SEARCH FOR DARK MATTER SATELLITES USING FERMI-LAT

Ackermann, M; Albert, A; Baldini, L; Bellazzini, R; Bregeon, J; Ballet, J; Barbiellini, G; Bastieri, D; Bechtol, K; Blandford, R D; Bloom, E D; Borgland, A W; Bottacini, E; Buehler, R; Bonamente, E; Brandt, T J; Brigida, M; Bruel, P; Burnett, T H; others, and

doi:10.1088/0004-637X/747/2/121

Title: SEARCH FOR DARK MATTER SATELLITES USING FERMI-LAT

Journal Article · Sat Mar 10 00:00:00 EST 2012 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/747/2/121· OSTI ID:22016233

Ackermann, M ^[1]; Albert, A ^[2]; Baldini, L; Bellazzini, R; Bregeon, J ^[3]; Ballet, J ^[4]; Barbiellini, G ^[5]; Bastieri, D ^[6]; Bechtol, K; Blandford, R D; Bloom, E D; Borgland, A W; Bottacini, E; Buehler, R ^[7]; Bonamente, E ^[8]; Brandt, T J ^[9]; Brigida, M ^[10]; Bruel, P ^[11]; Burnett, T H ^[12]; others, and

Deutsches Elektronen Synchrotron DESY, D-15738 Zeuthen (Germany)
Department of Physics, Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210 (United States)
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, I-56127 Pisa (Italy)
Laboratoire AIM, CEA-IRFU/CNRS/Universite Paris Diderot, Service d'Astrophysique, CEA Saclay, F-91191 Gif sur Yvette (France)
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, I-34127 Trieste (Italy)
Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova (Italy)
W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94305 (United States)
Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, I-06123 Perugia (Italy)
CNRS, IRAP, F-31028 Toulouse cedex 4 (France)
Dipartimento di Fisica 'M. Merlin' dell'Universita e del Politecnico di Bari, I-70126 Bari (Italy)
Laboratoire Leprince-Ringuet, Ecole polytechnique, CNRS/IN2P3, F-91128 Palaiseau (France)
Department of Physics, University of Washington, Seattle, WA 98195-1560 (United States)

Numerical simulations based on the {Lambda}CDM model of cosmology predict a large number of as yet unobserved Galactic dark matter satellites. We report the results of a Large Area Telescope (LAT) search for these satellites via the {gamma}-ray emission expected from the annihilation of weakly interacting massive particle (WIMP) dark matter. Some dark matter satellites are expected to have hard {gamma}-ray spectra, finite angular extents, and a lack of counterparts at other wavelengths. We sought to identify LAT sources with these characteristics, focusing on {gamma}-ray spectra consistent with WIMP annihilation through the b b-bar channel. We found no viable dark matter satellite candidates using one year of data, and we present a framework for interpreting this result in the context of numerical simulations to constrain the velocity-averaged annihilation cross section for a conventional 100 GeV WIMP annihilating through the b b-bar channel.

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OSTI ID:: 22016233

Journal Information:: Astrophysical Journal, Vol. 747, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X

Country of Publication:: United States

Language:: English

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Multiwavelength follow-up of a rare IceCube neutrino multiplet Aartsen, M. G.; Ackermann, M.; Adams, J. arXiv https://doi.org/10.48550/arxiv.1702.06131	text	January 2017
The Waning of the WIMP? A Review of Models, Searches, and Constraints Arcadi, Giorgio; Dutra, Maíra; Ghosh, Pradipta arXiv https://doi.org/10.48550/arxiv.1703.07364	text	January 2017
Unidentified Gamma-ray Sources as Targets for Indirect Dark Matter Detection with the Fermi-Large Area Telescope Coronado-Blazquez, Javier; Sanchez-Conde, Miguel A.; Dominguez, Alberto arXiv https://doi.org/10.48550/arxiv.1906.11896	text	January 2019
Spectral and spatial analysis of the dark matter subhalo candidates among Fermi Large Area Telescope unidentified sources Coronado-Blázquez, Javier; Sánchez-Conde, Miguel A.; Di Mauro, Mattia arXiv https://doi.org/10.48550/arxiv.1910.14429	text	January 2019
Constraints to dark matter annihilation from high-latitude HAWC unidentified sources Coronado-Blazquez, Javier; Sanchez-Conde, Miguel A. arXiv https://doi.org/10.48550/arxiv.2001.02536	text	January 2020

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