Repozytorium Uniwersytetu Jagiellońskiego

Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301−243 with H.E.S.S.

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Abramowski, A.

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Acero, F.

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Aharonian, F.

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Ait Benkhali, F.

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Akhperjanian, A. G.

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Angüner, E.

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Anton, G.

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Balenderan, S.

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Balzer, A.

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Barnacka, Anna [SAP14011957]

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Becherini, Y.

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Becker Tjus, J.

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Bernlöhr, K.

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Birsin, E.

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Bissaldi, E.

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Biteau, J.

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Böttcher, M.

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Boisson, C.

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Bolmont, J.

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Bordas, P.

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Brucker, J.

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Brun, F.

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Brun, P.

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Bulik, T.

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Carrigan, S.

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Casanova, S.

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Cerruti, M.

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Chadwick, P. M.

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Chalme-Calvet, R.

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Chaves, R. C. G.

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Cheesebrough, A.

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Chrétien, M.

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Colafrancesco, S.

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Cologna, G.

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Conrad, J.

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Couturier, C.

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Dalton, M.

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Daniel, M. K.

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Davids, I. D.

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Degrange, B.

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Deil, C.

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deWilt, P.

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Dickinson, H. J.

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Djannati-Ataï, A.

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Domainko, W.

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Drury, L. O’C.

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Dubus, G.

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Dutson, K.

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Dyks, J.

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Dyrda, M.

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Edwards, T.

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Egberts, K.

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Eger, P.

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Espigat, P.

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Farnier, C.

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Fegan, S.

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Feinstein, F.

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Fernandes, M. V.

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Fernandez, D.

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Fiasson, A.

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Fontaine, G.

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Förster, A.

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Füßling, M.

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Gajdus, M.

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Gallant, Y. A.

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Garrigoux, T.

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Giebels, B.

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Glicenstein, J. F.

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Grondin, M.-H.

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Grudzińska, M.

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Häffner, S.

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Hague, J. D.

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Hahn, J.

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Harris, J.

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Heinzelmann, G.

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Henri, G.

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Hermann, G.

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Hervet, O.

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Hillert, A.

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Hinton, J. A.

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Hofmann, W.

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Hofverberg, P.

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Holler, M.

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Horns, D.

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Jacholkowska, A.

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Jahn, C.

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Jamrozy, Marek [SAP11016371]

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Janiak, M.

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Jankowsky, F.

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Jung, I.

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Kastendieck, M. A.

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Katarzyński, K.

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Katz, U.

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Kaufmann, S.

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Khélifi, B.

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Kieffer, M.

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Klepser, S.

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Klochkov, D.

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Kluźniak, W.

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Kneiske, T.

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Kolitzus, D.

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Komin, Nu.

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Kosack, K.

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Krakau, S.

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Krayzel, F.

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Krüger, P. P.

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Laffon, H.

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Lamanna, G.

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Lefaucheur, J.

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Lemoine-Goumard, M.

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Lenain, J.-P.

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Lennarz, D.

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Lohse, T.

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Lopatin, A.

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Lu, C.-C.

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Marandon, V.

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Marcowith, A.

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Marx, R.

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Maurin, G.

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Maxted, N.

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Mayer, M.

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McComb, T. J. L.

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Medina, M. C.

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Méhault, J.

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Menzler, U.

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Meyer, M.

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Moderski, R.

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Mohamed, M.

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Moulin, E.

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Murach, T.

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Naumann, C. L.

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de Naurois, M.

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Nedbal, D.

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Niemiec, J.

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Nolan, S. J.

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Oakes, L.

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Ohm, S.

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de Oña Wilhelmi, E.

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Opitz, B.

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Ostrowski, Michał [SAP11009779]

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Oya, I.

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Panter, M.

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Parsons, R. D.

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Paz Arribas, M.

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Pekeur, N. W.

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Pelletier, G.

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Perez, J.

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Petrucci, P.-O.

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Peyaud, B.

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Pita, S.

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Poon, H.

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Pühlhofer, G.

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Punch, M.

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Quirrenbach, A.

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Raab, S.

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Raue, M.

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Reimer, A.

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Reimer, O.

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Renaud, M.

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de los Reyes, R.

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Rieger, F.

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Rob, L.

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Rosier-Lees, S.

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Rowell, G.

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Rudak, B.

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Rulten, C. B.

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Sahakian, V.

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Sanchez, D. A.

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Santangelo, A.

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Schlickeiser, R.

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Schüssler, F.

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Schulz, A.

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Schwanke, U.

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Schwarzburg, S.

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Schwemmer, S.

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Sol, H.

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Spengler, G.

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Spies, F.

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Stawarz, Łukasz [SAP11018649]

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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, Anna [SAP11019463]

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Tavernet, J.-P.

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Terrier, R.

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Tluczykont, M.

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Trichard, C.

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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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Viana, A.

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Vincent, P.

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Völk, H. J.

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Volpe, F.

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Vorster, M.

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Wagner, S. J.

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Wagner, P.

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Ward, M.

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Weidinger, M.

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Weitzel, Q.

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White, R.

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Wierzcholska, Alicja [USOS30589]

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Willmann, P.

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Wörnlein, A.

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Wouters, D.

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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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dc.date.accessioned

2015-06-25T13:41:51Z

dc.date.available

2015-06-25T13:41:51Z

dc.date.issued

2013

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dc.identifier.issn

0004-6361

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dc.identifier.uri

http://ruj.uj.edu.pl/xmlui/handle/item/10380

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eng

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dc.title

Discovery of very high energy γ-ray emission from the BL Lacertae object PKS 0301−243 with H.E.S.S.

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dc.type

JournalArticle

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dc.abstract.en

The active galactic nucleus PKS 0301−243 (z = 0.266) is a high-synchrotron-peaked BL Lac object that is detected at high energies (HE, 100 MeV <E < 100 GeV) by Fermi/LAT. This paper reports on the discovery of PKS 0301−243 at very high energies (E > 100 GeV) by the High Energy Stereoscopic System (H.E.S.S.) from observations between September 2009 and December 2011 for a total live time of 34.9 h. Gamma rays above 200 GeV are detected at a significance of 9.4\sigma. A hint of variability at the 2.5\sigma level is found. An integral flux \mathit{I}(\mathit{E} > 200 GeV) = (3.3 \pm 1.1_{stat} \pm 0.7_{syst}) \times 10^{-12 }ph \, cm^{-2} s^{-1} and a photon index \Gamma = 4.6 \pm 0.7_{stat} \pm 0.2_{syst} are measured. Multi-wavelength light curves in HE, X-ray and optical bands show strong variability, and a minimal variability timescale of eight days is estimated from the optical light curve. A single-zone leptonic synchrotron self-Compton scenario satisfactorily reproduces the multi-wavelength data. In this model, the emitting region is out of equipartition and the jet is particle dominated. Because of its high redshift compared to other sources observed at TeV energies, the very high energy emission from PKS 0301−243 is attenuated by the extragalactic background light (EBL) and the measured spectrum is used to derive an upper limit on the opacity of the EBL.

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dc.subject.en

galaxies: active

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dc.subject.en

BL Lacertae objects: general

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dc.subject.en

BL Lacertae objects: individual: PKS 0301-243

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dc.subject.en

gamma rays: galaxies

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dc.subject.en

radiation mechanisms: non-thermal

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dc.description.volume

559

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dc.identifier.doi

10.1051/0004-6361/201321639

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dc.identifier.eissn

1432-0746

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dc.title.journal

Astronomy and Astrophysics

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dc.contributor.institution

H.E.S.S. Collaboration

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dc.language.container

eng

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dc.affiliation

Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomiczne

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dc.subtype

Article

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dc.identifier.articleid

A136

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dc.rights.original

OTHER; inne; ostateczna wersja wydawcy; po opublikowaniu; 12;

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dc.pbn.affiliation

USOS30589:UJ.WFAI.OA;

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.pointsMNiSW

[2013 A]: 35



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