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3033652 
Journal Article 
Search for dark matter annihilation signatures in HESS observations of dwarf spheroidal galaxies 
Abramowski, A; Aharonian, F; Benkhali, F; Akhperjanian, AG; Anguener, E; Backes, M; Balenderan, S; Balzer, A; Barnacka, A; Becherini, Y; Tjus, JB; Berge, D; Bernhard, S; Bernloehr, K; Birsin, E; Biteau, J; Boettcher, M; Boisson, C; Bolmont, J; Bordas, P; Bregeon, J; Brun, F; Brun, P; Bryan, M; Bulik, T; Carrigan, S; Casanova, S; Chadwick, PM; Chakraborty, N; Chalme-Calvet, R; Chaves, RCG; Chretien, M; Colafrancesco, S; Cologna, G; Conrad, J; Couturier, C; Cui, Y; Dalton, M; Davids, ID; Degrange, B; Deil, C; Dewilt, P; Djannati-Atai, A; Domainko, W; Donath, A; Drury, L; Dubus, G; Dutson, K; Dyks, J; Dyrda, M; Edwards, T; Egberts, K; Eger, P; Espigat, P; Farnier, C; Fegan, S; Feinstein, F; Fernandes, MV; Fernandez, D; Fiasson, A; Fontaine, G; Foerster, A; Fuessling, M; Gabici, S; Gajdus, M; Gallant, YA; Garrigoux, T; Giavitto, G; Giebels, B; Glicenstein, JF; Gottschall, D; Goudelis, A; Grondin, MH; Grudzinska, M; Hadsch, D; Haeffner, S; Hahn, J; Harris, J; Heinzelmann, G; Henri, G; Hermann, G; Hervet, O; Hillert, A; Hinton, JA; Hofmann, W; Hofverberg, P; Holler, M; Horns, D; Ivascenko, A; Jacholkowska, A; Jahn, C; Jamrozy, M; Janiak, M; Jankowsky, F; Jung, I; Kastendieck, MA; Katarzynski, K; Katz, U; Kaufmann, S; Khelifi, B; Kieffer, M; Klepser, S; Klochkov, D; Kluzniak, W; Kolitzus, D; Komin, Nu; Kosack, K; Krakau, S; Krayzel, F; Krueger, PP; Laffon, H; Lamanna, G; Lefaucheur, J; Lefranc, V; Lemiere, A; Lemoine-Goumard, M; Lenain, JP; Lohse, T; Lopatin, A; Lu, CC; Marandon, V; Marcowith, A; Marx, R; Maurin, G; Maxted, N; Mayer, M; Mccomb, TJL; Mehault, J; Meintjes, PJ; Menzler, U; Meyer, M; Mitchell, AMW; Moderski, R; Mohamed, M; Mora, K; Moulin, E; Murach, T; de Naurois, M; Niemiec, J; Nolan, SJ; Oakes, L; Odaka, H; Ohm, S; Opitz, B; Ostrowski, M; Oya, I; Panter, M; Parsons, RD; Arribas, M; Pekeur, NW; Pelletier, G; Perez, J; Petrucci, PO; Peyaud, B; Pita, S; Poon, H; Puehlhofer, G; Punch, M; Quirrenbach, A; Raab, S; Reichardt, I; Reimer, A; Reimer, O; Renaud, M; de Los Reyes, R; Rieger, F; Rob, L; Romoli, C; Rosier-Lees, S; Rowell, G; Rudak, B; Rulten, CB; Sahakian, V; Salek, D; Sanchez, DA; Santangelo, A; Schlickeiser, R; Schuessler, F; Schulz, A; Schwanke, U; Schwarzburg, S; Schwemmer, S; Serpico, P; Sol, H; Spanier, F; Spengler, G; Spiess, F; Steenkamp, R; Stegmann, C; Stinzing, F; Stycz, K; Sushch, I; Tavernet, JP; Tavernier, T; Taylor, AM; Terrier, R; Tluczykont, M; Trichard, C; Valerius, K; van Eldik, C; van Soelen, B; Vasileiadis, G; Veh, J; Venter, C; Viana, A; Vincent, P; Vink, J; Voelk, HJ; Volpe, F; Vorster, M; Vuillaume, T; Wagner, SJ; Wagner, P; Wagner, RM; Ward, M; Weidinger, M; Weitzel, Q; White, R; Wierzcholska, A; Willmann, P; Woernlein, A; Wouters, D; Yang, R; Zabalza, V; Zaborov, D; Zacharias, M; Zdziarski, AA; Zech, A; Zechlin, HS; HESS Collaboration 
2014 
1 
Physical Review D (Particles, Fields, Gravitation and Cosmology)
ISSN: 1550-7998 
90 
11 
WOS:000347202900002 
Dwarf spheroidal galaxies of the Local Group are close satellites of the Milky Way characterized by a large mass-to-light ratio and are not expected to be the site of nonthermal high-energy gamma-ray emission or intense star formation. Therefore they are among the most promising candidates for indirect dark matter searches. During the last years the High Energy Stereoscopic System (H.E.S.S.) of imaging atmospheric Cherenkov telescopes observed five of these dwarf galaxies for more than 140 hours in total, searching for TeV gamma-ray emission from annihilation of dark matter particles. The new results of the deep exposure of the Sagittarius dwarf spheroidal galaxy, the first observations of the Coma Berenices and Fornax dwarves and the reanalysis of two more dwarf spheroidal galaxies already published by the H.E.S.S. Collaboration, Carina and Sculptor, are presented. In the absence of a significant signal new constraints on the annihilation cross section applicable to weakly interacting massive particles (WIMPs) are derived by combining the observations of the five dwarf galaxies. The combined exclusion limit depends on the WIMP mass and the best constraint is reached at 1-2 TeV masses with a cross-section upper bound of similar to 3.9 x 10(-24) cm(3) s(-1) at a 95% confidence level.