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Arlen, T.; Aune, T.; Beilicke, M.; Benbow, W.; Bouvier, A.; Buckley, J.H.; Bugaev, V.; Cesarini, A.; Ciupik, L.; Connolly, M.P.; Cui, W.; Dickherber, R.; Dumm, J.; Errando, M.; Falcone, A.; Federici, S.; Feng, Q.; Finley, J.P. (...) Järvelä, E. "Rapid TeV gamma-ray flaring of BL Lacertae" (2013) Astrophysical Journal. 762(2)
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Abstract:

We report on the detection of a very rapid TeV gamma-ray flare from BL Lacertae on 2011 June 28 with the Very Energetic Radiation Imaging Telescope Array System (VERITAS). The flaring activity was observed during a 34.6 minute exposure, when the integral flux above 200 GeV reached (3.4 ± 0.6) × 10-6 photons m-2 s-1, roughly 125% of the Crab Nebula flux measured by VERITAS. The light curve indicates that the observations missed the rising phase of the flare but covered a significant portion of the decaying phase. The exponential decay time was determined to be 13 ± 4 minutes, making it one of the most rapid gamma-ray flares seen from a TeV blazar. The gamma-ray spectrum of BL Lacertae during the flare was soft, with a photon index of 3.6 ± 0.4, which is in agreement with the measurement made previously by MAGIC in a lower flaring state. Contemporaneous radio observations of the source with the Very Long Baseline Array revealed the emergence of a new, superluminal component from the core around the time of the TeV gamma-ray flare, accompanied by changes in the optical polarization angle. Changes in flux also appear to have occurred at optical, UV, and GeV gamma-ray wavelengths at the time of the flare, although they are difficult to quantify precisely due to sparse coverage. A strong flare was seen at radio wavelengths roughly four months later, which might be related to the gamma-ray flaring activities. We discuss the implications of these multiwavelength results. © 2013. The American Astronomical Society. All rights reserved..

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Documento: Artículo
Título:Rapid TeV gamma-ray flaring of BL Lacertae
Autor:Arlen, T.; Aune, T.; Beilicke, M.; Benbow, W.; Bouvier, A.; Buckley, J.H.; Bugaev, V.; Cesarini, A.; Ciupik, L.; Connolly, M.P.; Cui, W.; Dickherber, R.; Dumm, J.; Errando, M.; Falcone, A.; Federici, S.; Feng, Q.; Finley, J.P.; Finnegan, G.; Fortson, L.; Furniss, A.; Galante, N.; Gall, D.; Griffin, S.; Grube, J.; Gyuk, G.; Hanna, D.; Holder, J.; Humensky, T.B.; Kaaret, P.; Karlsson, N.; Kertzman, M.; Khassen, Y.; Kieda, D.; Krawczynski, H.; Krennrich, F.; Maier, G.; Moriarty, P.; Mukherjee, R.; Nelson, T.; O'Faoláin De Bhróithe, A.; Ong, R.A.; Orr, M.; Park, N.; Perkins, J.S.; Pichel, A.; Pohl, M.; Prokoph, H.; Quinn, J.; Ragan, K.; Reyes, L.C.; Reynolds, P.T.; Roache, E.; Saxon, D.B.; Schroedter, M.; Sembroski, G.H.; Staszak, D.; Telezhinsky, I.; Tešić, G.; Theiling, M.; Tsurusaki, K.; Varlotta, A.; Vincent, S.; Wakely, S.P.; Weekes, T.C.; Weinstein, A.; Welsing, R.; Williams, D.A.; Zitzer, B.; Jorstad, S.G.; MacDonald, N.R.; Marscher, A.P.; Smith, P.S.; Walker, R.C.; Hovatta, T.; Richards, J.; Max-Moerbeck, W.; Readhead, A.; Lister, M.L.; Kovalev, Y.Y.; Pushkarev, A.B.; Gurwell, M.A.; Lähteenmäki, A.; Nieppola, E.; Tornikoski, M.; Järvelä, E.
Filiación:Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, United States
Santa Cruz Institute for Particle Physics, Department of Physics, University of California, Santa Cruz, CA 95064, United States
Department of Physics, Washington University, St. Louis, MO 63130, United States
Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, United States
School of Physics, National University of Ireland Galway, University Road, Galway, Ireland
Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605, United States
Department of Physics, Purdue University, West Lafayette, IN 47907, United States
School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, United States
Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027, United States
Department of Astronomy and Astrophysics, 525 Davey Lab, Pennsylvania State University, University Park, PA 16802, United States
DESY, Platanenallee 6, D-15738 Zeuthen, Germany
Institute of Physics and Astronomy, University of Potsdam, D-14476 Potsdam-Golm, Germany
Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, United States
Department of Physics and Astronomy, University of Iowa, Van Allen Hall, Iowa City, IA 52242, United States
Physics Department, McGill University, Montreal QC H3A 2T8, Canada
Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE 19716, United States
Physics Department, Columbia University, New York, NY 10027, United States
Department of Physics and Astronomy, DePauw University, Greencastle IN 46135-0037, United States
School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, United States
Department of Life and Physical Sciences, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland
Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, United States
CRESST, Astroparticle Physics Laboratory NASA/GSFC, Greenbelt, MD 20771, United States
Center for Space Science and Technology, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, United States
Instituto de Astronomia y Fisica Del Espacio, Casilla de Correo 67 - Sucursal 28, (C1428ZAA) Ciudad Autónoma de Buenos Aires, Argentina
Physics Department, California Polytechnic State University, San Luis Obispo, CA 94307, United States
Department of Applied Physics and Instrumentation, Cork Institute of Technology, Bishopstown, Cork, Ireland
Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, United States
Institute for Astrophysical Research, Boston University, 725 Commonwealth Ave., Boston, MA 02215, United States
Astronomical Institute, St. Petersburg State University, Universitetskij Pr. 28, Petrodvorets, 198504 St. Petersburg, Russian Federation
Steward Observatory, University of Arizona, Tucson, AZ 85716, United States
National Radio Astronomy Observatory, PO Box O, Socorro, NM 87801, United States
Cahill Center for Astronomy and Astrophysics, California Institute of Technology, 1200 E. California Blvd, Pasadena, CA 91125, United States
Astro Space Center of Lebedev Physical Institute, Russian Academy of Sciences, Profsoyuznaya 84/32, 117997 Moscow, Russian Federation
Max-Planck-Institute for Radio Astronomy, Auf dem Huegel 69, D-53121 Bonn, Germany
Pulkovo Astronomical Observatory, Pulkovskoe Chaussee 65/1, 196140 St. Petersburg, Russian Federation
Crimean Astrophysical Observatory, 98409 Nauchny, Ukraine
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, United States
Aalto University Metsähovi Radio Observatory, Metsähovintie 114, FIN-02540 Kylmälä, Finland
Palabras clave:galaxies: active; gamma rays: galaxies
Año:2013
Volumen:762
Número:2
DOI: http://dx.doi.org/10.1088/0004-637X/762/2/92
Título revista:Astrophysical Journal
Título revista abreviado:Astrophys. J.
ISSN:0004637X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v762_n2_p_Arlen

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Citas:

---------- APA ----------
Arlen, T., Aune, T., Beilicke, M., Benbow, W., Bouvier, A., Buckley, J.H., Bugaev, V.,..., Järvelä, E. (2013) . Rapid TeV gamma-ray flaring of BL Lacertae. Astrophysical Journal, 762(2).
http://dx.doi.org/10.1088/0004-637X/762/2/92
---------- CHICAGO ----------
Arlen, T., Aune, T., Beilicke, M., Benbow, W., Bouvier, A., Buckley, J.H., et al. "Rapid TeV gamma-ray flaring of BL Lacertae" . Astrophysical Journal 762, no. 2 (2013).
http://dx.doi.org/10.1088/0004-637X/762/2/92
---------- MLA ----------
Arlen, T., Aune, T., Beilicke, M., Benbow, W., Bouvier, A., Buckley, J.H., et al. "Rapid TeV gamma-ray flaring of BL Lacertae" . Astrophysical Journal, vol. 762, no. 2, 2013.
http://dx.doi.org/10.1088/0004-637X/762/2/92
---------- VANCOUVER ----------
Arlen, T., Aune, T., Beilicke, M., Benbow, W., Bouvier, A., Buckley, J.H., et al. Rapid TeV gamma-ray flaring of BL Lacertae. Astrophys. J. 2013;762(2).
http://dx.doi.org/10.1088/0004-637X/762/2/92