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

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dc.contributor.author Aleksić, Jelena
dc.contributor.author Antonelli, Lucio Angelo
dc.contributor.author Antoranz, Pedro
dc.contributor.author Asensio, María Carmen
dc.contributor.author Backes, Michael
dc.contributor.author Barres De Almeida, Ulisses
dc.contributor.author Barrio, Juan Abel
dc.contributor.author Bednarek, Włodek
dc.contributor.author Berger, Karsten
dc.contributor.author Bernardini, Elisa
dc.contributor.author Biland, Adrian
dc.contributor.author Blanch, Oscar
dc.contributor.author Böck, Rudolf
dc.contributor.author Boller, Andrea
dc.contributor.author Bonnefoy, S.
dc.contributor.author Bonnoli, Giacomo
dc.contributor.author Borla Tridon, D.
dc.contributor.author Carmona, Emiliano
dc.contributor.author Carosi, Alessandro
dc.contributor.author Carreto Fidalgo, D.
dc.contributor.author Colin, Pierre
dc.contributor.author Contreras, José Luis
dc.contributor.author Cortina, Juan
dc.contributor.author Cossio, L.
dc.contributor.author Covino, Stefano
dc.contributor.author Da Vela, P.
dc.contributor.author Dazzi, Francesco
dc.contributor.author De Angelis, Annalisa
dc.contributor.author De Caneva, Gessica
dc.contributor.author De Lotto, Barbara
dc.contributor.author Delgado, C.
dc.contributor.author Doert, Marlene
dc.contributor.author Domínguez, Alberto
dc.contributor.author Dominis Prester, D.
dc.contributor.author Doro, Michele
dc.contributor.author Eisenacher, Dorit
dc.contributor.author Ferenc, Daniel
dc.contributor.author Fruck, C.
dc.contributor.author García López, Ramón J.
dc.contributor.author Garczarczyk, Markus
dc.contributor.author Garrido Terrats, D.
dc.contributor.author Gaug, Markus
dc.contributor.author Giavitto, G.
dc.contributor.author Godinović, N.
dc.contributor.author González Muñoz, A.
dc.contributor.author Gozzini, Silvia R.
dc.contributor.author Hadamek, A.
dc.contributor.author Hadasch, Daniela
dc.contributor.author Herrero, Artemio
dc.contributor.author Hose, Jürgen
dc.contributor.author Hrupec, Dario
dc.contributor.author Idec, W.
dc.contributor.author Jankowski, F.
dc.contributor.author Kadenius, V.
dc.contributor.author Klepser, Stefan
dc.contributor.author Knoetig, M. L.
dc.contributor.author Krähenbühl, Thomas
dc.contributor.author Krause, Julian
dc.contributor.author Kushida, Junko
dc.contributor.author Lelas, Damir
dc.contributor.author Lewandowska, N.
dc.contributor.author Lombardi, Saverio
dc.contributor.author López, María Luisa Osete
dc.contributor.author López-Coto, Rubén
dc.contributor.author López-Oramas, A.
dc.contributor.author Lorenz, Eckárt
dc.contributor.author Makariev, M.
dc.contributor.author Mallot, K.
dc.contributor.author Mankuzhiyil, Nijil
dc.contributor.author Mannheim, Karl
dc.contributor.author Maraschi, Laura
dc.contributor.author Marcote, B.
dc.contributor.author Maríotti, Mosé
dc.contributor.author Martínez, Mario Ivan
dc.contributor.author Masbou, J.
dc.contributor.author Mazin, Daniel
dc.contributor.author Meucci, Mario
dc.contributor.author Miranda, José Miguel
dc.contributor.author Mirzoyan, Razmick G.
dc.contributor.author Moldón, Javier
dc.contributor.author Moralejo, Abelardo
dc.contributor.author Munar-Adrover, P.
dc.contributor.author Nakajima, D.
dc.contributor.author Niedźwiecki, Andrzej
dc.contributor.author Nilsson, Kari
dc.contributor.author Nowak, Nina
dc.contributor.author Orito, Reiko
dc.contributor.author Paiano, S.
dc.contributor.author Palatiello, M.
dc.contributor.author Paneque, David
dc.contributor.author Paoletti, Riccardo
dc.contributor.author Paredes, Josep Maria
dc.contributor.author Partini, S.
dc.contributor.author Persic, Massimo
dc.contributor.author Prada, Francisco
dc.contributor.author Prada Moroni, Pier Giorgio Prada
dc.contributor.author Prandini, Elisa
dc.contributor.author Puljak, Ivica
dc.contributor.author Reichardt, Ignasi
dc.contributor.author Reinthal, Riho
dc.contributor.author Rhode, Wolfgang
dc.contributor.author Ribó, Marc
dc.contributor.author Saggion, Antonio
dc.contributor.author Saito, Koji
dc.contributor.author Saito, Takayuki
dc.contributor.author Satalecka, Konstancja
dc.contributor.author Scalzotto, Villi
dc.contributor.author Scapin, Valeria
dc.contributor.author Shore, Steven N.
dc.contributor.author Sitarek, Julian
dc.contributor.author Spanier, Felix
dc.contributor.author Spiro, S.
dc.contributor.author Stamatescu, Victor
dc.contributor.author Stamerra, Antonio
dc.contributor.author Steinke, Burkhard
dc.contributor.author Storz, J.
dc.contributor.author Sun, S.
dc.contributor.author Surić, Tihomir
dc.contributor.author Takami, Hideki
dc.contributor.author Tavecchio, Fabrizio
dc.contributor.author Terzić, Tomislav
dc.contributor.author Tescaro, Diego
dc.contributor.author Teshima, Masahiro
dc.contributor.author Tibolla, Omar
dc.contributor.author Torres, Diego F.
dc.contributor.author Toyama, T.
dc.contributor.author Treves, Aldo
dc.contributor.author Uellenbeck, Malwina
dc.contributor.author Vogler, Patrick
dc.contributor.author Wagner, Robert Marcus
dc.contributor.author Weitzel, Quirin
dc.contributor.author Zandanel, Fabio
dc.contributor.author Zanin, Roberta
dc.contributor.author Longo, Francesco
dc.contributor.author Lucarelli, Fabrizio
dc.contributor.author Pittori, Carlotta
dc.contributor.author Verrecchia, Francesco
dc.contributor.author Becerra González, Josefa
dc.contributor.author Bretz, Thomas
dc.contributor.author Colombo, Eduardo
dc.contributor.author Dorner, Daniela
dc.contributor.author Elsaesser, Dominik
dc.contributor.author Farina, Emanuele
dc.contributor.author Fonseca, Maria Victoria
dc.contributor.author Font, L
dc.contributor.author La Barbera, Antonio
dc.contributor.author Lindfors, Elina
dc.contributor.author Lozano, I
dc.contributor.author Maneva, Galina
dc.contributor.author Mirzoyan, Razmick G.
dc.contributor.author Rico, Javier
dc.contributor.author Salvati, Marco
dc.contributor.author Schultz, C
dc.contributor.author Schweizer, Thomas
dc.contributor.author Sillanpää, Aimo
dc.contributor.author Snidaric, I
dc.contributor.author Sobczynska, Dorota
dc.contributor.author Takalo, Leo
dc.contributor.author Temnikov, Petar
dc.contributor.other UAM. Departamento de Física Teórica es_ES
dc.date.accessioned 2014-11-05T18:30:25Z
dc.date.available 2014-11-05T18:30:25Z
dc.date.issued 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.identifier.uri http://hdl.handle.net/10486/662431
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 http://dx.doi.org/10.1051/0004-6361/201321197 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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