Michał Ostrowski
Jagiellonian University
235 Papers
1.2K Citations
Michał Ostrowski is an academic researcher from Jagiellonian University. The author has contributed to research in topics: Blazar & BL Lac object. The author has an hindex of 58, co-authored 191 publications. Previous affiliations of Michał Ostrowski include Ruhr University Bochum.
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Papers
Energy Spectrum of Cosmic-Ray Electrons at TeV Energies
Felix Aharonian,A. G. Akhperjanian,U. Barres de Almeida,A. R. Bazer-Bachi,Yvonne Becherini,B. Behera,Wystan Benbow,Konrad Bernlöhr,Catherine Boisson,A. Bochow,V. Borrel,Ilana M. Braun,E. Brion,J. Brucker,Pierre Brun,Rolf Bühler,Tomasz Bulik,I. Büsching,Timothé Boutelier,Svenja Carrigan,P. M. Chadwick,A. Charbonnier,R. C. G. Chaves,A. Cheesebrough,L.-M. Chounet,A. C. Clapson,G. Coignet,Luigi Costamante,M. Dalton,B. Degrange,Christoph Deil,Hugh Dickinson,A. Djannati-Ataï,W. Domainko,Luke O'c. Drury,Franky Dubois,Guillaume Dubus,J. Dyks,M. Dyrda,Kathrin Egberts,Dimitrios Emmanoulopoulos,P. Espigat,C. Farnier,F. Feinstein,A. Fiasson,A. Förster,G. Fontaine,M. Fussling,Stefano Gabici,Y. A. Gallant,L. Gérard,B. Giebels,J.F. Glicenstein,B. Glück,P. Goret,C. Hadjichristidis,D. Hauser,M. Hauser,S. Heinz,G. Heinzelmann,Gilles Henri,German Hermann,Jim Hinton,A. Hoffmann,Werner Hofmann,M. Holleran,S. Hoppe,Dieter Horns,A. Jacholkowska,O. C. de Jager,I. Jung,K. Katarzyński,Sarah Kaufmann,Eckhard Kendziorra,M. Kerschhaggl,Dmitry Khangulyan,B. Khélifi,D. Keogh,Nu. Komin,K. Kosack,G. Lamanna,J.-P. Lenain,Thomas Lohse,V. Marandon,Jean Michel Martin,Olivier Martineau-Huynh,A. Marcowith,David Maurin,T. J. L. McComb,C. Medina,Rafał Moderski,Emmanuel Moulin,M. Naumann-Godo,M. de Naurois,D. Nedbal,D. Nekrassov,Jacek Niemiec,S. J. Nolan,Stefan Ohm,J-F. Olive,E. D. Wilhelmi,K. J. Orford,J. L. Osborne,Michał Ostrowski,M. Panter,G. Pedaletti,G. Pelletier,P.-O. Petrucci,S. Pita,G. Pühlhofer,Michael Punch,Andreas Quirrenbach,B. C. Raubenheimer,M. Raue,S. M. Rayner,Matthieu Renaud,Frank M. Rieger,J. Ripken,L. Rob,S. Rosier-Lees,Gavin Rowell,B. Rudak,Cameron B Rulten,J. Ruppel,V. Sahakian,Andrea Santangelo,Reinhard Schlickeiser,F. M. Schöck,R. Schröder,U. Schwanke,S. Schwarzburg,S. Schwemmer,A. Shalchi,J. L. Skilton,Helene Sol,D. Spangler,L. Stawarz,R. Steenkamp,C. Stegmann,G. Superina,P. H. Tam,J. P. Tavernet,Regis Terrier,O. Tibolla,C. van Eldik,G. Vasileiadis,Christo Venter,J. P. Vialle,P. Vincent,M. Vivier,Heinrich J. Völk,Francesca Volpe,Stefan Wagner,Martin Ward,Andrzej A. Zdziarski,A. Zech +155 more
- 31 Dec 2008
TL;DR: In this measurement, the first of this type, the High Energy Stereoscopic System is able to extend the measurement of the electron spectrum beyond the range accessible to direct measurements, finding evidence for a substantial steepening in the energy spectrum above 600 GeV compared to lower energies.
Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.
Felix Aharonian,A. G. Akhperjanian,Gisela Anton,U. Barres de Almeida,A. R. Bazer-Bachi,Yvonne Becherini,B. Behera,Konrad Bernlöhr,A. Bochow,C. Boisson,J. Bolmont,V. Borrel,J. Brucker,Francois Brun,Pierre Brun,Rolf Bühler,T. Bulik,I. Büsching,Timothé Boutelier,P. M. Chadwick,A. Charbonnier,R. C. G. Chaves,A. Cheesebrough,L.-M. Chounet,G. Coignet,M. Dalton,M. K. Daniel,I. D. Davids,I. D. Davids,B. Degrange,Christoph Deil,Hugh Dickinson,A. Djannati-Ataï,W. Domainko,L. O'c. Drury,Franky Dubois,Guillaume Dubus,J. Dyks,M. Dyrda,Kathrin Egberts,Dimitrios Emmanoulopoulos,P. Espigat,Christian Farnier,F. Feinstein,A. Fiasson,A. Förster,Gerard Fontaine,M. Füßling,Stefano Gabici,Y. A. Gallant,L. Gérard,D. Gerbig,B. Giebels,J. F. Glicenstein,B. Glück,P. Goret,D. Göring,D. Hauser,M. Hauser,S. Heinz,G. Heinzelmann,Gilles Henri,G. Hermann,Jim Hinton,A. Hoffmann,Werner Hofmann,M. Holleran,S. Hoppe,Dieter Horns,A. Jacholkowska,O. C. de Jager,C. Jahn,I. Jung,K. Katarzyński,Uli Katz,Sarah Kaufmann,Eckhard Kendziorra,M. Kerschhaggl,D. Khangulyan,B. Khélifi,D. Keogh,W. Klu'Zniak,T. Kneiske,Nu. Komin,Karl Kosack,R. Kossakowski,G. Lamanna,J.-P. Lenain,Thomas Lohse,V. Marandon,J. M. Martin,Olivier Martineau-Huynh,Alexandre Marcowith,Julien Masbou,David Maurin,T. J. L. McComb,M. C. Medina,R. Moderski,Emmanuel Moulin,M. Naumann-Godo,M. de Naurois,D. Nedbal,D. Nekrassov,B. Nicholas,Jacek Niemiec,S. J. Nolan,Stefan Ohm,J-F. Olive,E. de O˜na,K. J. Orford,Michał Ostrowski,M. Panter,M. Paz Arribas,G. Pedaletti,G. Pelletier,P.-O. Petrucci,S. Pita,Gerd Pühlhofer,Michael Punch,Andreas Quirrenbach,B. C. Raubenheimer,Martin Raue,S. M. Rayner,Olaf Reimer,Matthieu Renaud,Frank M. Rieger,J. Ripken,L. Rob,S. Rosier-Lees,Gavin Rowell,B. Rudak,Cameron B Rulten,J. Ruppel,V. Sahakian,Andrea Santangelo,Reinhard Schlickeiser,F.M. Sch¨ock,R. Schröder,Ullrich Schwanke,S. Schwarzburg,S. Schwemmer,A. Shalchi,J. L. Skilton,Helene Sol,D. Spangler,L. Stawarz,R. Steenkamp,C. Stegmann,F. Stinzing,G. Superina,Anna Szostek,P. H. Tam,J.-P. Tavernet,Regis Terrier,O. Tibolla,M. Tluczykont,C. van Eldik,G. Vasileiadis,Christo Venter,L. Venter,J. P. Vialle,Pascal Vincent,M. Vivier,Heinrich J. Völk,Francesca Volpe,Stefan Wagner,Martin Ward,A. A. Zdziarski,A. Zech +168 more
TL;DR: In this article, the authors present a measurement of the cosmic-ray electron spectrum with H.E.S. starting at 340 GeV and show no indication of a structure in the electron spectrum, but rather a power-law spectrum with spectral index of 3.0 +- 0.1 (stat.) + − 0.3 (syst.) which steepens at about 1 TeV.
Acceleration of petaelectronvolt protons in the Galactic Centre
A. Abramowski,Felix Aharonian,Faical Ait Benkhali,A. G. Akhperjanian,E. O. Anguener,Michael Backes,A. Balzer,Yvonne Becherini,J. Becker Tjus,David Berge,S. Bernhard,K. Bernloehr,E. Birsin,R. Blackwell,Markus Boettcher,Catherine Boisson,J. Bolmont,Pol Bordas Coma,Johan Bregeon,Francois Brun,Pierre Brun,M. Bryan,Tomasz Bulik,J. Carr,Sabrina Casanova,Nachiketa Chakraborty,R. Chalme-Calvet,R. C. G. Chaves,A. W. Chen,M. Chrétien,S. Colafrancesco,G. Cologna,Jan Conrad,C. Couturier,Y. Cui,I. D. Davids,B. Degrange,Christoph Deil,P. deWilt,A. Djannati-Ata,W. Domainko,Axel Donath,L. O'c. Drury,Guillaume Dubus,K. Dutson,J. Dyks,M. Dyrda,Tanya Edwards,K. Egberts,Peter Eger,J.-P. Ernenwein,P. Espigat,C. Farnier,S. J. Fegan,F. Feinstein,M. V. Fernandes,D. Fernandez,A. Fiasson,G. Fontaine,A. Förster,M. Fuessling,Stefano Gabici,M. Gajdus,Y. A. Gallant,T. Garrigoux,Gianluca Giavitto,B. Giebels,J. F. Glicenstein,D. Gottschall,Arti Goyal,M. H. Grondin,M. Grudzińska,D. Hadasch,S. Haeffner,Joachim Hahn,J. Hawkes,G. Heinzelmann,Gilles Henri,G. Hermann,O. Hervet,Andreas Hillert,Jim Hinton,Werner Hofmann,Petter Hofverberg,Clemens Hoischen,M. Holler,Dieter Horns,A. Ivascenko,A. Jacholkowska,Marek Jamrozy,M. Janiak,Felix Jankowsky,I. Jung-Richardt,M. A. Kastendieck,K. Katarzyński,Uli Katz,D. Kerszberg,Bruno Khelifi,M. Kieffer,S. Klepser,D. Klochkov,W. Kluzniak,D. Kolitzus,Nu. Komin,K. Kosack,S. Krakau,F. Krayzel,P. P. Krueger,H. Laffon,G. Lamanna,J. Lau,J. Lefaucheur,V. Lefranc,A. Lemiere,M. Lemoine-Goumard,J-P. Lenain,Thomas Lohse,A. Lopatin,C-C Lu,R. Lui,Vincent Marandon,Alexandre Marcowith,C. Mariaud,Ramin Marx,Gilles Maurin,N. Maxted,M. Mayer,P. J. Meintjes,U. Menzler,Manuel Meyer,Alison Mitchell,Rafał Moderski,M. Mohamed,K. Morå,Emmanuel Moulin,Thomas Murach,M. de Naurois,Jacek Niemiec,L. Oakes,H. Odaka,S. Oettl,Stefan Ohm,B. Opitz,Michał Ostrowski,Igor Oya,M. Panter,R. D. Parsons,M. Paz Arribas,N. W. Pekeur,Guy Pelletier,P-O. Petrucci,B. Peyaud,Santiago Pita,Helen Poon,Heike Prokoph,G. Puehlhofer,Michael Punch,Andreas Quirrenbach,S. Raab,I. Reichardt,A. Reimer,Olaf Reimer,M. Renaud,Raquel de los Reyes,Frank M. Rieger,C. Romoli,S. Rosier-Lees,Gavin Rowell,B. Rudak,C. B. Rulten,V. Sahakian,David Salek,David Sánchez,Andrea Santangelo,Manami Sasaki,Reinhard Schlickeiser,F. Schuessler,André Schulz,Ullrich Schwanke,S. Schwemmer,A. S. Seyffert,Rachel Simoni,Helene Sol,Felix Spanier,G. Spengler,F. Spies,Lukasz Stawarz,R. Steenkamp,Christian Stegmann,F. Stinzing,K. Stycz,I. Sushch,J.-P. Tavernet,T. Tavernier,Andrew M. Taylor,Regis Terrier,M. Tluczykont,C. Trichard,Richard J. Tuffs,K. Valerius,J.L. Van der Walt,C. van Eldik,B. van Soelen,G. Vasileiadis,J. Veh,Christo Venter,Aion Viana,P. Vincent,Jacco Vink,F. Voisin,H. J. Voelk,Thomas Vuillaume,Stefan Wagner,P. Wagner,Robert Wagner,Matthias Weidinger,Quirin Weitzel,R. White,Alicja Wierzcholska,P. Willmann,A. Woernlein,Denis Wouters,Ruizhi Yang,Victor Zabalza,D. Zaborov,Michael Zacharias,Andrzej A. Zdziarski,A. Zech,F. Zefi,N. Zywucka +229 more
TL;DR: Deep γ-ray observations with arcminute angular resolution of the region surrounding the Galactic Centre are reported, which show the expected tracer of the presence of petaelectronvolt protons within the central 10 parsecs of the Galaxy, and it is proposed that the supermassive black hole Sagittarius A* is linked to this PeVatron.
Search for TeV Gamma-ray Emission from GRB 100621A, an extremely bright GRB in X-rays, with H.E.S.S
A. Abramowski,Felix Aharonian,Faical Ait Benkhali,A. G. Akhperjanian,A. G. Akhperjanian,E. O. Angüner,Gisela Anton,S. Balenderan,A. Balzer,Anna Barnacka,Yvonne Becherini,J. Becker Tjus,Konrad Bernlöhr,E. Birsin,Elisabetta Bissaldi,J. Biteau,Markus Böttcher,Catherine Boisson,J. Bolmont,Pol Bordas,J. Brucker,Francois Brun,Pierre Brun,Tomasz Bulik,Svenja Carrigan,Sabrina Casanova,Matteo Cerruti,Matteo Cerruti,P. M. Chadwick,R. Chalme-Calvet,R. C. G. Chaves,A. Cheesebrough,M. Chrétien,S. Colafrancesco,G. Cologna,Jan Conrad,C. Couturier,M. Dalton,M. K. Daniel,I. D. Davids,B. Degrange,Christoph Deil,P. deWilt,Hugh Dickinson,A. Djannati-Ataï,W. Domainko,L. O'c. Drury,Guillaume Dubus,K. Dutson,J. Dyks,Michal Dyrda,Tanya Edwards,Kathrin Egberts,Peter Eger,P. Espigat,C. Farnier,S. J. Fegan,F. Feinstein,M. V. Fernandes,D. Fernandez,A. Fiasson,G. Fontaine,A. Förster,M. Füßling,M. Gajdus,Y. A. Gallant,T. Garrigoux,B. Giebels,J. F. Glicenstein,Marie-Hélène Grondin,M. Grudzińska,S. Häffner,Joachim Hahn,J. Harris,G. Heinzelmann,Gilles Henri,German Hermann,O. Hervet,Andreas Hillert,Jim Hinton,Werner Hofmann,Petter Hofverberg,M. Holler,Dieter Horns,A. Jacholkowska,C. Jahn,Marek Jamrozy,M. Janiak,Felix Jankowsky,I. Jung,M. A. Kastendieck,K. Katarzyński,U. F. Katz,S. Kaufmann,B. Khélifi,M. Kieffer,S. Klepser,D. Klochkov,W. Kluźniak,T. Kneiske,D. Kolitzus,Nu. Komin,Karl Kosack,S. Krakau,F. Krayzel,P.P. Krüger,P.P. Krüger,H. Laffon,G. Lamanna,J. Lefaucheur,A. Lemiere,Marianne Lemoine-Goumard,J.-P. Lenain,Dirk Lennarz,Thomas Lohse,A. Lopatin,Chia-Chun Lu,Vincent Marandon,Alexandre Marcowith,Ramin Marx,G. Maurin,N. Maxted,M. Mayer,T. J. L. McComb,J. Méhault,U. Menzler,Manuel Meyer,Rafał Moderski,M. Mohamed,Emmanuel Moulin,Thomas Murach,C. L. Naumann,M. de Naurois,Jacek Niemiec,S. J. Nolan,L. Oakes,P. T. O'Brien,Stefan Ohm,Stefan Ohm,Emma de Ona Wilhelmi,B. Opitz,Michał Ostrowski,I. Oya,M. Panter,D. Parsons,M. Paz Arribas,N. W. Pekeur,Guy Pelletier,J. Perez,Pierre-Olivier Petrucci,B. Peyaud,S. Pita,Helen Poon,G. Pühlhofer,Michael Punch,Andreas Quirrenbach,S. Raab,Martin Raue,A. Reimer,Olaf Reimer,M. Renaud,R. de los Reyes,Frank M. Rieger,L. Rob,C. Romoli,S. Rosier-Lees,Gavin Rowell,B. Rudak,C. B. Rulten,V. Sahakian,V. Sahakian,David Sanchez,Andrea Santangelo,Reinhard Schlickeiser,F. Schüssler,André Schulz,Ullrich Schwanke,S. Schwarzburg,S. Schwemmer,Helene Sol,G. Spengler,F. Spies,Łukasz Stawarz,R. Steenkamp,C. Stegmann,F. Stinzing,K. Stycz,Iurii Sushch,Iurii Sushch,Anna Szostek,Pak-Hin Thomas Tam,J.-P. Tavernet,T. Tavernier,Andrew M. Taylor,Regis Terrier,M. Tluczykont,C. Trichard,K. Valerius,C. van Eldik,G. Vasileiadis,Christo Venter,Aion Viana,P. Vincent,Heinrich J. Völk,Francesca Volpe,M. J. Vorster,Stefan Wagner,P. Wagner,Martin Ward,Matthias Weidinger,Quirin Weitzel,R. White,Alicja Wierzcholska,P. Willmann,A. Wörnlein,Denis Wouters,Michael Zacharias,Anna Zajczyk,Andrzej A. Zdziarski,A. Zech,H.-S. Zechlin +220 more
TL;DR: In this article, the authors show that the long gamma-ray burst (GRB) 100621A, at the time the brightest X-ray transient ever detected by Swift-XRT in the 0.3-10 keV range, has been observed with the HESS.
Radio Imaging of the Very-High-Energy gamma-Ray Emission Region in the Central Engine of a Radio Galaxy
V. A. Acciari,E. Aliu,T. C. Arlen,Manuel A. Bautista,M. Beilicke,Wystan Benbow,S. M. Bradbury,J. H. Buckley,V. Bugaev,Yousaf M. Butt,Karen Byrum,A. Cannon,O. Celik,A. Cesarini,Y. C. Chow,L. Ciupik,P. Cogan,Wei Cui,R. Dickherber,S. J. Fegan,J. P. Finley,P. Fortin,Lucy Fortson,Amy Furniss,Daniel Gall,G. H. Gillanders,J. Grube,R. Guenette,Geza Gyuk,D. S. Hanna,Jamie Holder,D. Horan,C. M. Hui,Thomas Brian Humensky,A. Imran,P. Kaaret,N. Karlsson,David Kieda,John Kildea,A. Konopelko,Henric Krawczynski,Frank Krennrich,M. J. Lang,S. LeBohec,Gernot Maier,A. McCann,M. McCutcheon,J. Millis,P. Moriarty,R. A. Ong,A. N. Otte,D. Pandel,J. S. Perkins,D. Petry,Martin Pohl,John L. Quinn,K. Ragan,Luis C. Reyes,P. T. Reynolds,E. Roache,H. J. Rose,M. Schroedter,G. H. Sembroski,A. W. Smith,S. P. Swordy,M. Theiling,John Toner,A. Varlotta,S. Vincent,S. P. Wakely,J. E. Ward,T. C. Weekes,Amanda Weinstein,D. A. Williams,Stephanie Wissel,Matthew Wood,R. C. Walker,F. Davies,P. E. Hardee,W. Junor,C. Ly,Felix Aharonian,A. G. Akhperjanian,Gisela Anton,Almeida U. Barres De,A. R. Bazer-Bachi,Yvonne Becherini,B. Behera,K. Bernloehr,A. Bochow,C. Boisson,J. Bolmont,V. Borrel,J. Brucker,F. Brun,Pierre Brun,R. Buehler,T. Bulik,I. Buesching,Timothé Boutelier,P. M. Chadwick,A. Charbonnier,R. C. G. Chaves,A. Cheesebrough,L.-M. Chounet,A. C. Clapson,G. Coignet,M. Dalton,M. K. Daniel,I.D. Davids,B. Degrange,Christoph Deil,Hugh Dickinson,A. Djannati-Ataï,W. Domainko,L. O'c. Drury,Franky Dubois,Guillaume Dubus,J. Dyks,Michal Dyrda,K. Egberts,Dimitrios Emmanoulopoulos,P. Espigat,Christian Farnier,F. Feinstein,A. Fiasson,A. Foerster,G. Fontaine,M. Fuessling,Stefano Gabici,Y. A. Gallant,L. Gérard,D. Gerbig,B. Giebels,J. F. Glicenstein,B. Glueck,P. Goret,D. Goehring,D. Hauser,M. Hauser,S. Heinz,G. Heinzelmann,Gilles Henri,G. Hermann,Jim Hinton,A. Hoffmann,Werner Hofmann,M. Holleran,S. Hoppe,Dieter Horns,A. Jacholkowska,Jager O. C. de,C. Jahn,I. Jung,K. Katarzyński,U. F. Katz,Sarah Kaufmann,Eckhard Kendziorra,M. Kerschhaggl,D. Khangulyan,B. Khélifi,D. Keogh,W. Kluzniak,T. Kneiske,Nu. Komin,K. Kosack,G. Lamanna,J.-P. Lenain,Thomas Lohse,V. Marandon,J. M. Martin,Olivier Martineau-Huynh,Alexandre Marcowith,David Maurin,T. J. L. McComb,M. C. Medina,Rafał Moderski,Emmanuel Moulin,M. Naumann-Godo,Naurois M. De,D. Nedbal,D. Nekrassov,B. Nicholas,Jacek Niemiec,S. J. Nolan,Stefan Ohm,J-F. Olive,E. de Oña Wilhelmi,K. J. Orford,Michał Ostrowski,M. Panter,M. Paz Arribas,G. Pedaletti,G. Pelletier,P.-O. Petrucci,S. Pita,Michael Punch,M. Raue,S. M. Rayner,M. Renaud,Frank M. Rieger,J. Ripken,L. Rob,S. Rosier-Lees,Gavin Rowell,B. Rudak,Cameron B Rulten,J. Ruppel,V. Sahakian,Andrea Santangelo,Reinhard Schlickeiser,F. M. Schoeck,R. Schroeder,Ullrich Schwanke,S. Schwarzburg,S. Schwemmer,A. Shalchi,M. Sikora,J. L. Skilton,Helene Sol,D. Spangler,Lukasz Stawarz,R. Steenkamp,C. Stegmann,F. Stinzing,G. Superina,Anna Szostek,P. H. Tam,J.-P. Tavernet,Regis Terrier,O. Tibolla,O. Tibolla,M. Tluczykont,Eldik C. Van,G. Vasileiadis,Christo Venter,L. Venter,J. P. Vialle,Pascal Vincent,M. Vivier,H. J. Voelk,F. Volpe,Stefan Wagner,Martin Ward,Andrzej A. Zdziarski,A. Zech,H. Anderhub,L. A. Antonelli,P. Antoranz,Michael Backes,C. Baixeras,S. Balestra,Juan Abel Barrio,Denis Bastieri,J. Becerra Gonzlez,J. K. Becker,W. Bednarek,K. Berger,Elisa Bernardini,Adrian Biland,Ralph Bock,Giacomo Bonnoli,Pol Bordas,D. Borla Tridon,Valentí Bosch-Ramon,D. Bose,Ilana M. Braun,Thomas Bretz,I. Britvitch,M. Camara,E. Carmona,S. Commichau,Jose Luis Contreras,Juan Cortina,M. T. Costado,Stefano Covino,V. Curtef,Francesco Dazzi,Angelis A. De,Pozo E. de Cea Del,C. Delgado Mendez,Los Reyes R. De,Lotto B. De,Maria M. De,Sabata F. De,Aaron Dominguez,Daniela Dorner,Michele Doro,D. Elsaesser,Manel Errando,Daniel Ferenc,E. Fernndez,R. Firpo,M. V. Fonseca,Ll. Font,Nicola Galante,R. J. García López,M. Garczarczyk,M. Gaug,Florian Goebel,D. Hadasch,Masaaki Hayashida,A. Herrero,Dorothee Hildebrand,D. Hoehne-Moench,J. Hose,Chieh Hsu,T. Jogler,Daniel Kranich,Barbera A. La,A. Laille,E. Leonardo,Elina Lindfors,Saverio Lombardi,Francesco Longo,Morgan Lopez,E. Lorenz,Pratik Majumdar,G. Maneva,Nijil Mankuzhiyil,Karl Mannheim,L. Maraschi,Mosè Mariotti,M. I. Martínez,Daniel Mazin,Mario Meucci,Jose Miguel Miranda,R. Mirzoyan,H. Miyamoto,Javier Moldon,Mariano Moles,Abelardo Moralejo,Daniel Nieto,Kari Nilsson,Jelena Ninkovic,Igor Oya,Riccardo Paoletti,J. M. Paredes,M. Pasanen,D. Pascoli,Felicitas Pauss,R. G. Pegna,Miguel A. Pérez-Torres,Massimo Persic,L. Peruzzo,Francisco Prada,E. Prandini,N. Puchades,Ignasi Reichardt,Wolfgang Rhode,Marc Ribó,J. Rico,M. Rissi,A. Robert,S. Ruegamer,A. Saggion,T. Y. Saito,M. Salvati,Miguel A. Sánchez-Conde,Konstancja Satalecka,V. Scalzotto,V. Scapin,T. Schweizer,M. Shayduk,S. N. Shore,N. Sidro,Diego F. Torres,A. Sierpowska-Bartosik,A. Sillanpää,Julian Sitarek,Dorota Sobczyńska,Felix Spanier,Antonio Stamerra,L. S. Stark,L. O. Takalo,Fabrizio Tavecchio,Petar Temnikov,D. Tescaro,Masahiro Teshima,Nicola Turini,H. Vankov,Robert Wagner,Victor Zabalza,Fabio Zandanel,Roberta Zanin,J. Zapatero +385 more
TL;DR: Radio and VHE observations of the radio galaxy Messier 87 are revealed, revealing a period of extremely strong VHE gamma-ray flares accompanied by a strong increase of theRadio flux from its nucleus, implying that charged particles are accelerated to very high energies in the immediate vicinity of the black hole.