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    Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.

    Access Status
    Fulltext not available
    Authors
    Aharonian, F.
    Akhperjanian, A.
    Anton, G.
    Barres de Almeida, U.
    Bazer-Bachi, A.
    Becherini, Y.
    Behera, B.
    Bernlöhr, K.
    Bochow, A.
    Boisson, C.
    Bolmont, J.
    Borrel, V.
    Brucker, J.
    Brun, F.
    Brun, P.
    BüHLER, R.
    Bulik, T.
    Büsching, I.
    Boutelier, T.
    Chadwick, P.
    Charbonnier, A.
    Chaves, R.
    Cheesebrough, A.
    Chounet, L.
    Clapson, A.
    Coignet, G.
    Dalton, M.
    Daniel, M.
    Davids, I.
    Degrange, B.
    Deil, C.
    Dickinson, H.
    Djannati-Ataï, A.
    Domainko, W.
    Drury, L.
    Dubois, F.
    Dubus, G.
    Dyks, J.
    Dyrda, M.
    Egberts, K.
    Emmanoulopoulos, D.
    Espigat, P.
    Farnier, C.
    Feinstein, F.
    Fiasson, A.
    Förster, A.
    Fontaine, G.
    Füßling, M.
    Gabici, S.
    Gallant, Y.
    Gerard, L.
    Gerbig, D.
    Giebels, B.
    Glicenstein, J.
    Glück, B.
    Goret, P.
    Göring, D.
    Häuser, D.
    Hauser, M.
    Heinz, S.
    Heinzelmann, G.
    Henri, G.
    Hermann, G.
    Hinton, J.
    Hoffmann, A.
    Hofmann, W.
    Holleran, M.
    Hoppe, P.
    Horns, D.
    Jacholkowska, A.
    De Jager, O.
    Jahn, C.
    Jung, I.
    Katarzynski, K.
    Katz, U.
    Kaufmann, S.
    Kendziorra, E.
    Kerschhaggl, M.
    Khangulyan, D.
    Khélifi, B.
    Keogh, D.
    Kluzniak, W.
    Kneiske, T.
    Komin, N.
    Kosack, K.
    Kossakowski, R.
    Lamanna, G.
    Lenain, J.
    Lohse, T.
    Marandon, V.
    Martin, J.
    Martineau-Huynh, O.
    Marcowith, A.
    Masbou, J.
    Maurin, D.
    McComb, T.
    Medina, C.
    Moderski, R.
    Moulin, E.
    Naumann-Godo, M.
    de Naurois, M.
    Nedbal, D.
    Nekrassov, D.
    Nicholas, B.
    Niemiec, J.
    Nolan, S.
    Ohm, S.
    Olive, J.
    de Oña Wilhelmi, E.
    Orford, K.
    Ostrowski, M.
    Panter, M.
    Paz Arribas, M.
    Pedaletti, G.
    Pelletier, G.
    Petrucci, P.
    Pita, S.
    Pühlhofer, G.
    Punch, M.
    Quirrenbach, A.
    Raubenheimer, B.
    Raue, M.
    Rayner, S.
    Reimer, O.
    Renaud, M.
    Rieger, F.
    Ripken, J.
    Rob, L.
    Rosier Lees, S.
    Rowell, G.
    Rudak, B.
    Rulten, C.
    Ruppel, J.
    Sahakian, V.
    Santangelo, A.
    Schlickeiser, R.
    Schöck, F.
    Schröder, R.
    Schwanke, U.
    Schwarzburg, S.
    Schwemmer, S.
    Shalchi, A.
    Sikora, M.
    Skilton, J.
    Sol, H.
    Spangler, D.
    Stawarz, L.
    Steenkamp, R.
    Stegmann, C.
    Stinzing, F.
    Superina, G.
    Szostek, A.
    Tam, P.
    Tavernet, J.
    Terrier, R.
    Tibolla, Omar
    Tluczykont, M.
    van Eldik, C.
    Vasileiadis, G.
    Venter, C.
    Venter, L.
    Vialle, J.
    Vincent, P.
    Vivier, M.
    Volk, H.
    Volpe, F.
    Wagner, S.
    Ward, M.
    Zdziarski, A.
    Zech, A.
    Date
    2009
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Aharonian, F. and Akhperjanian, A. and Anton, G. and Barres de Almeida, U. and Bazer-Bachi, A. and Becherini, Y. and Behera, B. et al. 2009. Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.. Astronomy and Astrophysics. 508: pp. 561-564.
    Source Title
    Astronomy and Astrophysics
    Additional URLs
    http://www.aanda.org/articles/aa/pdf/2009/47/aa13323-09.pdf
    ISSN
    0004-6361
    URI
    http://hdl.handle.net/20.500.11937/39341
    Collection
    • Curtin Research Publications
    Abstract

    The measurement of an excess in the cosmic-ray electron spectrum between 300 and 800 GeV by the ATIC experiment has - together with the PAMELA detection of a rise in the positron fraction up to ˜100 GeV - motivated many interpretations in terms of dark matter scenarios; alternative explanations assume a nearby electron source like a pulsar or supernova remnant. Here we present a measurement of the cosmic-ray electron spectrum with H.E.S.S. starting at 340 GeV. While the overall electron flux measured by H.E.S.S. is consistent with the ATIC data within statistical and systematic errors, the H.E.S.S. data exclude a pronounced peak in the electron spectrum as suggested for interpretation by ATIC. The H.E.S.S. data follow a power-law spectrum with spectral index of 3.0±0.1(stat.)± 0.3(syst.), which steepens at about 1 TeV.

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