{"paper":{"title":"H.E.S.S. discovery of VHE gamma-rays from the quasar PKS 1510-089","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Abramowski, A.A. Zdziarski, A. Balzer, A. Barnacka, A. Bochow, 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. Behera, B. Degrange, B. Giebels, B. Gl\\\"uck, B. Kh\\'elifi, B. Opitz, B. Peyaud, B. Rudak, C. Boisson, C.B. Rulten, C.-C. Lu, C. Couturier, C. Deil, C. Farnier, C. Jahn, C.L. Naumann, C. Stegmann, C. Trichard, C. van Eldik, C. Venter, D.A. Sanchez, D. Fernandez, D. G\\\"oring, D. Hampf, D. Horns, D. Klochkov, D. Kolitzus, D. Lennarz, D. Nedbal, D. Wouters, E. Birsin, E. de Ona 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.D. Davids, I. Jung, I. Oya, I. Sushch, J.A. Hinton, J. Becker Tjus, J. Biteau, J. Bolmont, J. Brucker, J. Conrad, J.D. Hague, J. Dyks, J.F. Glicenstein, J. Hahn, J. Harris, J. Lefaucheur, 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. Katarzynski, K. Kosack, K. Stycz, K. Valerius, L. Fallon, 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. Grudzi\\'nska, M. Hauser, M.-H. Grondin, M. Holler, M. Jamrozy, M.K. Daniel, M. Lemoine-Goumard, 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. deWilt, P. Eger, P. Espigat, P. Hofverberg, P.M. Chadwick, P.-O. Petrucci, P.P. Kr\\\"uger, P. Vincent, R.C.G. Chaves, R. de los Reyes, R.D. Parsons, R. Kossakowski, R. Moderski, R. Schlickeiser, R. Steenkamp, R. Terrier, R. White, S. Balenderan, S. Carrigan, S. Casanova, S. Colafrancesco, S. Fegan, S. H\\\"affner, S. Heinz, S.J. Nolan, S.J. Wagner, S. Kaufmann, S. Klepser, S. Ohm, S. Pita, S. Raab, S. Rosier-Lees, S. Schwarzburg, S. Schwemmer, S. Vorobiov, T. Bulik, T. Garrigoux, T.J.L. McComb, T. Kneiske, T. Lohse, U. Katz, U. Menzler, U. Schwanke, V. Marandon, V. Sahakian, W. Domainko, W. Hofmann, W. Klu\\'zniak, Y.A. Gallant, Y. Becherini","submitted_at":"2013-04-30T17:07:37Z","abstract_excerpt":"The quasar PKS 1510-089 (z=0.361) was observed with the H.E.S.S. array of imaging atmospheric Cherenkov telescopes during high states in the optical and GeV bands, to search for very high energy (VHE, defined as E >= 0.1 TeV) emission. VHE \\gamma-rays were detected with a statistical significance of 9.2 standard deviations in 15.8 hours of H.E.S.S. data taken during March and April 2009. A VHE integral flux of I(0.15 TeV < E < 1.0 TeV) = (1.0 +- 0.2 (stat) +- 0.2 (sys) x 10^{-11} cm^{-2}s^{-1} is measured. The best-fit power law to the VHE data has a photon index of \\Gamma=5.4 +- 0.7 (stat) +-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.8071","kind":"arxiv","version":1},"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"}