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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Discovery of very high energy γ-ray emission from centaurus a with H.E.S.S.
Astrophysical Journal, Volume 695, No. 1, Year 2009
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Description
We report the discovery of faint very high energy (VHE; E > 100GeV) γ-ray emission from the radio galaxy Centaurus A in observations performed with the High Energy Stereoscopic System (H.E.S.S.) experiment, an imaging atmospheric Cherenkov telescope array consisting of four telescopes located in Namibia. Centaurus A has been observed for more than 120hr. A signal with a statistical significance of 5.0σ is detected from the region including the radio core and the inner kpc jets. The integral flux above an energy threshold of 250 GeV is measured to be 0.8% of the flux of the Crab Nebula (apparent luminosity: L(>250GeV) 2.6 × 1039ergs-1, adopting a distance of 3.8Mpc). The spectrum can be described by a power law with a photon index of 2.7 0.5stat 0.2sys. No significant flux variability is detected in the data set. However, the low flux only allows detection of variability on the timescale of days to flux increments above a factor of 15-20 (3σ and 4σ, respectively). The discovery of VHE γ-ray emission from Centaurus A reveals particle acceleration in the source to >TeV energies and, together with M87, establishes radio galaxies as a class of VHE emitters. © 2009. The American Astronomical Society. All rights reserved..
Authors & Co-Authors
Aharonian, F. A.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Ireland, Dublin
Institiúid Ard-lénn Bhaile Átha Cliath
Akhperjanian, Ashot G.
Armenia, Yerevan
Yerevan Physics Institute
Anton, Gisela K.Stycz
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
de Almeida, Ulisses Barres
United Kingdom, Durham
Durham University
Brazil, Brasilia
Ministry of Education Brazil
Bazer-Bachi, A. R.
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Becherini, Yvonne
France, Paris
Cnrs Centre National de la Recherche Scientifique
Behera, Bagmeet
Germany, Heidelberg
Universität Heidelberg
Benbow, Wystan R.
United States, Amado
Fred Lawrence Whipple Observatory
Bernlöhr, Konrad
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Germany, Berlin
Humboldt-universität zu Berlin
Boisson, Catherine
France, Paris
L'observatoire de Paris
Bochow, Anne
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Borrel, V.
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Brion, E.
France, Gif-sur-yvette
Cea Saclay
Brucker, Julia
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Brun, Pierre
France, Gif-sur-yvette
Cea Saclay
Buehler, Rolf
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Bulk, Tomasz
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Büsching, Ingo
South Africa, Potchefstroom
North-west University
Boutelier, Timothe
France, Saint Martin D'heres
Université Grenoble Alpes
Chadwick, Paula M.
United Kingdom, Durham
Durham University
Charbonnier, Ald́ee
France, Paris
Sorbonne Université
Chaves, Ryan C.G.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Cheesebrough, A.
United Kingdom, Durham
Durham University
Chounet, L. M.
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Clapson, André Claude
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Coignet, G. G.
France, Annecy
Laboratoire D'annecy-le-vieux de Physique Des Particules Lapp
Dalton, Matthew L.
Germany, Berlin
Humboldt-universität zu Berlin
Daniel, Michael K.
United Kingdom, Durham
Durham University
Davids, Isak Delberth
South Africa, Potchefstroom
North-west University
Namibia, Windhoek
University of Namibia
Degrange, Bernard
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Deil, Christoph
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Dickinson, Hugh J.
United Kingdom, Durham
Durham University
Djannati-Ata, A.
France, Paris
Cnrs Centre National de la Recherche Scientifique
Domainko, Wilfried F.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Drury, Luke O'C
Ireland, Dublin
Institiúid Ard-lénn Bhaile Átha Cliath
Dubois, Florent
France, Annecy
Laboratoire D'annecy-le-vieux de Physique Des Particules Lapp
Dubus, Guillaume
France, Saint Martin D'heres
Université Grenoble Alpes
Dyks, Jarosław
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Dyrda, Michael
Poland, Krakow
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
Egberts, Kathrin
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Emmanoulopoulos, Dimitrios
Germany, Heidelberg
Universität Heidelberg
Espigat, P.
France, Paris
Cnrs Centre National de la Recherche Scientifique
Farnier, Christian
France, Montpellier
Université de Montpellier
Feinstein, Fabrice
France, Montpellier
Université de Montpellier
Fiasson, Armand
France, Montpellier
Université de Montpellier
Förster, Andreas
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Fontaine, Gérard
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Füling, Matthias
Germany, Berlin
Humboldt-universität zu Berlin
Gabici, Stefano
Ireland, Dublin
Institiúid Ard-lénn Bhaile Átha Cliath
Gallant, Yves A.
France, Montpellier
Université de Montpellier
Gérard, Lucie
France, Paris
Cnrs Centre National de la Recherche Scientifique
Giebels, Berrie
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Glicenstein, Jean François
France, Gif-sur-yvette
Cea Saclay
Glück, B.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Goret, Philippe
France, Gif-sur-yvette
Cea Saclay
Göhring, D.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Häuser, D.
Germany, Heidelberg
Universität Heidelberg
Hauser, Marcus
Germany, Heidelberg
Universität Heidelberg
Heinz, Sebastian
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Heinzelmann, Götz
Germany, Hamburg
Universität Hamburg
Henri, Gilles
France, Saint Martin D'heres
Université Grenoble Alpes
Hermann, German
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hinton, James A.J.A.
United Kingdom, Leeds
University of Leeds
Hoffmann, Agnes I.D.
Germany, Tubingen
Eberhard Karls Universität Tübingen
Hofmann, Werner
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Holleran, M.
South Africa, Potchefstroom
North-west University
Hoppe, S.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Horns, Dieter
Germany, Hamburg
Universität Hamburg
Jachołkowska, Agnieszka
France, Paris
Sorbonne Université
de Jager, Ocker C.
South Africa, Potchefstroom
North-west University
Jahn, C.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Jung-Richardt, Ira V.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Katarzyński, Krzysztof
Poland, Torun
Uniwersytet Mikołaja Kopernika w Toruniu
Katz, Ulrich F.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Kaufmann, Sarah
Germany, Heidelberg
Universität Heidelberg
Kendziorra, Eckehard
Germany, Tubingen
Eberhard Karls Universität Tübingen
Kerschhaggl, Matthias
Germany, Berlin
Humboldt-universität zu Berlin
Khangulyan, D.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Khélifi, Bruno
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Keogh, D.
United Kingdom, Durham
Durham University
Klužniak, Wlodzimierz
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Kneiske, Tanja M.
Germany, Hamburg
Universität Hamburg
Komin, Nukri
France, Gif-sur-yvette
Cea Saclay
Kosack, Karl
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Lamanna, Giovanni
France, Annecy
Laboratoire D'annecy-le-vieux de Physique Des Particules Lapp
Latham, Ian J.
United Kingdom, Durham
Durham University
Lenain, Jean Philippe
France, Paris
L'observatoire de Paris
Lohse, Thomas
Germany, Berlin
Humboldt-universität zu Berlin
Marandon, Vincent
France, Paris
Cnrs Centre National de la Recherche Scientifique
Martin, Jean Marc
France, Paris
L'observatoire de Paris
Martineau-Huynh, Olivier
France, Paris
Sorbonne Université
Marcowith, Alexandre
France, Montpellier
Université de Montpellier
Maurin, David
France, Paris
Sorbonne Université
McComb, T. J.Lowry
United Kingdom, Durham
Durham University
Medina, María Clementina
France, Paris
L'observatoire de Paris
Moderski, Rafaƚ
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Moulin, E.
France, Gif-sur-yvette
Cea Saclay
Naumann-Godó, Melitta
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
de Naurois, Mathieu
France, Paris
Sorbonne Université
Nedbal, Dalibor
Czech Republic, Prague
Charles University
Nekrassov, Daniil
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Niemiec, Jacek
Poland, Krakow
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
Nolan, Sam J.
United Kingdom, Durham
Durham University
Ohm, Stefan
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Olive, Jean François
France, Toulouse
Université Toulouse Iii - Paul Sabatier
de Õa Wilhelmi, E.
France, Paris
Cnrs Centre National de la Recherche Scientifique
Orford, K. J.
United Kingdom, Durham
Durham University
Ostrowski, Michałl
Poland, Krakow
Uniwersytet Jagielloński
Panter, M.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Pedaletti, Giovanna
Germany, Heidelberg
Universität Heidelberg
Pelletier, Guy
France, Saint Martin D'heres
Université Grenoble Alpes
Petrucci, Pierre Olivier
France, Saint Martin D'heres
Université Grenoble Alpes
Pita, Santiago
France, Paris
Cnrs Centre National de la Recherche Scientifique
Pûhlhofer, Gerd
Germany, Heidelberg
Universität Heidelberg
Punch, Michael
France, Paris
Cnrs Centre National de la Recherche Scientifique
Quirrenbach, Andreas
Germany, Heidelberg
Universität Heidelberg
Raubenheimer, B. Christo
South Africa, Potchefstroom
North-west University
Raue, Martin
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Rayner, S. M.
United Kingdom, Durham
Durham University
Renaud, Matthieu
Germany, Heidelberg
Max-planck-institut Für Kernphysik
France, Paris
Cnrs Centre National de la Recherche Scientifique
Rieger, Frank M.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Ripken, Joachim
Germany, Hamburg
Universität Hamburg
Rob, L.
Czech Republic, Prague
Charles University
Rosier-Lees, Sylvie
France, Annecy
Laboratoire D'annecy-le-vieux de Physique Des Particules Lapp
Rowell, Gavin P.
Australia, Adelaide
The University of Adelaide
Rudak, Bronisław
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Rulten, Cameron B.
United Kingdom, Durham
Durham University
Sahakian, Vardan H.
Armenia, Yerevan
Yerevan Physics Institute
Santangelo, Andrea E.
Germany, Tubingen
Eberhard Karls Universität Tübingen
Schlickeiser, Reinhard
Germany, Bochum
Ruhr-universitat Bochum
Schöck, Fabian M.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Schröder, R.
Germany, Bochum
Ruhr-universitat Bochum
Schwanke, Ullrich
Germany, Berlin
Humboldt-universität zu Berlin
Schwarzburg, S.
Germany, Tubingen
Eberhard Karls Universität Tübingen
Shalchi, Andreas
Germany, Bochum
Ruhr-universitat Bochum
Sikora, Marek
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Sol, Hélène
France, Paris
L'observatoire de Paris
Spangler, D.
United Kingdom, Durham
Durham University
Stawarz, Łukasz
Poland, Krakow
Uniwersytet Jagielloński
Steenkamp, R.
Namibia, Windhoek
University of Namibia
Stegmann, Christian
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Superina, Giulia
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Tavernet, Jean Paul
France, Paris
Sorbonne Université
Terrier, Régis
France, Paris
Cnrs Centre National de la Recherche Scientifique
Tibolla, Omar
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Germany, Heidelberg
Universität Heidelberg
Tluczykont, Martin
Germany, Hamburg
Universität Hamburg
Van Eldik, Christopher
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Vasileiadis, Georges
France, Montpellier
Université de Montpellier
Venter, C.
South Africa, Potchefstroom
North-west University
Venter, L. A.
France, Paris
L'observatoire de Paris
Vincent, Pierre
France, Paris
Sorbonne Université
Vink, Jacco S.
Netherlands, Utrecht
Universiteit Utrecht
Vivier, Matthieu
France, Gif-sur-yvette
Cea Saclay
Völk, Heinrich J.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Volpe, Francesca
Germany, Heidelberg
Max-planck-institut Für Kernphysik
France, Paris
In2p3 - Institut National de Physique Nucléaire et de Physique Des Particules
Wagner, Stefan J.
Germany, Heidelberg
Universität Heidelberg
Ward, Martin J.
United Kingdom, Durham
Durham University
Zdziarski, Andrzej A.
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Zech, Andreas
France, Paris
L'observatoire de Paris
Statistics
Citations: 193
Authors: 159
Affiliations: 31
Identifiers
Doi:
10.1088/0004-637X/695/1/L40
ISSN:
0004637X
Research Areas
Environmental
Study Approach
Quantitative
Study Locations
Namibia