E-viri
PDF
Recenzirano
Odprti dostop
-
Acciari, V. A; Aliu, E; Beilicke, M; Benbow, W; Boltuch, D; Buckley, J. H; Byrum, K; Cesarini, A; Cui, W; Duke, C; Falcone, A; Finley, J. P; Fortin, P; Furniss, A; Galante, N; Gall, D; Gibbs, K; Grube, J; Guenette, R; Humensky, T. B; Karlsson, N; Kertzman, M; Kieda, D; Konopelko, A; Krawczynski, H; Krennrich, F; Maier, G; McArthur, S; Millis, J; Moriarty, P; Otte, A. N; Perkins, J. S; Pichel, A; Pohl, M; Quinn, J; Ragan, K; Reyes, L. C; Rose, H. J; Smith, A. W; Steele, D; Theiling, M; Varlotta, A; Vassiliev, V. V; Vincent, S; Wakely, S. P; Weekes, T. C; Weinstein, A; Williams, D. A; Wissel, S; Vercellone, S; Donnarumma, I; Chen, A. W; Giuliani, A; Pacciani, L; Argan, A; Cattaneo, P. W; Cocco, V; Costa, E; Monte, E. Del; De Paris, G; Cocco, G. Di; Evangelista, Y; Fiorini, M; Frutti, M; Gianotti, F; Labanti, C; Lapshov, I; Lazzarotto, F; Mastropietro, M; Pellizzoni, A; Perotti, F; Piano, G; Porrovecchio, G; Prest, M; Rapisarda, M; Sabatini, S; Soffitta, P; Trifoglio, M; Santolamazza, P; Verrecchia, F; Giommi, P; Villata, M; Raiteri, C. M; Aller, H. D; Arkharov, A. A; Efimova, N. V; Leto, P; Ligustri, R; Pasanen, M; Lahteenmaki, A; Cucchiara, A; Romano, P; Heidt, J; Benitez, E; Hiriart, D; Nilsson, K; Dultzin, D; Lopez, J. M; Mommert, M; Sorcia, M
The Astrophysical journal, 12/2009, Letnik: 707, Številka: 1Journal Article
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) X 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 Delta *g>= 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.
