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Search for dark matter annihilation signals from the Fornax galaxy cluster with H.E.S.S.
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LIBRIS-ID:oai:DiVA.org:lnu-30221
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https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-30221URI
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https://doi.org/10.1088/0004-637X/750/2/123DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-95487URI
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Language:English
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Summary in:English
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Correction published in: Astrophysical Journal 2014, vol 783, issue 1, ArticleID 63, doi:10.1088/0004-637X/783/1/63
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Correction in: Astrophysical Journal, 2014, vol. 783, issue. 1. DOI: 10.1088/0004-637X/783/1/63, WOS: 000334919600063QC 20120528
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The Fornax galaxy cluster was observed with the High Energy Stereoscopic System for a total live time of 14.5 hr, searching for very high energy (VHE; E > 100GeV) gamma-rays from dark matter (DM) annihilation. No significant signal was found in searches for point-like and extended emissions. Using several models of the DM density distribution, upper limits on the DM velocity-weighted annihilation cross-section as a function of the DM particle mass are derived. Constraints are derived for different DM particle models, such as those arising from Kaluza-Klein and supersymmetric models. Various annihilation final states are considered. Possible enhancements of the DM annihilation gamma-ray flux, due to DM substructures of the DM host halo, or from the Sommerfeld effect, are studied. Additional gamma-ray contributions from internal bremsstrahlung and inverse Compton radiation are also discussed. For a DM particle mass of 1 TeV, the exclusion limits at 95% of confidence level reach values of (95% C.L.) similar to 10(-23) cm(3) s(-1), depending on the DM particle model and halo properties. Additional contribution from DM substructures can improve the upper limits on by more than two orders of magnitude. At masses around 4.5 TeV, the enhancement by substructures and the Sommerfeld resonance effect results in a velocity-weighted annihilation cross-section upper limit at the level of (95% C.L.) similar to 10(-26) cm(3) s(-1).
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Acero, F.
(author)
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Aharonian, F.
(author)
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Akhperjanian, A. G.
(author)
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Anton, G.
(author)
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Balzer, A.
(author)
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Barnacka, A.
(author)
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de Almeida, U. Barres
(author)
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Becherini, Yvonne
(author)
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Becker, J.
(author)
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Behera, B.
(author)
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Bernloehr, K.
(author)
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Birsin, E.
(author)
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Biteau, J.
(author)
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Bochow, A.
(author)
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Boisson, C.
(author)
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Bolmont, J.
(author)
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Bordas, P.
(author)
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Brucker, J.
(author)
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Brun, F.
(author)
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Brun, P.
(author)
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Bulik, T.
(author)
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Bueching, I.
(author)
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Carrigan, S.
(author)
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Casanova, S.
(author)
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Cerruti, M.
(author)
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Punch, MichaelUniv Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France(Swepub:lnu)mipuaa
(author)
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Charbonnier, A.
(author)
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Chaves, R. C. G.
(author)
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Cheesebrough, A.
(author)
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Clapson, A. C.
(author)
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Coignet, G.
(author)
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Cologna, G.
(author)
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Conrad, JanKTH,Fysik(Swepub:kth)u1o0ezny
(author)
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Dalton, M.
(author)
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Daniel, M. K.
(author)
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Davids, I. D.
(author)
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Degrange, B.
(author)
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Deil, C.
(author)
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Dickinson, Hugh J.KTH,Fysik(Swepub:kth)PI000000
(author)
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Djannati-Atai, A.
(author)
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Domainko, W.
(author)
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Drury, L. O 'C.
(author)
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Dubus, G.
(author)
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Dutson, K.
(author)
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Dyks, J.
(author)
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Dyrda, M.
(author)
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Egberts, K.
(author)
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Eger, P.
(author)
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Espigat, P.
(author)
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Fallon, L.
(author)
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Farnier, C.
(author)
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Fegan, S.
(author)
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Feinstein, F.
(author)
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Fernandes, M. V.
(author)
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Fiasson, A.
(author)
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Fontaine, G.
(author)
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Foerster, A.
(author)
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Fuessling, M.
(author)
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Gallant, Y. A.
(author)
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Gast, H.
(author)
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Gerard, L.
(author)
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Gerbig, D.
(author)
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Giebels, B.
(author)
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Glicenstein, J. F.
(author)
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Glueck, B.
(author)
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Goret, P.
(author)
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Goering, D.
(author)
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Haeffner, S.
(author)
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Hague, J. D.
(author)
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Hampf, D.
(author)
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Hauser, M.
(author)
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Heinz, S.
(author)
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Heinzelmann, G.
(author)
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Henri, G.
(author)
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Hermann, G.
(author)
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Hinton, J. A.
(author)
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Hoffmann, A.
(author)
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Hofmann, W.
(author)
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Hofverberg, P.
(author)
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Holler, M.
(author)
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Horns, D.
(author)
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Jacholkowska, A.
(author)
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de Jager, O. C.
(author)
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Jahn, C.
(author)
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Jamrozy, M.
(author)
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Jung, I.
(author)
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Kastendieck, M. A.
(author)
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Katarzynski, K.
(author)
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Katz, U.
(author)
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Kaufmann, S.
(author)
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Keogh, D.
(author)
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Khangulyan, D.
(author)
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Khelifi, B.
(author)
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Klochkov, D.
(author)
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Kluzniak, W.
(author)
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Kneiske, T.
(author)
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Komin, Nu
(author)
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Kosack, K.
(author)
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Kossakowski, R.
(author)
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Laffon, H.
(author)
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Lamanna, G.
(author)
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Lennarz, D.
(author)
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Lohse, T.
(author)
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Lopatin, A.
(author)
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Lu, C. -C
(author)
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Marandon, V.
(author)
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Marcowith, A.
(author)
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Masbou, J.
(author)
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Maurin, D.
(author)
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Maxted, N.
(author)
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Mayer, M.
(author)
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McComb, T. J. L.
(author)
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Medina, M. C.
(author)
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Mehault, J.
(author)
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Moderski, R.
(author)
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Moulin, E.
(author)
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Naumann, C. L.
(author)
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Naumann-Godo, M.
(author)
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de Naurois, M.
(author)
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Nedbal, D.
(author)
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Nekrassov, D.
(author)
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Nguyen, N.
(author)
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Nicholas, B.
(author)
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Niemiec, J.
(author)
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Nolan, S. J.
(author)
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Ohm, S.
(author)
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Wilhelmi, E. de Ona
(author)
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Opitz, B.
(author)
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Ostrowski, M.
(author)
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Oya, I.
(author)
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Panter, M.
(author)
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Arribas, M. Paz
(author)
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Pedaletti, G.
(author)
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Pelletier, G.
(author)
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Petrucci, P. -O
(author)
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Pita, S.
(author)
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Puehlhofer, G.
(author)
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Punch, MichaelUniv Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France(Swepub:lnu)mipuaa
(author)
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Quirrenbach, A.
(author)
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Raue, M.
(author)
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Rayner, S. M.
(author)
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Reimer, A.
(author)
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Reimer, O.
(author)
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Renaud, M.
(author)
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de los Reyes, R.
(author)
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Rieger, F.
(author)
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Ripken, JoachimKTH,Fysik(Swepub:kth)PI000000
(author)
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Rob, L.
(author)
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Rosier-Lees, S.
(author)
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Rowell, G.
(author)
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Rudak, B.
(author)
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Rulten, C. B.
(author)
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Ruppel, J.
(author)
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Sahakian, V.
(author)
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Sanchez, D. A.
(author)
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Santangelo, A.
(author)
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Schlickeiser, R.
(author)
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Schoeck, F. M.
(author)
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Schulz, A.
(author)
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Schwanke, U.
(author)
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Schwarzburg, S.
(author)
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Schwemmer, S.
(author)
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Sheidaei, F.
(author)
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Skilton, J. L.
(author)
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Sol, H.
(author)
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Spengler, G.
(author)
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Stawarz, L.
(author)
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Steenkamp, R.
(author)
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Stegmann, C.
(author)
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Stinzing, F.
(author)
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Stycz, K.
(author)
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Sushch, I.
(author)
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Szostek, A.
(author)
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Tavernet, J. -P
(author)
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Terrier, R.
(author)
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Tluczykont, M.
(author)
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Valerius, K.
(author)
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van Eldik, C.
(author)
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Vasileiadis, G.
(author)
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Venter, C.
(author)
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Vialle, J. P.
(author)
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Viana, A.
(author)
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Vincent, P.
(author)
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Voelk, H. J.
(author)
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Volpe, F.
(author)
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Vorobiov, S.
(author)
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Vorster, M.
(author)
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Wagner, S. J.
(author)
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Ward, M.
(author)
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White, R.
(author)
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Wierzcholska, A.
(author)
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Zacharias, M.
(author)
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Zajczyk, A.
(author)
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Zdziarski, A. A.
(author)
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Zech, A.
(author)
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Zechlin, H. -S
(author)
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Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, FranceFysik
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Feinstein, F.
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Fontaine, G.
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Fuessling, M.
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Kossakowski, R.
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Laffon, H.
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Lamanna, G.
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Lennarz, D.
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Lopatin, A.
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Pita, S.
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Reimer, A.
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Renaud, M.
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de los Reyes, R.
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Rob, L.
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Rosier-Lees, S.
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Rulten, C. B.
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Ruppel, J.
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Sahakian, V.
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Santangelo, A.
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Schlickeiser, R.
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Schulz, A.
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Skilton, J. L.
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Spengler, G.
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Stawarz, L.
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Steenkamp, R.
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Stegmann, C.
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Stinzing, F.
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Stycz, K.
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Sushch, I.
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Szostek, A.
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Tavernet, J. -P
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Terrier, R.
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Tluczykont, M.
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Valerius, K.
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van Eldik, C.
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Vasileiadis, G.
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Venter, C.
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Vialle, J. P.
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Viana, A.
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Vincent, P.
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Voelk, H. J.
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Volpe, F.
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Vorobiov, S.
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Vorster, M.
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Wagner, S. J.
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Ward, M.
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White, R.
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Wierzcholska, A.
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Zacharias, M.
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Zajczyk, A.
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Zdziarski, A. A.
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Zech, A.
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Zechlin, H. -S
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