Title: | Multiwavelength observations of a TeV-Flare from W comae |
Authors: | Acciari, V.A. Aliu, E. Aune, T. Beilicke, M. Benbow, W. Böttcher, M. Boltuch, D. Buckley, J.H. Bradbury, S.M. Bugaev, V. Byrum, K. Cannon, A. Cesarini, A. Ciupik, L. Cogan, P. Cui, W. Dickherber, R. Duke, C. Falcone, A. Finley, J.P. Fortin, P. Fortson, L. Furniss, A. Galante, N. Gall, D. Gibbs, K. Gillanders, G.H. Grube, J. Guenette, R. Gyuk, G. Hanna, D. Holder, J. Hui, C.M. Humensky, T.B. Kaaret, P. Karlsson, N. Kertzman, M. Kieda, D. Konopelko, A. Krawczynski, H. Krennrich, F. Lang, M.J. Lebohec, S. Maier, G. McArthur, S. McCann, A. McCutcheon, M. Millis, J. Moriarty, P. Ong, R.A. Otte, A.N. Pandel, D. Perkins, J.S. Pichel, A. Pohl, M. Quinn, J. Ragan, K. Reyes, L.C. Reynolds, P.T. Roache, E. Rose, H.J. Sembroski, G.H. Smith, A.W. Steele, D. Theiling, M. Thibadeau, S. Varlotta, A. Vassiliev, V.V. Vincent, S. Wakely, S.P. Ward, J.E. Weekes, T.C. Weinstein, A. Weisgarber, T. Williams, D.A. Wissel, S. Wood, M. PIAN, Elena VERCELLONE, STEFANO Donnarumma, I. D'AMMANDO, FILIPPO BULGARELLI, ANDREA Chen, A.W. GIULIANI, ANDREA Longo, F. PACCIANI, LUIGI Pucella, G. VITTORINI, VALERIO TAVANI, Marco ARGAN, ANDREA Barbiellini, G. CARAVEO, PATRIZIA Cattaneo, P.W. Cocco, V. COSTA, Elia Monte, E.D. DE PARIS, GIACINTO Cocco, G.D. EVANGELISTA, YURI FEROCI, MARCO FIORINI, MAURO Froysland, T. Frutti, M. FUSCHINO, FABIO Galli, M. GIANOTTI, Fulvio LABANTI, CLAUDIO Lapshov, I. LAZZAROTTO, FRANCESCO Lipari, P. MARISALDI, MARTINO Mastropietro, M. MEREGHETTI, Sandro Morelli, E. Morselli, A. PELLIZZONI, ALBERTO PAOLO Perotti, F. PIANO, Giovanni Picozza, P. PILIA, Maura Porrovecchio, G. Prest, M. Rapisarda, M. Rappoldi, A. Rubini, A. Sabatini, S. SOFFITTA, PAOLO TRIFOGLIO, MASSIMO TROIS, ALESSIO Vallazza, E. Zambra, A. Zanello, D. PITTORI, Carlotta Santolamazza, P. VERRECCHIA, Francesco Giommi, P. Colafrancesco, S. Salotti, L. VILLATA, Massimo RAITERI, Claudia Maria Aller, H.D. Aller, M.F. Arkharov, A.A. Efimova, N.V. Larionov, V.M. LETO, PAOLO Ligustri, R. Lindfors, E. Pasanen, M. Kurtanidze, O.M. Tetradze, S.D. Lahteenmaki, A. Kotiranta, M. Cucchiara, A. Romano, P. Nesci, R. Pursimo, T. Heidt, J. Benitez, E. Hiriart, D. Nilsson, K. Berdyugin, A. Mujica, R. Dultzin, D. Lopez, J.M. Mommert, M. Sorcia, M. De La Calle Perez, I. |
Issue Date: | 2009 |
Journal: | THE ASTROPHYSICAL JOURNAL |
Number: | 707 |
Issue: | 1 |
First Page: | 612 |
Abstract: | We report results from an intensive multiwavelength campaign on the intermediate-frequency-peaked BL Lacertae object W Com (z = 0.102) during a strong outburst of very high energy gamma-ray emission in 2008 June. The very high energy gamma-ray signal was detected by VERITAS on 2008 June 7-8 with a flux F(>200 GeV) =(5.7 0.6) × 10-11 cm-2 s -1, about three times brighter than during the discovery of gamma-ray emission from W Com by VERITAS in 2008 March. The initial detection of this flare by VERITAS at energies above 200 GeV was followed by observations in high-energy gamma rays (AGILE; E γ≥ 100 MeV), X-rays (Swift and XMM-Newton), and at UV, and ground-based optical and radio monitoring through the GASP-WEBT consortium and other observatories. Here we describe the multiwavelength data and derive the spectral energy distribution of the source from contemporaneous data taken throughout the flare. © 2009. The American Astronomical Society. All rights reserved. |
URI: | http://hdl.handle.net/20.500.12386/33025 |
URL: | https://iopscience.iop.org/article/10.1088/0004-637X/707/1/612 http://www.scopus.com/inward/record.url?eid=2-s2.0-72849142777&partnerID=MN8TOARS |
ISSN: | 0004-637X |
DOI: | 10.1088/0004-637X/707/1/612 |
Bibcode ADS: | 2009ApJ...707..612A |
Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista
|