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

(The Fermi-LAT Collaboration)

doi:10.1103/PhysRevLett.115.231301

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

(The Fermi-LAT Collaboration)

German Electron Synchrotron
Kavli Institute for Particle Astrophysics and Cosmology
Stockholm University
Oskar Klein Centre
University of California at Santa Cruz
University of Pisa
National Institute for Nuclear Physics
University of Trieste
University of Padua
University of Wisconsin-Madison
University of Turin
NASA Goddard Space Flight Center
LUPM-UMR 5299, CNRS, Université Montpellier
Laboratoire Leprince-Ringuet
Consorzio Interuniversitario per la Fisica Spaziale (CIFS)
Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna
University of Perugia
George Mason University
Naval Research Laboratory
Italian Space Agency
Osservatorio Astronomico Roma
Wallenberg Academy Fellow
National Institute for Astrophysics
University of Bologna
University of Udine
Pegaso Telematic University
Polytechnic University of Bari
Fermi National Accelerator Laboratory
Hiroshima University

Research output: Contribution to journal › Article › peer-review

1102 Scopus citations

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.

Original language	English
Article number	231301
Journal	Physical Review Letters
Volume	115
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.115.231301
State	Published - Nov 30 2015

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10.1103/PhysRevLett.115.231301

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@article{974546d6bd93453aac973bbc367ec659,

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

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.",

author = "\{(The Fermi-LAT Collaboration)\} and M. Ackermann and A. Albert and B. Anderson and Atwood, \{W. B.\} and L. Baldini and G. Barbiellini and D. Bastieri and K. Bechtol and R. Bellazzini and E. Bissaldi and Blandford, \{R. D.\} and Bloom, \{E. D.\} and R. Bonino and E. Bottacini and Brandt, \{T. J.\} and J. Bregeon and P. Bruel and R. Buehler and Caliandro, \{G. A.\} and Cameron, \{R. A.\} and R. Caputo and M. Caragiulo and Caraveo, \{P. A.\} and C. Cecchi and E. Charles and A. Chekhtman and J. Chiang and G. Chiaro and S. Ciprini and R. Claus and J. Cohen-Tanugi and J. Conrad and A. Cuoco and S. Cutini and F. D'Ammando and \{De Angelis\}, A. and \{De Palma\}, F. and R. Desiante and Digel, \{S. W.\} and \{Di Venere\}, L. and Drell, \{P. S.\} and A. Drlica-Wagner and R. Essig and C. Favuzzi and Fegan, \{S. J.\} and Ferrara, \{E. C.\} and Focke, \{W. B.\} and A. Franckowiak and Y. Fukazawa and N. Sehgal",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = nov,

day = "30",

doi = "10.1103/PhysRevLett.115.231301",

language = "English",

volume = "115",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "23",

}

TY - JOUR

T1 - Searching for Dark Matter Annihilation from Milky Way Dwarf Spheroidal Galaxies with Six Years of Fermi Large Area Telescope Data

AU - (The Fermi-LAT Collaboration)

AU - Ackermann, M.

AU - Albert, A.

AU - Anderson, B.

AU - Atwood, W. B.

AU - Baldini, L.

AU - Barbiellini, G.

AU - Bastieri, D.

AU - Bechtol, K.

AU - Bellazzini, R.

AU - Bissaldi, E.

AU - Blandford, R. D.

AU - Bloom, E. D.

AU - Bonino, R.

AU - Bottacini, E.

AU - Brandt, T. J.

AU - Bregeon, J.

AU - Bruel, P.

AU - Buehler, R.

AU - Caliandro, G. A.

AU - Cameron, R. A.

AU - Caputo, R.

AU - Caragiulo, M.

AU - Caraveo, P. A.

AU - Cecchi, C.

AU - Charles, E.

AU - Chekhtman, A.

AU - Chiang, J.

AU - Chiaro, G.

AU - Ciprini, S.

AU - Claus, R.

AU - Cohen-Tanugi, J.

AU - Conrad, J.

AU - Cuoco, A.

AU - Cutini, S.

AU - D'Ammando, F.

AU - De Angelis, A.

AU - De Palma, F.

AU - Desiante, R.

AU - Digel, S. W.

AU - Di Venere, L.

AU - Drell, P. S.

AU - Drlica-Wagner, A.

AU - Essig, R.

AU - Favuzzi, C.

AU - Fegan, S. J.

AU - Ferrara, E. C.

AU - Focke, W. B.

AU - Franckowiak, A.

AU - Fukazawa, Y.

AU - Sehgal, N.

PY - 2015/11/30

Y1 - 2015/11/30

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84949659887

U2 - 10.1103/PhysRevLett.115.231301

DO - 10.1103/PhysRevLett.115.231301

M3 - Article

AN - SCOPUS:84949659887

SN - 0031-9007

VL - 115

JO - Physical Review Letters

JF - Physical Review Letters

IS - 23

M1 - 231301

ER -

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

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