Multiwavelength observations of a TeV-Flare from W Comae
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 June 2008. 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)x10^-11 cm-2s-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>100 MeV), and 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 (SED) of the source from contemporaneous data taken throughout the flare.
Keywords
Cite
@article{arxiv.0910.3750,
title = {Multiwavelength observations of a TeV-Flare from W Comae},
author = {VERITAS collaboration and V. A. Acciari and E. Aliu and T. Aune and M. Beilicke and W. Benbow and M. Bottcher and D. Boltuch and J. H. Buckley and S. M. Bradbury and V. Bugaev and K. Byrum and A. Cannon and A. Cesarini and L. Ciupik and P. Cogan and W. Cui and R. Dickherber and C. Duke and A. Falcone and J. P. Finley and P. Fortin and L. Fortson and A. Furniss and N. Galante and D. Gall and K. Gibbs and G. H. Gillanders and J. Grube and R. Guenette and G. Gyuk and D. Hanna and J. Holder and C. M. Hui and T. B. Humensky and P. Kaaret and N. Karlsson and M. Kertzman and D. Kieda and A. Konopelko and H. Krawczynski and F. Krennrich and M. J. Lang and S. LeBohec and G. Maier and S. McArthur and A. McCann and M. McCutcheon and J. Millis and P. Moriarty and R. A. Ong and A. N. Otte and D. Pandel and J. S. Perkins and A. Pichel and M. Pohl and J. Quinn and K. Ragan and L. C. Reyes and P. T. Reynolds and E. Roache and H. J. Rose and G. H. Sembroski and A. W. Smith and D. Steele and M. Theiling and S. Thibadeau and A. Varlotta and V. V. Vassiliev and S. Vincent and S. P. Wakely and J. E. Ward and T. C. Weekes and A. Weinstein and T. Weisgarber and D. A. Williams and S. Wissel and M. Wood and The AGILE Team and : and E. Pian and S. Vercellone and I. Donnarumma and F. D'Ammando and A. Bulgarelli and A. W. Chen and A. Giuliani and F. Longo and L. Pacciani and G. Pucella and V. Vittorini and M. Tavani and A. Argan and G. Barbiellini and P. Caraveo and P. W. Cattaneo and V. Cocco and E. Costa and E. Del Monte and G. De Paris and G. Di Cocco and Y. Evangelista and M. Feroci and M. Fiorini and T. Froysland and M. Frutti and F. Fuschino and M. Galli and F. Gianotti and C. Labanti and I. Lapshov and F. Lazzarotto and P. Lipari and M. Marisaldi and M. Mastropietro and S. Mereghetti and E. Morelli and A. Morselli and A. Pellizzoni and F. Perotti and G. Piano and P. Picozza and M. Pilia and G. Porrovecchio and M. Prest and M. Rapisarda and A. Rappoldi and A. Rubini and S. Sabatini P. Soffitta and M. Trifoglio and A. Trois and E. Vallazza and A. Zambra and D. Zanello and C. Pittori and P. Santolamazza and F. Verrecchia and P. Giommi and S. Colafrancesco and L. Salotti and M. Villata and C. M. Raiteri and H. D. Aller and M. F. Aller and A. A. Arkharov and N. V. Efimova and V. M. Larionov and P. Leto and R. Ligustri and E. Lindfors and M. Pasanen and O. M. Kurtanidze and S. D. Tetradze and A. Lahteenmaki and M. Kotiranta and A. Cucchiara and P. Romano and R. Nesci and T. Pursimo and J. Heidt and E. Benitez and D. Hiriart and K. Nilsson and A. Berdyugin and R. Mujica and D. Dultzin and J. M. Lopez and M. Mommert and M. Sorcia and I. de la Calle Perez},
journal= {arXiv preprint arXiv:0910.3750},
year = {2016}
}
Comments
26 pages, 5 figures; Accepted for publication by The Astrophysical Journal