A
Andrzej A. Zdziarski
Researcher at Polish Academy of Sciences
Publications - 135
Citations - 7039
Andrzej A. Zdziarski is an academic researcher from Polish Academy of Sciences. The author has contributed to research in topics: Luminosity & Compton scattering. The author has an hindex of 40, co-authored 135 publications receiving 6333 citations. Previous affiliations of Andrzej A. Zdziarski include Goddard Space Flight Center.
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Journal ArticleDOI
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
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
GX 339—4: the distance, state transitions, hysteresis and spectral correlations
Andrzej A. Zdziarski,Marek Gierlinski,Joanna Mikolajewska,Grzegorz Wardzinski,David M. Smith,B. Alan Harmon,Shunji Kitamoto +6 more
TL;DR: In this article, the authors derived the distance of GX 339-4 from the binary parameters of a blackhole binary and derived a distance of > 7 kpc, based on the determination of binary parameters.
Journal ArticleDOI
Simultaneous X-ray and 7-ray observations of Cyg X-1 in the hard state by Ginga and OSSE
Marek Gierlinski,Andrzej A. Zdziarski,Chris Done,W. Neil Johnson,Ken Ebisawa,Yoshihiro Ueda,F. Haardt,Bernard F. Phlips,Bernard F. Phlips +8 more
TL;DR: In this paper, the authors present four X-ray/gamma-ray spectra of Cyg X-1 observed in the hard ('low') state simultaneously by Ginga and GRO/OSSE on 1991 July 6.