| Literature DB >> 26684107 |
M Ackermann1, A Albert2, B Anderson3,4, W B Atwood5, L Baldini2,6, G Barbiellini7,8, D Bastieri9,10, K Bechtol11, R Bellazzini12, E Bissaldi13, R D Blandford2, E D Bloom2, R Bonino14,15, E Bottacini2, T J Brandt16, J Bregeon17, P Bruel18, R Buehler1, G A Caliandro2,19, R A Cameron2, R Caputo5, M Caragiulo13, P A Caraveo20, C Cecchi21,22, E Charles2, A Chekhtman23, J Chiang2, G Chiaro10, S Ciprini21,24,25, R Claus2, J Cohen-Tanugi17, J Conrad3,4,26, A Cuoco14,15, S Cutini21,24,25, F D'Ammando27,28, A de Angelis29, F de Palma13,30, R Desiante14,31, S W Digel2, L Di Venere32, P S Drell2, A Drlica-Wagner33, R Essig34, C Favuzzi13,32, S J Fegan18, E C Ferrara16, W B Focke2, A Franckowiak2, Y Fukazawa35, S Funk36, P Fusco13,32, F Gargano13, D Gasparrini21,24,25, N Giglietto13,32, F Giordano13,32, M Giroletti27, T Glanzman2, G Godfrey2, G A Gomez-Vargas37,38, I A Grenier39, S Guiriec16,40, M Gustafsson41, E Hays16, J W Hewitt42, D Horan18, T Jogler2, G Jóhannesson43, M Kuss12, S Larsson4,44, L Latronico14, J Li45, L Li4,44, M Llena Garde3,4, F Longo7,8, F Loparco13,32, P Lubrano21,22, D Malyshev2, M Mayer1, M N Mazziotta13, J E McEnery16,46, M Meyer3,4, P F Michelson2, T Mizuno47, A A Moiseev46,48, M E Monzani2, A Morselli37, S Murgia49, E Nuss17, T Ohsugi47, M Orienti27, E Orlando2, J F Ormes50, D Paneque2,51, J S Perkins16, M Pesce-Rollins2,12, F Piron17, G Pivato12, T A Porter2, S Rainò13,32, R Rando9,10, M Razzano12, A Reimer2,52, O Reimer2,52, S Ritz5, M Sánchez-Conde3,4, A Schulz1, N Sehgal53, C Sgrò12, E J Siskind54, F Spada12, G Spandre12, P Spinelli13,32, L Strigari55, H Tajima2,56, H Takahashi35, J B Thayer2, L Tibaldo2, D F Torres45,57, E Troja16,46, G Vianello2, M Werner52, B L Winer58, K S Wood59, M Wood2, G Zaharijas60,61, S Zimmer3,4.
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.Entities:
Year: 2015 PMID： 26684107 DOI： 10.1103/PhysRevLett.115.231301
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161