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Discovery of VHE ga...
Discovery of VHE gamma-ray emission and multi-wavelength observations of the BL Lacertae object 1RXSJ101015.9-311909
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Abramowski, A. (author)
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Acero, F. (author)
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Aharonian, F. (author)
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show more...
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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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- Becherini, Yvonne (author)
- Université Paris 7 Denis Diderot
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Becker, J. (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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Buesching, 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, Michael (author)
- 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, France
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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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Cologna, G. (author)
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Conrad, J. (author)
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Dalton, M. (author)
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Daniel, M. K. (author)
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- Davids, I. D. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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Degrange, B. (author)
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Deil, C. (author)
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Dickinson, H. J. (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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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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Goering, D. (author)
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Haeffner, S. (author)
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Hague, J. D. (author)
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Hahn, J. (author)
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Hampf, D. (author)
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Harris, J. (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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Hillert, A. (author)
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Hinton, J. 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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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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Krayzel, F. (author)
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Laffon, H. (author)
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Lamanna, G. (author)
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Lenain, J. -P (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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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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Mohamed, M. (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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Pekeur, N. W. (author)
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Pelletier, G. (author)
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Perez, J. (author)
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Petrucci, P. -O (author)
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Peyaud, B. (author)
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Pita, S. (author)
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Puehlhofer, G. (author)
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- Punch, Michael (author)
- 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, France
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Quirrenbach, A. (author)
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Raue, M. (author)
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- Rayner, S. M. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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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, J. (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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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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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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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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(creator_code:org_t)
- 2012-06-13
- 2012
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 542, s. A94-
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- 1RXS J101015.9-311909 is a galaxy located at a redshift of z = 0.14 hosting an active nucleus (called AGN) belonging to the class of bright BL Lac objects. Observations at high (HE, E > 100 MeV) and very high (VHE, E > 100 GeV) energies provide insights into the origin of very energetic particles present in such sources and the radiation processes at work. We report on results from VHE observations performed between 2006 and 2010 with the H. E. S. S. instrument, an array of four imaging atmospheric Cherenkov telescopes. H. E. S. S. data have been analysed with enhanced analysis methods, making the detection of faint sources more significant. VHE emission at a position coincident with 1RXS J101015.9-311909 is detected with H. E. S. S. for the first time. In a total good-quality livetime of about 49 h, we measure 263 excess counts, corresponding to a significance of 7.1 standard deviations. The photon spectrum above 0.2 TeV can be described by a power-law with a photon index of Gamma = 3.08 +/- 0.42(stat) +/- 0.20(sys). The integral flux above 0.2 TeV is about 0.8% of the flux of the Crab nebula and shows no significant variability over the time reported. In addition, public Fermi/LAT data are analysed to search for high energy emission from the source. The Fermi/LAT HE emission in the 100 MeV to 200 GeV energy range is significant at 8.3 standard deviations in the chosen 25-month dataset. UV and X-ray contemporaneous observations with the Swift satellite in May 2007 are also reported, together with optical observations performed with the atom telescope located at the H. E. S. S. site. Swift observations reveal an absorbed X-ray flux of F(0.3-7) keV = 1.04(-0.05)(+0.04) x 10(-11) erg cm(-2) s(-1) in the 0.3-7 keV range. Finally, all the available data are used to study the multi-wavelength properties of the source. The spectral energy distribution (SED) can be reproduced using a simple one-zone Synchrotron Self Compton (SSC) model with emission from a region with a Doppler factor of 30 and a magnetic field between 0.025 and 0.16 G. These parameters are similar to those obtained for other sources of this type.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- gamma rays: galaxies
- galaxies: active
- BL Lacertae objects: individual: 1RXS J101015.9-311909
- Astropartikelfysik
- Astroparticle Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Abramowski, A.
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Acero, F.
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Aharonian, F.
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Akhperjanian, A. ...
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Anton, G.
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Balzer, A.
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show more...
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Barnacka, A.
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Becherini, Yvonn ...
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Becker, J.
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Bernloehr, K.
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Birsin, E.
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Biteau, J.
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Bochow, A.
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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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Buesching, I.
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Carrigan, S.
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Casanova, S.
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Cerruti, M.
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Punch, Michael
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Charbonnier, A.
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Chaves, R. C. G.
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Cheesebrough, A.
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Cologna, G.
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Conrad, J.
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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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Dickinson, H. J.
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Djannati-Atai, 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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Egberts, K.
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Eger, P.
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Espigat, P.
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Fallon, L.
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Fegan, S.
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Feinstein, F.
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Fernandes, M. V.
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Fiasson, A.
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Fontaine, G.
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Foerster, A.
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Fuessling, M.
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Gallant, Y. A.
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Gast, H.
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Gerard, L.
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Gerbig, D.
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Giebels, B.
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Glicenstein, J. ...
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Glueck, B.
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Goering, D.
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Haeffner, S.
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Hague, J. D.
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Hahn, J.
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Hampf, D.
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Harris, J.
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Hauser, M.
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Heinz, S.
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Heinzelmann, G.
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Henri, G.
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Hermann, G.
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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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de Jager, O. C.
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Jahn, C.
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Jamrozy, M.
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Jung, I.
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Kastendieck, M. ...
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Katarzynski, K.
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Katz, U.
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Kaufmann, S.
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Keogh, D.
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Khelifi, B.
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Klochkov, D.
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Kluzniak, W.
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Kneiske, T.
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Komin, Nu.
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Kosack, K.
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Kossakowski, R.
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Krayzel, F.
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Laffon, H.
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Lamanna, G.
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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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Masbou, J.
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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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Mehault, J.
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Moderski, R.
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Mohamed, M.
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Moulin, E.
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Naumann, C. L.
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Naumann-Godo, M.
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de Naurois, M.
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Nedbal, D.
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Nekrassov, D.
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Nguyen, N.
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Nicholas, B.
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Niemiec, J.
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Nolan, S. J.
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Ohm, S.
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Wilhelmi, E. de ...
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Opitz, B.
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Ostrowski, M.
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Oya, I.
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Panter, M.
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Arribas, M. Paz
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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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Puehlhofer, G.
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Quirrenbach, A.
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Raue, M.
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Rayner, S. 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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Ripken, J.
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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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Schulz, A.
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Schwanke, U.
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Schwarzburg, S.
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Schwemmer, S.
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Sheidaei, F.
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Skilton, J. L.
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Sol, H.
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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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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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Linnaeus University
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Stockholm University