R
Roberta Zanin
Researcher at Max Planck Society
Publications - 94
Citations - 5404
Roberta Zanin is an academic researcher from Max Planck Society. The author has contributed to research in topics: MAGIC (telescope) & Crab Nebula. The author has an hindex of 37, co-authored 91 publications receiving 5090 citations. Previous affiliations of Roberta Zanin include IFAE.
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Journal ArticleDOI
Variable very high energy γ-ray emission from markarian 501
Justin Albert,E. Aliu,H. Anderhub,P. Antoranz,A. Armada,C. Baixeras,Juan Abel Barrio,H. Bartko,Denis Bastieri,Julia Becker,W. Bednarek,K. Berger,Ciro Bigongiari,Adrian Biland,R. K. Bock,R. K. Bock,Pol Bordas,Valentí Bosch-Ramon,Thomas Bretz,I. Britvitch,M. Camara,E. Carmona,Ashot Chilingarian,J. A. Coarasa,S. Commichau,Jose Luis Contreras,Juan Cortina,M. T. Costado,V. Curtef,V. Danielyan,Francesco Dazzi,A. De Angelis,C. Delgado,R. de los Reyes,B. De Lotto,E. Domingo-Santamaría,Daniela Dorner,Michele Doro,Manel Errando,Michela Fagiolini,Daniel Ferenc,Enrique Fernández,R. Firpo,Jose Flix,M. V. Fonseca,Ll. Font,M. Fuchs,Nicola Galante,R. J. García-López,M. Garczarczyk,Markus Gaug,Maria Giller,Florian Goebel,D. Hakobyan,Masaaki Hayashida,T. Hengstebeck,A. Herrero,D. Höhne,J. Hose,Dario Hrupec,C. C. Hsu,P. Jacon,T. Jogler,R. Kosyra,D. Kranich,R. Kritzer,A. Laille,Elina Lindfors,Saverio Lombardi,Francesco Longo,J. López,M. López,E. Lorenz,E. Lorenz,P. Majumdar,G. Maneva,K. Mannheim,Oriana Mansutti,Mosè Mariotti,M. I. Martínez,Daniel Mazin,C. Merck,Mario Meucci,M. Meyer,Jose Miguel Miranda,R. Mirzoyan,S. Mizobuchi,Abelardo Moralejo,Daniel Nieto,K. Nilsson,Jelena Ninkovic,E. Oña-Wilhelmi,N. Otte,N. Otte,I. Oya,David Paneque,David Paneque,M. Panniello,Riccardo Paoletti,J. M. Paredes,M. Pasanen,D. Pascoli,F. Pauss,R. Pegna,Massimo Persic,Massimo Persic,L. Peruzzo,A. Piccioli,Elisa Prandini,N. Puchades,A. Raymers,Wolfgang Rhode,Marc Ribó,J. Rico,M. Rissi,A. Robert,S. Rügamer,A. Saggion,Takashi Saito,Alvaro Sanchez,P. Sartori,V. Scalzotto,V. Scapin,R. Schmitt,T. Schweizer,M. Shayduk,M. Shayduk,K. Shinozaki,S. N. Shore,N. Sidro,A. Sillanpää,Dorota Sobczyńska,Antonio Stamerra,L. S. Stark,L. O. Takalo,Fabrizio Tavecchio,Petar Temnikov,D. Tescaro,Masahiro Teshima,Diego F. Torres,Diego F. Torres,Nicola Turini,H. Vankov,V. Vitale,Robert Wagner,Tadeusz Wibig,W. Wittek,F. Zandanel,Roberta Zanin,J. Zapatero +149 more
TL;DR: The MAGIC telescope was used to observe the blazar Markarian 501 (Mrk 501) at energies above 100 GeV from May through July 2005 as mentioned in this paper, and the high sensitivity of the instrument enabled the determination of the flux and spectrum of the source on a night-by-night basis.
Journal ArticleDOI
Magic discovery of very high energy emission from the fsrq pks 1222+21
Jelena Aleksić,L. A. Antonelli,P. Antoranz,Michael Backes,Juan Abel Barrio,Denis Bastieri,J. Becerra González,J. Becerra González,W. Bednarek,Andrei Berdyugin,K. Berger,K. Berger,Elisa Bernardini,Adrian Biland,Oscar Blanch,Ralph Bock,A. Boller,G. Bonnoli,D. Borla Tridon,Ilana M. Braun,Thomas Bretz,Thomas Bretz,A. Cañellas,E. Carmona,Alessandro Carosi,Pierre Colin,E. Colombo,Jose Luis Contreras,Juan Cortina,L. Cossio,Stefano Covino,Francesco Dazzi,A. De Angelis,E. De Cea del Pozo,B. De Lotto,C. Delgado Mendez,A. Diago Ortega,A. Diago Ortega,M. Doert,Aaron Dominguez,D. Dominis Prester,Daniela Dorner,Michele Doro,Dominik Elsaesser,Daniel Ferenc,M. V. Fonseca,Ll. Font,Christian Fruck,R. J. García López,R. J. García López,Markus Garczarczyk,D. Garrido,Gianluca Giavitto,Nikola Godinovic,Daniela Hadasch,D. Häfner,Artemio Herrero,Artemio Herrero,D. Hildebrand,D. Höhne-Mönch,J. Hose,Dario Hrupec,B. Huber,T. Jogler,S. Klepser,T. Krähenbühl,J. Krause,A. La Barbera,Damir Lelas,E. Leonardo,Elina Lindfors,Saverio Lombardi,M. López,E. Lorenz,E. Lorenz,M. Makariev,G. Maneva,Nijil Mankuzhiyil,Karl Mannheim,L. Maraschi,Mosè Mariotti,M. I. Martínez,Daniel Mazin,Daniel Mazin,Mario Meucci,Jose Miguel Miranda,R. Mirzoyan,Hiroko Miyamoto,J. Moldón,Abelardo Moralejo,Daniel Nieto,Kari Nilsson,Reiko Orito,Igor Oya,David Paneque,Riccardo Paoletti,Silvia Pardo,Josep M. Paredes,S. Partini,M. Pasanen,Felicitas Pauss,M. A. Perez-Torres,Massimo Persic,Massimo Persic,L. Peruzzo,M. Pilia,J. Pochon,Francisco Prada,P. G. Prada Moroni,Elisa Prandini,I. Puljak,Ignasi Reichardt,R. Reinthal,Wolfgang Rhode,Marc Ribó,J. Rico,J. Rico,S. Rügamer,A. Saggion,K. Saito,Takashi Saito,M. Salvati,Konstancja Satalecka,V. Scalzotto,V. Scapin,C. Schultz,T. Schweizer,M. Shayduk,S. N. Shore,A. Sillanpää,Julian Sitarek,Dorota Sobczyńska,Felix Spanier,S. Spiro,Antonio Stamerra,B. Steinke,J. Storz,N. Strah,Tihomir Surić,L. O. Takalo,Fabrizio Tavecchio,Petar Temnikov,Tomislav Terzić,D. Tescaro,Masahiro Teshima,M. Thom,O. Tibolla,Diego F. Torres,Diego F. Torres,Aldo Treves,H. Vankov,Patrick Vogler,Robert Wagner,Q. Weitzel,Victor Zabalza,Fabio Zandanel,Roberta Zanin,Yasuyuki T. Tanaka,D. L. Wood,S. Buson +159 more
TL;DR: Very high energy (VHE) gamma-ray emission from the flat spectrum radio quasar (FSRQ) PKS 1222+21 (4C 21.432) was detected with the MAGIC Cherenkov telescopes during a short observation (similar to 0.5 hr) performed on 2010 June 17 as mentioned in this paper.
Journal ArticleDOI
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.
Journal ArticleDOI
Very high energy gamma-ray radiation from the stellar mass black hole binary cygnus X-1
Justin Albert,E. Aliu,H. Anderhub,P. Antoranz,A. Armada,C. Baixeras,Juan Abel Barrio,H. Bartko,Denis Bastieri,Julia Becker,W. Bednarek,K. Berger,Ciro Bigongiari,Adrian Biland,R. K. Bock,R. K. Bock,Pol Bordas,Valentí Bosch-Ramon,Thomas Bretz,I. Britvitch,M. Camara,E. Carmona,Ashot Chilingarian,J. A. Coarasa,S. Commichau,Jose Luis Contreras,Juan Cortina,M. T. Costado,M. T. Costado,V. Curtef,V. Danielyan,Francesco Dazzi,A. De Angelis,C. Delgado,R. de los Reyes,B. De Lotto,E. Domingo-Santamaría,Daniela Dorner,Michele Doro,Manel Errando,Michela Fagiolini,Daniel Ferenc,Enrique Fernández,R. Firpo,Jose Flix,M. V. Fonseca,Ll. Font,M. Fuchs,Nicola Galante,R. J. García-López,R. J. García-López,M. Garczarczyk,Markus Gaug,Maria Giller,Florian Goebel,D. Hakobyan,Masaaki Hayashida,T. Hengstebeck,Artemio Herrero,Artemio Herrero,D. Höhne,J. Hose,C. C. Hsu,P. Jacon,T. Jogler,R. Kosyra,D. Kranich,R. Kritzer,A. Laille,Elina Lindfors,Saverio Lombardi,Francesco Longo,J. López,M. López,E. Lorenz,E. Lorenz,P. Majumdar,G. Maneva,K. Mannheim,Oriana Mansutti,Mosè Mariotti,M. I. Martínez,Daniel Mazin,C. Merck,Mario Meucci,M. Meyer,Jose Miguel Miranda,R. Mirzoyan,S. Mizobuchi,Abelardo Moralejo,Daniel Nieto,K. Nilsson,Jelena Ninkovic,E. Oña-Wilhelmi,N. Otte,N. Otte,I. Oya,M. Panniello,Riccardo Paoletti,J. M. Paredes,M. Pasanen,D. Pascoli,F. Pauss,R. Pegna,Massimo Persic,Massimo Persic,L. Peruzzo,A. Piccioli,Elisa Prandini,N. Puchades,A. Raymers,Wolfgang Rhode,Marc Ribó,J. Rico,M. Rissi,A. Robert,S. Rügamer,A. Saggion,Takashi Saito,Alvaro Sanchez,P. Sartori,V. Scalzotto,V. Scapin,R. Schmitt,T. Schweizer,M. Shayduk,M. Shayduk,K. Shinozaki,Steven N. Shore,N. Sidro,A. Sillanpää,Dorota Sobczyńska,Antonio Stamerra,L. S. Stark,L. O. Takalo,Petar Temnikov,D. Tescaro,Masahiro Teshima,Diego F. Torres,Nicola Turini,H. Vankov,V. Vitale,Robert Wagner,Tadeusz Wibig,W. Wittek,F. Zandanel,Roberta Zanin,J. Zapatero +147 more
TL;DR: The MAGIC observations were performed for a total of 40 hours during 26 nights, spanning the period between 2006 June and November, and the results from the observations in the very high energy band (VHE; GeV) of the black E = 100 g hole X-ray binary (BHXB) Cygnus X-1 were reported in this article.
Journal ArticleDOI
Probing quantum gravity using photons from a flare of the active galactic nucleus Markarian 501 observed by the MAGIC telescope
Justin Albert,E. Aliu,H. Anderhub,L. A. Antonelli,P. Antoranz,Michael Backes,C. Baixeras,Juan Abel Barrio,H. Bartko,Denis Bastieri,Julia Becker,W. Bednarek,K. Berger,Elisa Bernardini,Ciro Bigongiari,Adrian Biland,R. K. Bock,G. Bonnoli,Pol Bordas,Valentí Bosch-Ramon,Thomas Bretz,I. Britvitch,M. Camara,E. Carmona,Ashot Chilingarian,S. Commichau,Jose Luis Contreras,Juan Cortina,M. T. Costado,Stefano Covino,V. Curtef,Francesco Dazzi,A. De Angelis,E. De Cea del Pozo,C. Delgado Mendez,R. de los Reyes,B. De Lotto,M. De Maria,F. De Sabata,Aaron Dominguez,Daniela Dorner,Michele Doro,Manel Errando,Michela Fagiolini,Daniel Ferenc,Enrique Fernández,R. Firpo,M. V. Fonseca,Ll. Font,Nicola Galante,R. J. García López,M. Garczarczyk,Markus Gaug,Florian Goebel,Masaaki Hayashida,A. Herrero,D. Höhne,J. Hose,C. C. Hsu,S. Huber,T. Jogler,D. Kranich,A. La Barbera,A. Laille,E. Leonardo,Elina Lindfors,Saverio Lombardi,Francesco Longo,M. López,E. Lorenz,P. Majumdar,G. Maneva,Nijil Mankuzhiyil,K. Mannheim,Laura Maraschi,Mosè Mariotti,M. I. Martínez,Daniel Mazin,Mario Meucci,M. Meyer,Jose Miguel Miranda,R. Mirzoyan,Mariano Moles,Abelardo Moralejo,Daniel Nieto,K. Nilsson,Jelena Ninkovic,N. Otte,I. Oya,M. Panniello,Riccardo Paoletti,J. M. Paredes,M. Pasanen,D. Pascoli,F. Pauss,R. Pegna,Miguel A. Pérez-Torres,Massimo Persic,L. Peruzzo,A. Piccioli,Francisco Prada,Elisa Prandini,N. Puchades,A. Raymers,Wolfgang Rhode,Marc Ribó,J. Rico,M. Rissi,A. Robert,S. Rügamer,A. Saggion,Takashi Saito,M. Salvati,Miguel A. Sánchez-Conde,P. Sartori,Konstancja Satalecka,V. Scalzotto,V. Scapin,R. Schmitt,T. Schweizer,M. Shayduk,K. Shinozaki,N. Sidro,Agnieszka Sierpowska-Bartosik,A. Sillanpää,Dorota Sobczyńska,Felix Spanier,Antonio Stamerra,L. S. Stark,L. O. Takalo,Fabrizio Tavecchio,Petar Temnikov,D. Tescaro,Masahiro Teshima,M. Tluczykont,Diego F. Torres,Nicola Turini,H. Vankov,A. Venturini,V. Vitale,Robert Wagner,W. Wittek,Victor Zabalza,Fabio Zandanel,Roberta Zanin,J. Zapatero,John Ellis,Nikolaos Mavromatos,Dimitri V. Nanopoulos,Alexander S. Sakharov,Edward K. G. Sarkisyan +150 more
TL;DR: In this paper, the MAGIC observations were analyzed for a possible correlation with energy, as suggested by some models of quantum gravity (QG), which predict a vacuum refractive index similar or equal to 1 + (E/M-QGn)(n), n = 1, 2.71 +/- 2.57) x 10(-6) s/GeV2, respectively.