Fast Variability of Tera–Electron Volt gamma Rays from the Radio Galaxy M87

Aharonian, Felix; Akhperjanian, A. G.; Bazer-Bachi, A. R.; Beilicke, M.; Benbow, Wystan; Berge, David; Bernlöhr, K.; Boisson, C.; Bolz, Oliver; Borrel, V.; Braun, Isabel; Brown, A. M.; Bühler, Rolf; Büsching, I.; Carrigan, Svenja; Chadwick, P. M.; Chounet, L.-M.; Cornils, R.; Costamante, L.; Degrange, B.; Djannati-Atai, A.; Drury, L.O'C.; Emmanoulopoulos, D.; Espigat, P.; Feinstein, F.; Ferrero, E.; Fontaine, G.; Funk, S.; Gallant, Y. A.; Giebels, B.; Glicenstein, J. F.; Goret, P.; Hadjichristidis, C.; Hauser, Dominik; Hauser, M.; Heinzelmann, G.; Henri, G.; Hermann, G.; Hinton, J. A.; Hofmann, W.; Holleran, M.; Horns, D.; de Jager, O. C.; Khélifi, B.; Komin, N.; Konopelko, A.; Latham, I. J.; Le Gallou, R.; Lemière, A.; Lemoine-Goumard, M.; Lohse, T.; Martineau-Huynh, O.; Marcowith, A.; Masterson, C.; McComb, T. J. L.; de Naurois, M.; Nedbal, Dalibor; Nolan, S. J.; Noutsos, A.; Orford, K. J.; Osborne, J. L.; Ouchrif, M.; Panter, Michael; Pelletier, G.; Pita, S.; Pühlhofer, G.; Punch, M.; Raubenheimer, B. C.; Raue, M.; Rayner, S. M.; Reimer, A.; Rosier-Lees, S.; Ripken, J.; Rob, L.; Rolland, L.; Rowell, Gavin; Sahakian, V.; Saugé, L.; Schlenker, S.; Schlickeiser, R.; Schröder, R.; Schwanke, U.; Sol, H.; Spangler, D.; Steenkamp, R.; Stegmann, C.; Tavernet, J.-P-; Terrier, R.; Tluczykont, M.; Vasileiadis, G.; Venter, C.; Vincent, P.; Völk, H. J.; Wagner, S. J.; Ward, M.; Bolz, O.; Dickinson, H. J.; Dubus, G.; Egberts, Kathrin; Fiasson, A.; Funk, S.; Jacholkowska, A.; Kosack, K.; Martin, J. M.; Spanier, F.; Superina, G.; Tam, P. H.; van Eldik, C.; Hoffmann, A.; Coignet, G.; Funk, Seb.; Füßling, M.; Kendziorra, E.; Kerschhaggl, M.; Lamanna, G.; Lenain, J.-P.; Moulin, E.; Ranchon, S.; Schwarzburg, S.; Schwemmer, S.; Vialle, J. P.; F. Aharonian et al. for the H.E.S.S. Collaboration

doi:10.1126/science.1134408

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Fast Variability of Tera–Electron Volt gamma Rays from the Radio Galaxy M87

Aharonian, F., Akhperjanian, A. G., Bazer-Bachi, A. R., Beilicke, M., Benbow, W., Berge, D., et al. (2006). Fast Variability of Tera–Electron Volt gamma Rays from the Radio Galaxy M87. Science, 314(5804), 1424-1427. doi:10.1126/science.1134408.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-7EE6-5 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-7EE7-3

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Aharonian, Felix¹, Author
Akhperjanian, A. G.¹, Author
Bazer-Bachi, A. R.², Author
Beilicke, M.¹, Author
Benbow, Wystan¹, Author
Berge, David¹, Author
Bernlöhr, K.¹, Author
Boisson, C.², Author
Bolz, Oliver¹, Author
Borrel, V.², Author
Braun, Isabel¹, Author
Brown, A. M.², Author
Bühler, Rolf¹, Author
Büsching, I.², Author
Carrigan, Svenja¹, Author
Chadwick, P. M.², Author
Chounet, L.-M.², Author
Cornils, R.¹, Author
Costamante, L.¹, Author
Degrange, B.², Author
Djannati-Atai, A.¹, Author         Drury, L.O'C.², AuthorEmmanoulopoulos, D.², AuthorEspigat, P.², AuthorFeinstein, F.¹, Author         Ferrero, E.², AuthorFontaine, G.², AuthorFunk, S.¹, Author         Gallant, Y. A.¹, Author         Giebels, B.², AuthorGlicenstein, J. F.², AuthorGoret, P.², AuthorHadjichristidis, C.², AuthorHauser, Dominik¹, Author         Hauser, M.², AuthorHeinzelmann, G.², AuthorHenri, G.², AuthorHermann, G.¹, Author         Hinton, J. A.¹, Author         Hofmann, W.¹, Author         Holleran, M.², AuthorHorns, D.¹, Author         de Jager, O. C.², AuthorKhélifi, B.¹, Author         Komin, N.², AuthorKonopelko, A.³, Author         Latham, I. J.², AuthorLe Gallou, R.², AuthorLemière, A.², AuthorLemoine-Goumard, M.², AuthorLohse, T.², AuthorMartineau-Huynh, O.², AuthorMarcowith, A.², AuthorMasterson, C.¹, Author         McComb, T. J. L.², Authorde Naurois, M.¹, Author         Nedbal, Dalibor¹, Author         Nolan, S. J.², AuthorNoutsos, A.², AuthorOrford, K. J.¹, Author         Osborne, J. L.¹, Author         Ouchrif, M.², AuthorPanter, Michael¹, Author         Pelletier, G.², AuthorPita, S.², AuthorPühlhofer, G.¹, Author         Punch, M.², AuthorRaubenheimer, B. C.², AuthorRaue, M.¹, Author         Rayner, S. M.², AuthorReimer, A.², AuthorRosier-Lees, S.², AuthorRipken, J.², AuthorRob, L.², AuthorRolland, L.², AuthorRowell, Gavin¹, Author         Sahakian, V.², AuthorSaugé, L.¹, Author         Schlenker, S.², AuthorSchlickeiser, R.², AuthorSchröder, R.², AuthorSchwanke, U.², AuthorSol, H.², AuthorSpangler, D.², AuthorSteenkamp, R.², AuthorStegmann, C.², AuthorTavernet, J.-P-², AuthorTerrier, R.², AuthorTluczykont, M.², AuthorVasileiadis, G.¹, Author         Venter, C.², AuthorVincent, P.², AuthorVölk, H. J.³, Author         Wagner, S. J.², AuthorWard, M.², AuthorBolz, O.¹, Author         Dickinson, H. J.², AuthorDubus, G.¹, Author         Egberts, Kathrin¹, Author         Fiasson, A.², AuthorFunk, S.¹, Author         Jacholkowska, A.², AuthorKosack, K.¹, Author         Martin, J. M.², AuthorSpanier, F.², AuthorSuperina, G.², AuthorTam, P. H.², Authorvan Eldik, C.¹, Author         Hoffmann, A.², AuthorCoignet, G.², AuthorFunk, Seb.², AuthorFüßling, M.², AuthorKendziorra, E.², AuthorKerschhaggl, M.², AuthorLamanna, G.², AuthorLenain, J.-P.², AuthorMoulin, E.², AuthorRanchon, S.², AuthorSchwarzburg, S.², AuthorSchwemmer, S.², AuthorVialle, J. P.², AuthorF. Aharonian et al. for the H.E.S.S. Collaboration, Editor more..

Affiliations:
1Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550
2Yerevan Physics Institute, 2 Alikhanian Brothers St., 375036 Yerevan, Armenia Centre d'Étude Spatiale des Rayonnements, CNRS/UPS, 9 Av. du Colonel Roche, BP 4346, 31029 Toulouse Cedex 4, France Universität Hamburg, Institut für Experimentalphysik, Luruper Chaussee 149, 22761 Hamburg, Germany Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489 Berlin, Germany LUTH, UMR 8102 du CNRS, Observatoire de Paris, Section de Meudon, 92195 Meudon Cedex, France University of Durham, Department of Physics, South Road, Durham DH1 3LE, UK Unit for Space Physics, North-West University, Potchefstroom 2520, South Africa Laboratoire Leprince-Ringuet, IN2P3/CNRS, École Polytechnique, 91128 Palaiseau, France European Associated Laboratory for Gamma-Ray Astronomy, jointly supported by CNRS and MPG APC, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France Dublin Institute for Advanced Studies, 5 Merrion Square, Dublin 2, Ireland Landessternwarte, Universität Heidelberg, Königstuhl, 69117 Heidelberg, Germany Laboratoire de Physique Théorique et Astroparticules, IN2P3/CNRS, Université Montpellier II, CC 70, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France DAPNIA/DSM/CEA, CE Saclay, 91191 Gif-sur-Yvette, Cedex, France Laboratoire d'Astrophysique de Grenoble, INSU/CNRS, Université Joseph Fourier, BP 53, 38041 Grenoble Cedex 9, France Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, 72076 Tübingen, Germany Laboratoire de Physique Nucléaire et de Hautes Énergies, IN2P3/CNRS, Universités Paris VI & VII, 4 place Jussieu, 75252 Paris Cedex 5, France Institute of Particle and Nuclear Physics, Charles University, V Holesovickach 2, 180 00 Prague 8, Czech Republic Institut für Theoretische Physik, Lehrstuhl IV: Weltraum und Astrophysik, Ruhr-Universität Bochum, 44780 Bochum, Germany University of Namibia, Private Bag 13301, Windhoek, Namibia, ou_persistent22
3Prof. Heinrich J. Völk, Emeriti, MPI for Nuclear Physics, Max Planck Society, ou_907548

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Abstract: The detection of fast variations of the tera–electron volt (TeV) (10¹² eV) gamma-ray flux, on time scales of days, from the nearby radio galaxy M87 is reported. These variations are about 10 times as fast as those observed in any other wave band and imply a very compact emission region with a dimension similar to the Schwarzschild radius of the central black hole. We thus can exclude several other sites and processes of the g-ray production. The observations confirm that TeV gamma rays are emitted by extragalactic sources other than blazars, where jets are not relativistically beamed toward the observer.

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Language(s): eng - English

Dates: Date issued: 2006-12-01

Publication Status: Issued

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Identifiers: eDoc: 292011
URI: http://www.sciencemag.org/cgi/rapidpdf/314/5804/1424.pdf?ijkey=7Wh/IeatxsKeQ&keytype=ref&siteid=sci
DOI: 10.1126/science.1134408

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Title: Science

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Pages: - Volume / Issue: 314 (5804) Sequence Number: - Start / End Page: 1424 - 1427 Identifier: -