{"paper":{"title":"Flux upper limits for 47 AGN observed with H.E.S.S. in 2004-2011","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"A. Abramowski, A.A. Zdziarski, A. Balzer, A. Barnacka, A. Cheesebrough, A. Djannati-Ata\\\"i, A. Fiasson, A. F\\\"orster, A.G. Akhperjanian, A. Hillert, A. Jacholkowska, A. Lemi\\`ere, A. Lopatin, A. Marcowith, A.M. Taylor, A. Quirrenbach, A. Reimer, A. Santangelo, A. Schulz, A. Szostek, A. Viana, A. Wierzcholska, A. W\\\"ornlein, A. Zajczyk, A. Zech, B. Degrange, B. Giebels, B. Kh\\'elifi, B. Opitz, B. Peyaud, B. Rudak, B. van Soelen, C. Boisson, C.B. Rulten, C.-C. Lu, C. Couturier, C. Deil, C. Farnier, C. Jahn, C.L. Naumann, C. Romoli, C. Stegmann, C. Trichard, C. van Eldik, C. Venter, D.A. Sanchez, D. Fernandez, D. Horns, D. Klochkov, D. Kolitzus, D. Lennarz, D. Wouters, E. Ang\\\"uner, E. Birsin, E. Bissaldi, E. de O\\~na Wilhelmi, E. Moulin, F. Aharonian, F. Ait Benkhali, F. Brun, F. Feinstein, F. Jankowsky, F. Krayzel, F. Rieger, F. Sch\\\"ussler, F. Spies, F. Stinzing, F. Volpe, G. Anton, G. Cologna, G. Dubus, G. Fontaine, G. Giavitto, 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.J. Dickinson, H.J. V\\\"olk, H. Laffon, H. Poon, 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. Dyks, J.F. Glicenstein, J. Hahn, J. Harris, J. Lefaucheur, J. M\\'ehault, J. Niemiec, J. Perez, J.-P. Lenain, J.-P. Tavernet, K. Bernl\\\"ohr, K. Dutson, K. Egberts, K. Katarzy\\'nski, K. Kosack, K. Stycz, K. Valerius, L. Oakes, L.O'C. Drury, L. Rob, \\L. Stawarz, M.A. Kastendieck, M. B\\\"ottcher, M. Cerruti, M. Chr\\'etien, M. Dalton, M. de Naurois, M. Dyrda, M. F\\\"u{\\ss}ling, M. Gajdus, M. Grudzi\\'nska, M.-H. Grondin, M. Holler, M. Jamrozy, M. Janiak, M.K. Daniel, M. Kieffer, M. Lemoine-Goumard, M. Mayer, M. Meyer, M. Mohamed, M. Ostrowski, M. Panter, M. Paz Arribas, M. Punch, M. Raue, M. Renaud, M. Tluczykont, M.V. Fernandes, M. Vorster, M. Ward, M. Weidinger, M. Zacharias, N. Maxted, Nu. Komin, N.W. Pekeur, O. Hervet, O. Reimer, P. Bordas, P. Brun, P. deWilt, P. Eger, P. Espigat, P. Hofverberg, P.J. Meintjes, P.M. Chadwick, P.-O. Petrucci, P.P. Kr\\\"uger, P. Vincent, P. Wagner, P. Willmann, Q. Weitzel, R.C.G. Chaves, R. Chalme-Calvet, R. de los Reyes, R.D. Parsons, R. Marx, R. Moderski, R. Schlickeiser, R. Steenkamp, R. Terrier, R. White, S. Balenderan, S. Carrigan, S. Casanova, S. Colafrancesco, S. Fegan, S. H\\\"affner, S.J. Nolan, S.J. Wagner, S. Kaufmann, S. Klepser, S. Krakau, S. Ohm, S. Pita, S. Raab, S. Rosier-Lees, S. Schwarzburg, S. Schwemmer, T. Bulik, T. Edwards, T. Garrigoux, T.J.L. McComb, T. Kneiske, T. Lohse, T. Murach, T. Tavernier, T. Vuillaume, U. Katz, U. Menzler, U. Schwanke, V. Marandon, V. Sahakian, V. Zabalza, W. Domainko, W. Hofmann, W. Klu\\'zniak, Y.A. Gallant, Y. Becherini, Y. Cui","submitted_at":"2014-02-10T23:52:07Z","abstract_excerpt":"About 40% of the observation time of the High Energy Stereoscopic System (H.E.S.S.) is dedicated to studying active galactic nuclei (AGN), with the aim of increasing the sample of known extragalactic very-high-energy (VHE, E>100 GeV) sources and constraining the physical processes at play in potential emitters. H.E.S.S. observations of AGN, spanning a period from April 2004 to December 2011, are investigated to constrain their gamma-ray fluxes. Only the 47 sources without significant excess detected at the position of the targets are presented. Upper limits on VHE fluxes of the targets were co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.2332","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"}