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

Authors

M. Ackermann, Deutsches Elektronen Synchrotron DESY
A. Albert, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
B. Anderson, Stockholm University, The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova
W. B. Atwood, Santa Cruz Institute for Particle Physics, University of California at Santa Cruz
L. Baldini, Università di Pisa and Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
G. Barbiellini, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Università di Trieste
D. Bastieri, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Università di Padova
K. Bechtol, Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin
R. Bellazzini, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
E. Bissaldi, Istituto Nazionale di Fisica Nucleare, Sezione di Bari
R. D. Blandford, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
E. D. Bloom, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
R. Bonino, Istituto Nazionale di Fisica Nucleare, Sezione di Torino, Università degli Studi di Torino
E. Bottacini, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
T. J. Brandt, NASA Goddard Space Flight Center
J. Bregeon, Laboratoire Univers et Particules de Montpellier, Université Montpellier
P. Bruel, Laboratoire Leprince-Ringuet, École polytechnique, CNRS/IN2P3
R. Buehler, Deutsches Elektronen Synchrotron DESY
G. A. Caliandro, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University, Consorzio Interuniversitario per la Fisica Spaziale (CIFS)
R. A. Cameron, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
R. Caputo, Santa Cruz Institute for Particle Physics, University of California at Santa Cruz
M. Caragiulo, Istituto Nazionale di Fisica Nucleare, Sezione di Bari
P. A. Caraveo, INAF-Istituto di Astrofisica Spaziale e Fisica Cosmica
C. Cecchi, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Università degli Studi di Perugia
E. Charles, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
A. Chekhtman, George Mason University
J. Chiang, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University
G. Chiaro, Università di Padova
S. Ciprini, Agenzia Spaziale Italiana (ASI) Science Data Center, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, INAF Osservatorio Astronomico di Roma
R. Claus, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University,
J. Cohen-Tanugi, Laboratoire Univers et Particules de Montpellier, Université Montpellier
J. Conrad, Stockholm University, The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova, Wallenberg Academy Fellow
A. Cuoco, Istituto Nazionale di Fisica Nucleare, Sezione di Torino, Dipartimento di Fisica Generale “Amadeo Avogadro”, Università degli Studi di Torino
S. Cutini, Agenzia Spaziale Italiana (ASI) Science Data Center, INAF Osservatorio Astronomico di Roma, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
F. D’Ammando, INAF Istituto di Radioastronomia, Università di Bologna
A. de Angelis, Università di Udine and Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Gruppo Collegato di Udine
F. de Palma, Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Università Telematica Pegaso, Piazza Trieste e Trento
R. Desiante, Università di Udine, Istituto Nazionale di Fisica Nucleare, Sezione di Torino
S. W. Digel, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
L. Di Venere, Università e del Politecnico di Bari
P. S. Drell, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
A. Drlica-Wagner, Center for Particle Astrophysics, Fermi National Accelerator Laboratory
R. Essig, C.N. Yang Institute for Theoretical Physics, State University of New York
C. Favuzzi, Università e del Politecnico di Bari, Istituto Nazionale di Fisica Nucleare, Sezione di Torino
S. J. Fegan, Laboratoire Leprince-Ringuet, École polytechnique, CNRS/IN2P3
E. C. Ferrara, NASA Goddard Space Flight Center
W. B. Focke, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
A. Franckowiak, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
Y. Fukazawa, Hiroshima University
S. Funk, Erlangen Centre for Astroparticle Physics
P. Fusco, Università e del Politecnico di Bari, Istituto Nazionale di Fisica Nucleare, Sezione di Bari
F. Gargano, Istituto Nazionale di Fisica Nucleare, Sezione di Bari,
D. Gasparrini, Agenzia Spaziale Italiana (ASI) Science Data Center, INAF Osservatorio Astronomico di Roma, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
N. Giglietto, Università e del Politecnico di Bari, Istituto Nazionale di Fisica Nucleare, Sezione di Bari
F. Giordano, Università e del Politecnico di Bari, Istituto Nazionale di Fisica Nucleare, Sezione di Bari
M. Giroletti, INAF Istituto di Radioastronomia
T. Glanzman, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
G. Godfrey, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
G. A. Gomez-Vargas, Istituto Nazionale di Fisica Nucleare, Sezione di Roma “Tor Vergata”, Departamento de Fisíca, Pontificia Universidad Católica de Chile
I. A. Grenier, Laboratoire AIM, CEA-IRFU/CNRS/Université Paris Diderot, Service d’Astrophysique
S. Guiriec, NASA Goddard Space Flight Center, NASA Postdoctoral Program Fellow
M. Gustafsson, Georg-August University Göttingen, Institute for theoretical Physics—Faculty of Physics
E. Hays, NASA Goddard Space Flight Center
J. W. Hewitt, University of North Florida
D. Horan, Laboratoire Leprince-Ringuet, École polytechnique, CNRS/IN2P3
T. Jogler, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
G. Jóhannesson, Science Institute, University of Iceland
M. Kuss, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
S. Larsson, KTH Royal Institute of Technology, AlbaNova, The Oskar Klein Centre for Cosmoparticle Physics
L. Latronico, Istituto Nazionale di Fisica Nucleare, Sezione di Torino
J. Li, Institute of Space Sciences (IEEC-CSIC)
L. Li, KTH Royal Institute of Technology, AlbaNova, The Oskar Klein Centre for Cosmoparticle Physics
M. Llena Garde, Stockholm University, The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova
F. Longo, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Università di Trieste
F. Loparco, Università e del Politecnico di Bari, Istituto Nazionale di Fisica Nucleare, Sezione di Bari
P. Lubrano, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Università degli Studi di Perugia
D. Malyshev, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
M. Mayer, Deutsches Elektronen Synchrotron DESY
M. N. Mazziotta, Istituto Nazionale di Fisica Nucleare, Sezione di Bari
J. E. McEnery, NASA Goddard Space Flight Center, University of Maryland
M. Meyer, Stockholm University, The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova
P. F. Michelson, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
T. Mizuno, University of North Florida
A. A. Moiseev, Center for Research and Exploration in Space Science and Technology (CRESST) and NASA Goddard Space Flight Center, University of Maryland
M. E. Monzani, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
A. Morselli, Istituto Nazionale di Fisica Nucleare, Sezione di Roma “Tor Vergata”
S. Murgia, Center for Cosmology, University of California
E. Nuss, Laboratoire Univers et Particules de Montpellier, Université Montpellier
T. Ohsugi, Hiroshima Astrophysical Science Center, Hiroshima University
M. Orienti, INAF Istituto di Radioastronomia
E. Orlando, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
J. F. Ormes, University of DenverFollow
D. Paneque, Max-Planck-Institut für Physik, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
J. S. Perkins, NASA Goddard Space Flight Center
M. Pesce-Rollins, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
F. Piron, Laboratoire Univers et Particules de Montpellier, Université Montpellier
G. Pivato, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
T. A. Porter, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
S. Rainò, Università e del Politecnico di Bari, Istituto Nazionale di Fisica Nucleare, Sezione di Bari
R. Rando, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Università di Padova
M. Razzano, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
A. Reimer, Institut für Astro- und Teilchenphysik and Institut für Theoretische Physik, Leopold-Franzens-Universität Innsbruck, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
O. Reimer, Institut für Astro- und Teilchenphysik and Institut für Theoretische Physik, Leopold-Franzens-Universität Innsbruck, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
S. Ritz, Santa Cruz Institute for Particle Physics, University of California at Santa Cruz
M. Sánchez-Conde, The Oskar Klein Centre for Cosmoparticle Physics, Stockholm University, AlbaNova
A. Schulz, Deutsches Elektronen Synchrotron DESY
N. Sehgal, Stony Brook University
C. Sgrò, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
E. J. Siskind, NYCB Real-Time Computing Inc.
F. Spada, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
G. Spandre, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
P. Spinelli, Università e del Politecnico di Bari, Istituto Nazionale di Fisica Nucleare, Sezione di Bari
L. Strigari, Texas A&M University
H. Tajima, Solar-Terrestrial Environment Laboratory, Nagoya University, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
H. Takahashi, Hiroshima University
J. B. Thayer, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
L. Tibaldo, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
D. F. Torres, Institute of Space Sciences (IEEC-CSIC), Institució Catalana de Recerca i Estudis Avançats (ICREA)
E. Troja, NASA Goddard Space Flight Center, University of Maryland
G. Vianello, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
M. Werner, Institut für Astro- und Teilchenphysik and Institut für Theoretische Physik, Leopold-Franzens-Universität Innsbruck
B. L. Winer, Center for Cosmology and Astro-Particle Physics, The Ohio State University
K. S. Wood, Space Science Division, Naval Research Laboratory
M. Wood, W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University
G. Zaharijas, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, and Università di Trieste, Laboratory for Astroparticle Physics, University of Nova Gorica
S. Zimmer, Stockholm University, The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova
The Fermi-LAT Collaboration

Publication Date

11-30-2015

Document Type

Article

Organizational Units

Physics and Astronomy

Keywords

Gamma ray astronomy, Particle dark matter, Normal galaxies

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.

Publication Statement

Copyright held by author or publisher. User is responsible for all copyright compliance.

Recommended Citation

Ackermann, M, et al. “Searching for Dark Matter Annihilation from Milky Way Dwarf Spheroidal Galaxies with Six Years of Fermi Large Area Telescope Data.” Physical Review Letters, vol. 115, no. 23, 2015, p. 231301. doi: 10.1103/physrevlett.115.231301.