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HESS and Fermi-LAT discovery of gamma-rays from the blazar 1ES 1312-423

Attila Abramowski, F. Acero, Felix A. Aharonian, A. G. Akhperjanian, Ekrem Oǧuzhan Angüner, Gisela Anton, Shangkari Balenderan, Arnim Balzer, Anna Barnacka, Yvonne Becherini, J. Becker Tjus, K. Bernlöhr, E. Birsin, E. Bissaldi, Jonathan Biteau, Catherine Boisson, J. Bolmont, Pol Bordas, J. Brucker, Francois Brun, Pierre Brun, Tomasz Bulik, Svenja Carrigan, Sabrina Casanova, M. Cerruti, Paula M. Chadwick, R. Chalme-Calvet, Ryan C. G. Chaves, A. Cheesebrough, M. Chretien, Sergio Colafrancesco, Gabriele Cologna, Jan Conrad, C. Couturier, M. Dalton, M. K. Daniel, I. D. Davids, B. Degrange, C. Deil, P. deWilt, H. J. Dickinson, A. Djannati-Ataï, W. Domainko, L. O'C. Drury, G. Dubus, K. Dutson, J. Dyks, M. Dyrda, T. Edwards, Kathrin Egberts, P. Eger, P. Espigat, C. Farnier, S. Fegan, F. Feinstein, M. V. Fernandes, D. Fernandez, A. Fiasson, G. Fontaine, A. Foerster, M. Fuessling, M. Gajdus, Y. A. Gallant, T. Garrigoux, H. Gast, B. Giebels, J. F. Glicenstein, D. Goering, M-H. Grondin, M. Grudzinska, S. Haeffner, J. D. Hague, J. Hahn, J. Harris, G. Heinzelmann, G. Henri, G. Hermann, O. Hervet, A. Hillert, James Anthony Hinton, W. Hofmann, P. Hofverberg, M. Holler, D. Horns, A. Jacholkowska, C. Jahn, M. Jamrozy, M. Janiak, F. Jankowsky, I. Jung, M. A. Kastendieck, K. Katarzynski, U. Katz, S. Kaufmann, B. Khelifi, M. Kieffer, S. Klepser, D. Klochkov, W. Kluzniak, T. Kneiske, D. Kolitzus, Nu. Komin, K. Kosack, S. Krakau, F. Krayzel, P. P. Krueger, H. Laffon, G. Lamanna, J. Lefaucheur, M. Lemoine-Goumard, J-P. Lenain, D. Lennarz, T. Lohse, A. Lopatin, C-C. Lu, V. Marandon, A. Marcowith, G. Maurin, N. Maxted, M. Mayer, T. J. L. McComb, M. C. Medina, J. Mehault, U. Menzler, M. Meyer, R. Moderski, M. Mohamed, E. Moulin, T. Murach, C. L. Naumann, M. de Naurois, D. Nedbal, J. Niemiec, S. J. Nolan, L. Oakes, S. Ohm, E. de Ona Wilhelmi, B. Opitz, M. Ostrowski, I. Oya, M. Panter, R. D. Parsons, M. Paz Arribas, N. W. Pekeur, G. Pelletier, J. Perez, P-O. Petrucci, B. Peyaud, S. Pita, H. Poon, G. Puehlhofer, M. Punch, A. Quirrenbach, S. Raab, M. Raue, A. Reimer, O. Reimer, M. Renaud, R. de los Reyes, F. Rieger, L. Rob, S. Rosier-Lees, G. Rowell, B. Rudak, C. B. Rulten, V. Sahakian, David M. Sanchez, A. Santangelo, R. Schlickeiser, F. Schuessler, A. Schulz, U. Schwanke, S. Schwarzburg, S. Schwemmer, H. Sol, G. Spengler, F. Spiess, L. Stawarz, R. Steenkamp, Christian Stegmann, F. Stinzing, K. Stycz, Iurii Sushch, A. Szostek, J-P. Tavernet, R. Terrier, M. Tluczykont, C. Trichard, K. Valerius, C. van Eldik, G. Vasileiadis, C. Venter, A. Viana, P. Vincent, H. J. Voelk, F. Volpe, M. Vorster, S. J. Wagner, P. Wagner, M. Ward, M. Weidinger, R. White, A. Wierzcholska, P. Willmann, A. Woernlein, D. Wouters, M. Zacharias, A. Zajczyk, A. A. Zdziarski, Alraune Zech, H-S. Zechlin, J. S. Perkins, R. Ojha, J. Stevens, P. G. Edwards, M. Kadler

  • A deep observation campaign carried out by the High Energy Stereoscopic System (HESS) on Centaurus A enabled the discovery of gamma-rays from the blazar 1ES 1312-423, 2 degrees away from the radio galaxy. With a differential flux at 1 TeV of phi(1 TeV) = (1.9 +/- 0.6(stat) +/- 0.4(sys)) x 10(-13) cm(-2) s(-1) TeV-1 corresponding to 0.5 per cent of the Crab nebula differential flux and a spectral index Gamma = 2.9 +/- 0.5(stat) +/- 0.2(sys), 1ES 1312-423 is one of the faintest sources ever detected in the very high energy (E > 100 GeV) extragalactic sky. A careful analysis using three and a half years of Fermi Large Area Telescope (Fermi-LAT) data allows the discovery at high energies (E > 100 MeV) of a hard spectrum (Gamma = 1.4 +/- 0.4(stat) +/- 0.2(sys)) source coincident with 1ES 1312-423. Radio, optical, UV and X-ray observations complete the spectral energy distribution of this blazar, now covering 16 decades in energy. The emission is successfully fitted with a synchrotron self-Compton model for the non-thermal component,A deep observation campaign carried out by the High Energy Stereoscopic System (HESS) on Centaurus A enabled the discovery of gamma-rays from the blazar 1ES 1312-423, 2 degrees away from the radio galaxy. With a differential flux at 1 TeV of phi(1 TeV) = (1.9 +/- 0.6(stat) +/- 0.4(sys)) x 10(-13) cm(-2) s(-1) TeV-1 corresponding to 0.5 per cent of the Crab nebula differential flux and a spectral index Gamma = 2.9 +/- 0.5(stat) +/- 0.2(sys), 1ES 1312-423 is one of the faintest sources ever detected in the very high energy (E > 100 GeV) extragalactic sky. A careful analysis using three and a half years of Fermi Large Area Telescope (Fermi-LAT) data allows the discovery at high energies (E > 100 MeV) of a hard spectrum (Gamma = 1.4 +/- 0.4(stat) +/- 0.2(sys)) source coincident with 1ES 1312-423. Radio, optical, UV and X-ray observations complete the spectral energy distribution of this blazar, now covering 16 decades in energy. The emission is successfully fitted with a synchrotron self-Compton model for the non-thermal component, combined with a blackbody spectrum for the optical emission from the host galaxy.show moreshow less

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Author details:Attila Abramowski, F. Acero, Felix A. AharonianORCiDGND, A. G. Akhperjanian, Ekrem Oǧuzhan AngünerGND, Gisela Anton, Shangkari Balenderan, Arnim BalzerGND, Anna Barnacka, Yvonne Becherini, J. Becker Tjus, K. Bernlöhr, E. Birsin, E. Bissaldi, Jonathan Biteau, Catherine Boisson, J. Bolmont, Pol BordasORCiDGND, J. Brucker, Francois Brun, Pierre Brun, Tomasz Bulik, Svenja Carrigan, Sabrina CasanovaGND, M. Cerruti, Paula M. Chadwick, R. Chalme-Calvet, Ryan C. G. Chaves, A. Cheesebrough, M. Chretien, Sergio Colafrancesco, Gabriele Cologna, Jan Conrad, C. Couturier, M. Dalton, M. K. Daniel, I. D. Davids, B. Degrange, C. Deil, P. deWilt, H. J. Dickinson, A. Djannati-Ataï, W. Domainko, L. O'C. Drury, G. Dubus, K. Dutson, J. Dyks, M. Dyrda, T. Edwards, Kathrin EgbertsGND, P. Eger, P. Espigat, C. Farnier, S. Fegan, F. Feinstein, M. V. Fernandes, D. Fernandez, A. Fiasson, G. Fontaine, A. Foerster, M. Fuessling, M. Gajdus, Y. A. Gallant, T. Garrigoux, H. Gast, B. Giebels, J. F. Glicenstein, D. Goering, M-H. Grondin, M. Grudzinska, S. Haeffner, J. D. Hague, J. Hahn, J. Harris, G. Heinzelmann, G. Henri, G. Hermann, O. Hervet, A. Hillert, James Anthony HintonGND, W. Hofmann, P. Hofverberg, M. Holler, D. Horns, A. Jacholkowska, C. Jahn, M. Jamrozy, M. Janiak, F. Jankowsky, I. Jung, M. A. Kastendieck, K. Katarzynski, U. Katz, S. Kaufmann, B. Khelifi, M. Kieffer, S. Klepser, D. Klochkov, W. Kluzniak, T. Kneiske, D. Kolitzus, Nu. Komin, K. Kosack, S. Krakau, F. Krayzel, P. P. Krueger, H. Laffon, G. Lamanna, J. Lefaucheur, M. Lemoine-Goumard, J-P. Lenain, D. Lennarz, T. Lohse, A. Lopatin, C-C. Lu, V. Marandon, A. Marcowith, G. Maurin, N. Maxted, M. Mayer, T. J. L. McComb, M. C. Medina, J. Mehault, U. Menzler, M. Meyer, R. Moderski, M. Mohamed, E. Moulin, T. Murach, C. L. Naumann, M. de Naurois, D. Nedbal, J. Niemiec, S. J. Nolan, L. Oakes, S. Ohm, E. de Ona Wilhelmi, B. Opitz, M. Ostrowski, I. Oya, M. Panter, R. D. Parsons, M. Paz Arribas, N. W. Pekeur, G. Pelletier, J. Perez, P-O. Petrucci, B. Peyaud, S. Pita, H. Poon, G. Puehlhofer, M. Punch, A. Quirrenbach, S. Raab, M. Raue, A. Reimer, O. Reimer, M. Renaud, R. de los Reyes, F. Rieger, L. Rob, S. Rosier-Lees, G. Rowell, B. Rudak, C. B. Rulten, V. Sahakian, David M. SanchezORCiD, A. Santangelo, R. Schlickeiser, F. Schuessler, A. Schulz, U. Schwanke, S. Schwarzburg, S. Schwemmer, H. Sol, G. Spengler, F. Spiess, L. Stawarz, R. Steenkamp, Christian StegmannORCiDGND, F. Stinzing, K. Stycz, Iurii SushchORCiDGND, A. Szostek, J-P. Tavernet, R. Terrier, M. Tluczykont, C. Trichard, K. Valerius, C. van Eldik, G. Vasileiadis, C. Venter, A. Viana, P. Vincent, H. J. Voelk, F. Volpe, M. Vorster, S. J. Wagner, P. Wagner, M. Ward, M. Weidinger, R. White, A. Wierzcholska, P. Willmann, A. Woernlein, D. Wouters, M. Zacharias, A. Zajczyk, A. A. Zdziarski, Alraune ZechORCiD, H-S. Zechlin, J. S. Perkins, R. Ojha, J. Stevens, P. G. Edwards, M. Kadler
DOI:https://doi.org/10.1093/mnras/stt1081
ISSN:0035-8711
Title of parent work (English):Monthly notices of the Royal Astronomical Society
Publisher:Oxford Univ. Press
Place of publishing:Oxford
Publication type:Article
Language:English
Year of first publication:2013
Publication year:2013
Creating corporation:HESS Collaboration
Release date:2017/03/26
Tag:BL Lacertae objects: individual: 1ES 1312-423; galaxies: active; galaxies: jets; gamma-rays: galaxies; radiation mechanisms: non-thermal
Volume:434
Issue:3
Number of pages:13
First page:1889
Last Page:1901
Funding institution:German Ministry for Education and Research (BMBF); Max Planck Society; French Ministry for Research; CNRS-IN2P3; Astroparticle Interdisciplinary Programme of the CNRS; UK Particle Physics and Astronomy Research Council (PPARC); IPNP of the Charles University; South African Department of Science and Technology; National Research Foundation; University of Namibia; Istituto Nazionale di Astrofisica in Italy; Centre National d'Etudes Spatiales in France; Commonwealth of Australia; NASA [NNH09ZDA001N]; NASA post-doctoral Programme at the Goddard Space Flight Center
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
Peer review:Referiert
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