere, L; Drell, P S; Drlica-Wagner, A; Essig, R; Favuzzi, C; Fegan, S J; Ferrara, E C; Focke, W B; Franckowiak, A; Fukazawa, Y; Funk, S.
Affiliation
  • Ackermann M; Deutsches Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
  • Albert A; W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94305, USA.
  • Anderson B; Department of Physics, Stockholm University, AlbaNova, SE-106 91 Stockholm, Sweden.
  • Atwood WB; The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova, SE-106 91 Stockholm, Sweden.
  • Baldini L; Santa Cruz Institute for Particle Physics, Department of Physics and Department of Astronomy and Astrophysics, University of California at Santa Cruz, Santa Cruz, California 95064, USA.
  • Barbiellini G; W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94305, USA.
  • Bastieri D; Università di Pisa and Istituto Nazionale di Fisica Nucleare, Sezione di Pisa I-56127 Pisa, Italy.
  • Bechtol K; Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, I-34127 Trieste, Italy.
  • Bellazzini R; Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy.
  • Bissaldi E; Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy.
  • Blandford RD; Dipartimento di Fisica e Astronomia "G. Galilei", Università di Padova, I-35131 Padova, Italy.
  • Bloom ED; Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, Wisconsin 53706, USA.
  • Bonino R; Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, I-56127 Pisa, Italy.
  • Bottacini E; Istituto Nazionale di Fisica Nucleare, Sezione di Bari, I-70126 Bari, Italy.
  • Brandt TJ; W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94305, USA.
  • Bregeon J; W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94305, USA.
  • Bruel P; Istituto Nazionale di Fisica Nucleare, Sezione di Torino, I-10125 Torino, Italy.
  • Buehler R; Dipartimento di Fisica Generale "Amadeo Avogadro", Università degli Studi di Torino, I-10125 Torino, Italy.
  • Caliandro GA; W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94305, USA.
  • Cameron RA; NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA.
  • Caputo R; Laboratoire Univers et Particules de Montpellier, Université Montpellier, CNRS/IN2P3, Montpellier, France.
  • Caragiulo M; Laboratoire Leprince-Ringuet, École polytechnique, CNRS/IN2P3, Palaiseau, France.
  • Caraveo PA; Deutsches Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
  • Cecchi C; W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94305, USA.
  • Charles E; Consorzio Interuniversitario per la Fisica Spaziale (CIFS), I-10133 Torino, Italy.
  • Chekhtman A; W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94305, USA.
  • Chiang J; Santa Cruz Institute for Particle Physics, Department of Physics and Department of Astronomy and Astrophysics, University of California at Santa Cruz, Santa Cruz, California 95064, USA.
  • Chiaro G; Istituto Nazionale di Fisica Nucleare, Sezione di Bari, I-70126 Bari, Italy.
  • Ciprini S; INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica, I-20133 Milano, Italy.
  • Claus R; Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, I-06123 Perugia, Italy.
  • Cohen-Tanugi J; Dipartimento di Fisica, Università degli Studi di Perugia, I-06123 Perugia, Italy.
  • Conrad J; W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94305, USA.
  • Cuoco A; College of Science, George Mason University, Fairfax, Virginia 22030, USA.
  • Cutini S; W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94305, USA.
  • D'Ammando F; Dipartimento di Fisica e Astronomia "G. Galilei", Università di Padova, I-35131 Padova, Italy.
  • de Angelis A; Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, I-06123 Perugia, Italy.
  • de Palma F; Agenzia Spaziale Italiana (ASI) Science Data Center, I-00133 Roma, Italy.
  • Desiante R; INAF Osservatorio Astronomico di Roma, I-00040 Monte Porzio Catone (Roma), Italy.
  • Digel SW; W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, California 94305, USA.
  • Di Venere L; Laboratoire Univers et Particules de Montpellier, Université Montpellier, CNRS/IN2P3, Montpellier, France.
  • Drell PS; Department of Physics, Stockholm University, AlbaNova, SE-106 91 Stockholm, Sweden.
  • Drlica-Wagner A; The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova, SE-106 91 Stockholm, Sweden.
  • Essig R; Wallenberg Academy Fellow.
  • Favuzzi C; Istituto Nazionale di Fisica Nucleare, Sezione di Torino, I-10125 Torino, Italy.
  • Fegan SJ; Dipartimento di Fisica Generale "Amadeo Avogadro", Università degli Studi di Torino, I-10125 Torino, Italy.
  • Ferrara EC; Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, I-06123 Perugia, Italy.
  • Focke WB; Agenzia Spaziale Italiana (ASI) Science Data Center, I-00133 Roma, Italy.
  • Franckowiak A; INAF Osservatorio Astronomico di Roma, I-00040 Monte Porzio Catone (Roma), Italy.
  • Fukazawa Y; INAF Istituto di Radioastronomia, I-40129 Bologna, Italy.
  • Funk S; Dipartimento di Astronomia, Università di Bologna, I-40127 Bologna, Italy.
Phys Rev Lett ; 115(23): 231301, 2015 Dec 04.
Article in En | MEDLINE | ID: mdl-26684107
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.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2015 Document type: Article Affiliation country: Alemania
Fulltext
Add to My VHL
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2015 Document type: Article Affiliation country: Alemania