Dark matter constraints from observations of 25 Milky Way satellite galaxies with the Fermi Large Area Telescope

Journal article

Publication Details

Author(s): Ackermann M, Albert A, Anderson B, Baldini L, Ballet J, Barbiellini G, Bastieri D, Bechtol K, Bellazzini R, Bissaldi E, Bloom ED, Bonamente E, Bouvier A, Brandt TJ, Bregeon J, Brigida M, Bruel P, Buehler R, Buson S, Caliandro GA, Cameron RA, Caragiulo M, Caraveo PA, Cecchi C, Charles E, Chekhtman A, Chiang J, Ciprini S, Claus R, Cohen-Tanugi J, Conrad J, D'Ammando F, de Angelis A, Dermer CD, Digel SW, do Couto e Silva E, Drell PS, Drlica-Wagner A, Essig R, Favuzzi C, Ferrara EC, Franckowiak A, Fukazawa Y, Funk S, Fusco P, Gargano F, Gasparrini D, Giglietto N, Giroletti M, Godfrey G, Gomez-Vargas GA, Grenier IA, Guiriec S, Gustafsson M, Hayashida M, Hays E, Hewitt J, Hughes RE, Jogler T, Kamae T, Knoedlseder J, Kocevski D, Kuss M, Larsson S, Latronico L, Garde ML, Longo F, Loparco F, Lovellette MN, Lubrano P, Martinez G, Mayer M, Mazziotta MN, Michelson PF, Mitthumsiri W, Mizuno T, Moiseev AA, Monzani ME, Morselli A, Moskalenko IV, Murgia S, Nemmen R, Nuss E, Ohsugi T, Orlando E, Ormes JF, Perkins JS, Piron F, Pivato G, Porter TA, Raino S, Rando R, Razzano M, Razzaque S, Reimer A, Reimer O, Ritz S, Sanchez-Conde M, Sehgal N, Sgro C, Siskind EJ, Spinelli P, Strigari L, Suson DJ, Tajima H, Takahashi H, Thayer JB, Tibaldo L, Tinivella M, Torres DF, Uchiyama Y, Usher TL, Vandenbroucke J, Vianello G, Vitale V, Werner M, Winer BL, Wood KS, Wood M, Zaharijas G, Zimmer S
Journal: Physical Review D - Particles, Fields, Gravitation and Cosmology
Publisher: American Physical Society
Publication year: 2014
Volume: 89
ISSN: 1550-7998


The dwarf spheroidal satellite galaxies of the Milky Way are some of the most dark-matter-dominated objects known. Due to their proximity, high dark matter content, and lack of astrophysical backgrounds, dwarf spheroidal galaxies are widely considered to be among the most promising targets for the indirect detection of dark matter via gamma rays. Here we report on.-ray observations of 25 Milky Way dwarf spheroidal satellite galaxies based on 4 years of Fermi Large Area Telescope (LAT) data. None of the dwarf galaxies are significantly detected in. rays, and we present.-ray flux upper limits between 500 MeV and 500 GeV. We determine the dark matter content of 18 dwarf spheroidal galaxies from stellar kinematic data and combine LAT observations of 15 dwarf galaxies to constrain the dark matter annihilation cross section. We set some of the tightest constraints to date on the annihilation of dark matter particles with masses between 2 GeV and 10 TeV into prototypical standard model channels. We find these results to be robust against systematic uncertainties in the LAT instrument performance, diffuse.-ray background modeling, and assumed dark matter density profile.

FAU Authors / FAU Editors

Funk, Stefan Prof. Dr.
Lehrstuhl für Physik

External institutions with authors

Deutsches Elektronen-Synchrotron DESY
École Polytechnique - Université Paris-Saclay
George Mason University
Hiroshima University
Italian Space Agency / Agenzia Spaziale Italiana (ASI)
Leopold-Franzens-Universität Innsbruck / University of Innsbruck
National Aeronautics and Space Administration (NASA)
National Center for Scientific Research / Centre national de la recherche scientifique (CNRS)
National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF)
National Institute for Nuclear Physics / Istituto Nazionale di Fisica Nucleare (INFN)
NYCB Real-Time Computing, Inc.
Ohio State University
Purdue University Northwest / Purdue University Calumet
Spanish National Research Council / Consejo Superior de Investigaciones Científicas (CSIC)
Stanford University
State University of New York (SUNY) Stony Brook
Stockholm University / Stockholms universitet
Université libre de Bruxelles (ULB)
University of Bari Aldo Moro / Università degli Studi di Bari Aldo Moro
University of California Irvine
University of California Santa Cruz
University of Denver
University of Johannesburg
University of Maryland
University of Montpellier / Université Montpellier
University of Padua
University of Paris 7 - Denis Diderot / Université Paris VII Denis Diderot
University of Pisa / Università di Pisa (UniPi)
University of Tokyo
University of Udine / Università degli Studi di Udine
U.S. Naval Research Laboratory

How to cite

Ackermann, M., Albert, A., Anderson, B., Baldini, L., Ballet, J., Barbiellini, G.,... Zimmer, S. (2014). Dark matter constraints from observations of 25 Milky Way satellite galaxies with the Fermi Large Area Telescope. Physical Review D - Particles, Fields, Gravitation and Cosmology, 89. https://dx.doi.org/10.1103/PhysRevD.89.042001

Ackermann, M., et al. "Dark matter constraints from observations of 25 Milky Way satellite galaxies with the Fermi Large Area Telescope." Physical Review D - Particles, Fields, Gravitation and Cosmology 89 (2014).


Last updated on 2019-20-03 at 15:53