{"paper":{"title":"Spectral analysis and interpretation of the \\gamma-ray emission from the Starburst galaxy NGC 253","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"A. Abramowski, A. A. Zdziarski, A. Balzer, A. Barnacka, A. Bochow, A. Charbonnier, A. Cheesebrough, A. Djannati-Ata\\\"i, A. Fiasson, A. F\\\"orster, A. G. Akhperjanian, A. Hillert, A. Jacholkowska, A. Lopatin, A. Marcowith, A. Quirrenbach, A. Reimer, A. Santangelo, A. Schulz, A. Szostek, A. Viana, A. Wierzcholska, A. Zajczyk, A. Zech, B. Degrange, B. Giebels, B. Gl\\\"uck, B. Kh\\'elifi, B. Nicholas, B. Opitz, B. Peyaud, B. Rudak, C. Boisson, C. B. Rulten, C. -C. Lu, C. Couturier, C. Deil, C. Jahn, C. L. Naumann, C. Stegmann, C. van Eldik, C. Venter, D. A. Sanchez, D. G\\\"oring, D. Hampf, D. Horns, D. Klochkov, D. Lennarz, D. Nedbal, D. Nekrassov, E. Birsin, E. de O\\~na Wilhelmi, E. Moulin, F. Acero, F. Aharonian, F. Brun, F. Feinstein, F. Krayzel, F. Rieger, F. Sheidaei, F. Stinzing, F. Volpe, G. Anton, G. Cologna, G. Dubus, G. Fontaine, G. Heinzelmann, G. Henri, G. Hermann, G. Lamanna, G. Maurin, G. Pelletier, G. P\\\"uhlhofer, G. Rowell, G. Spengler, G. Vasileiadis, H.E.S.S. collaboration, H. Gast, H. J. Dickinson, H. J. V\\\"olk, H. Laffon, H. Sol, H. -S. Zechlin, I. B\\\"usching, I. D. Davids, I. Jung, I. Oya, I. Sushch, J. A. Hinton, J. Becker, J. Biteau, J. Bolmont, J. Brucker, J. Conrad, J. D. Hague, J. Dyks, J. F. Glicenstein, J. Hahn, J. Harris, J. L. Skilton, J. Masbou, J. M\\'ehault, J. Niemiec, J. Perez, J. -P. Lenain, J. -P. Tavernet, J. Ripken, K. Bernl\\\"ohr, K. Dutson, K. Egberts, K. Katarzy\\'nski, K. Kosack, K. Stycz, K. Valerius, L. Fallon, L. G\\'erard, L. O'C. Drury, L. Rob, \\L. Stawarz, M. A. Kastendieck, M. Cerruti, M. C. Medina, M. Dalton, M. de Naurois, M. Dyrda, M. F\\\"u{\\ss}ling, M. Gajdus, M. Hauser, M. -H. Grondin, M. Holler, M. Jamrozy, M. K. Daniel, M. Mayer, M. Mohamed, M. Naumann-Godo, M. Ostrowski, M. Panter, M. Paz Arribas, M. Punch, M. Raue, M. Renaud, M. Tluczykont, M. V. Fernandes, M. Vorster, M. Ward, M. Zacharias, N. Maxted, N. Nguyen, Nu. Komin, N. W. Pekeur, O. Reimer, P. Bordas, P. Brun, P. Eger, P. Espigat, P. Hofverberg, P. M. Chadwick, P. -O. Petrucci, P. Vincent, R. C. G. Chaves, R. de los Reyes, R. Kossakowski, R. Moderski, R. Schlickeiser, R. Steenkamp, R. Terrier, R. White, S. Carrigan, S. Casanova, S. Fegan, S. H\\\"affner, S. Heinz, S. J. Nolan, S. J. Wagner, S. Kaufmann, S. Ohm, S. Pita, S. Rosier-Lees, S. Schwarzburg, S. Schwemmer, S. Vorobiov, T. Bulik, T. Garrigoux, T. J. L. McComb, T. Kneiske, T. Lohse, U. Katz, U. Schwanke, V. Marandon, V. Sahakian, W. Domainko, W. Hofmann, W. Klu\\'zniak, Y. A. Gallant, Y. Becherini","submitted_at":"2012-05-24T15:30:01Z","abstract_excerpt":"Very-high-energy (VHE; E >100 GeV) and high-energy (HE; 100 MeV < E < 100 GeV) data from \\gamma-ray observations performed with the H.E.S.S. telescope array and the Fermi-LAT instrument, respectively, are analysed in order to investigate the non-thermal processes in the starburst galaxy NGC 253. The VHE \\gamma-ray data can be described by a power law in energy with differential photon index \\Gamma=2.14 \\pm 0.18_stat \\pm 0.30_sys and differential flux normalisation at 1 TeV of F_0 = (9.6 \\pm 1.5_stat (+5.7,-2.9)_sys) x 10^{-14} TeV^{-1} cm^{-2} s^{-1}. A power-law fit to the differential HE \\ga"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.5485","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}