Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2009-07-23
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
4 pages, 4 figures, to be published in Proceedings of the 31st International Cosmic Ray Conference (ICRC), Lodz, Poland, July
Scientific paper
We report results from an intensive campaign of multiwavelength observations of the intermediate-frequency-peaked BL Lacertae object W Com (z=0.102) during a strong outburst of very high energy (VHE; E > 180 GeV) gamma-ray emission in June 2008. The initial detection of this VHE flare by VERITAS, an array of four 12-m diameter imaging atmospheric-Cherenkov telescopes, was followed by observations in high-energy gamma rays (AGILE, E > 100 MeV), X-rays (Swift), optical and radio wavelengths. The VHE gamma-ray signal was detected by VERITAS on June 7-8 with a flux about three times brighter than during the discovery of VHE gamma-ray emission from W Com by VERITAS in March 2008. A detailed study of the spectral energy distribution of W Com during this flare, including theoretical work, will be presented.
Maier Gernot
Pian Elena
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