Very high energy gamma-ray observation of the peculiar transient event Swift J1644+57 with the MAGIC telescopes and AGILE

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Show simple item record Aleksić, Jelena Antonelli, Lucio Angelo Antoranz, Pedro Asensio, María Carmen Backes, Michael Barres De Almeida, Ulisses Barrio, Juan Abel Bednarek, Włodek Berger, Karsten Bernardini, Elisa Biland, Adrian Blanch, Oscar Böck, Rudolf Boller, Andrea Bonnefoy, S. Bonnoli, Giacomo Borla Tridon, D. Carmona, Emiliano Carosi, Alessandro Carreto Fidalgo, D. Colin, Pierre Contreras, José Luis Cortina, Juan Cossio, L. Covino, Stefano Da Vela, P. Dazzi, Francesco De Angelis, Annalisa De Caneva, Gessica De Lotto, Barbara Delgado, C. Doert, Marlene Domínguez, Alberto Dominis Prester, D. Doro, Michele Eisenacher, Dorit Ferenc, Daniel Fruck, C. García López, Ramón J. Garczarczyk, Markus Garrido Terrats, D. Gaug, Markus Giavitto, G. Godinović, N. González Muñoz, A. Gozzini, Silvia R. Hadamek, A. Hadasch, Daniela Herrero, Artemio Hose, Jürgen Hrupec, Dario Idec, W. Jankowski, F. Kadenius, V. Klepser, Stefan Knoetig, M. L. Krähenbühl, Thomas Krause, Julian Kushida, Junko Lelas, Damir Lewandowska, N. Lombardi, Saverio López, María Luisa Osete López-Coto, Rubén López-Oramas, A. Lorenz, Eckárt Makariev, M. Mallot, K. Mankuzhiyil, Nijil Mannheim, Karl Maraschi, Laura Marcote, B. Maríotti, Mosé Martínez, Mario Ivan Masbou, J. Mazin, Daniel Meucci, Mario Miranda, José Miguel Mirzoyan, Razmick G. Moldón, Javier Moralejo, Abelardo Munar-Adrover, P. Nakajima, D. Niedźwiecki, Andrzej Nilsson, Kari Nowak, Nina Orito, Reiko Paiano, S. Palatiello, M. Paneque, David Paoletti, Riccardo Paredes, Josep Maria Partini, S. Persic, Massimo Prada, Francisco Prada Moroni, Pier Giorgio Prada Prandini, Elisa Puljak, Ivica Reichardt, Ignasi Reinthal, Riho Rhode, Wolfgang Ribó, Marc Saggion, Antonio Saito, Koji Saito, Takayuki Satalecka, Konstancja Scalzotto, Villi Scapin, Valeria Shore, Steven N. Sitarek, Julian Spanier, Felix Spiro, S. Stamatescu, Victor Stamerra, Antonio Steinke, Burkhard Storz, J. Sun, S. Surić, Tihomir Takami, Hideki Tavecchio, Fabrizio Terzić, Tomislav Tescaro, Diego Teshima, Masahiro Tibolla, Omar Torres, Diego F. Toyama, T. Treves, Aldo Uellenbeck, Malwina Vogler, Patrick Wagner, Robert Marcus Weitzel, Quirin Zandanel, Fabio Zanin, Roberta Longo, Francesco Lucarelli, Fabrizio Pittori, Carlotta Verrecchia, Francesco Becerra González, Josefa Bretz, Thomas Colombo, Eduardo Dorner, Daniela Elsaesser, Dominik Farina, Emanuele Fonseca, Maria Victoria Font, L La Barbera, Antonio Lindfors, Elina Lozano, I Maneva, Galina Mirzoyan, Razmick G. Rico, Javier Salvati, Marco Schultz, C Schweizer, Thomas Sillanpää, Aimo Snidaric, I Sobczynska, Dorota Takalo, Leo Temnikov, Petar
dc.contributor.other UAM. Departamento de Física Teórica es_ES 2014-11-05T18:30:25Z 2014-11-05T18:30:25Z 2013-04-17
dc.identifier.citation Astronomy and Astrophysics 552 (2013): A112 en_US
dc.identifier.issn 0004-6361(print) es_ES
dc.identifier.issn 1432-0746 (online) es_ES
dc.description Astronomy & Astrophysics 552 (2013): A112 reproduced with permission from Astronomy & Astrophysics en_US
dc.description.abstract Context. On March 28, 2011, the BAT instrument on board the Swift satellite detected a new transient event that in the very beginning was classified as a gamma ray burst (GRB). However, the unusual X-ray flaring activity observed from a few hours up to days after the onset of the event made a different nature seem to be more likely. The long-lasting activity in the X-ray band, followed by a delayed brightening of the source in infrared and radio activity, suggested that it is better interpreted as a tidal disruption event that triggered a dormant black hole in the nucleus of the host galaxy and generated an outflowing jet of relativistic matter. Aims. Detecting a very high energy emission component from such a peculiar object would be enable us to constrain the dynamic of the emission processes and the jet model by providing information on the Doppler factor of the relativistic ejecta. Methods. The MAGIC telescopes observed the peculiar source Swift J1644+57 during the flaring phase, searching for gamma-ray emission at very-high energy (VHE, E > 100 GeV), starting observations nearly 2.5 days after the trigger time. MAGIC collected a total of 28 h of data during 12 nights. The source was observed in wobble mode during dark time at a mean zenith angle of 35. Data were reduced using a new image-cleaning algorithm, the so-called sum-cleaning, which guarantees a better noise suppression and a lower energy threshold than the standard analysis procedure. Results. No clear evidence for emission above the energy threshold of 100 GeV was found. MAGIC observations permit one to constrain the emission from the source down to 100 GeV, which favors models that explain the observed lower energy variable emission. Data analysis of simultaneous observations from AGILE, Fermi and VERITAS also provide negative detection, which additionally constrain the self-Compton emission component. en_US
dc.description.sponsorship The support of the German BMBF and MPG, the Italian INFN, the Swiss National Fund SNF, and the Spanish MICINN is gratefully acknowledged. This work was also supported by the CPAN CSD2007-00042 and MultiDark CSD2009-00064 projects of the Spanish Consolider-Ingenio 2010 programme, by grant DO02-353 of the Bulgarian NSF, by grant 127740 of the Academy of Finland, by the DFG Cluster of Excellence “Origin and Structure of the Universe”, by the DFG Collaborative Research Centers SFB823/C4 and SFB876/C3, and by the Polish MNiSzW grant 745/N-HESS-MAGIC/2010/0. en_US
dc.format.extent 6 pag. es_ES
dc.format.mimetype application/pdf en
dc.language.iso eng en
dc.publisher ESO en_US
dc.relation.ispartof Astronomy and Astrophysics en_US
dc.rights © 2013 ESO. en_US
dc.subject.other Galaxies: active es_ES
dc.subject.other Gamma rays: general es_ES
dc.subject.other Radiation mechanisms: non-thermal es_ES
dc.title Very high energy gamma-ray observation of the peculiar transient event Swift J1644+57 with the MAGIC telescopes and AGILE es_ES
dc.type article es_ES
dc.subject.eciencia Física es_ES
dc.relation.publisherversion es_ES
dc.identifier.doi 10.1051/0004-6361/201321197 es_ES
dc.identifier.publicationfirstpage A112 es_ES
dc.identifier.publicationlastpage A112 es_ES
dc.identifier.publicationvolume 552 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion en
dc.rights.accessRights openAccess es_ES

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