Multi-wavelength Observations of the Flaring Gamma-ray Blazar 3C 66A in 2008 October
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en
Article de revue
Ce document a été publié dans
The Astrophysical Journal. 2011-01, vol. 726, p. 43
American Astronomical Society
Résumé en anglais
The BL Lacertae object 3C 66A was detected in a flaring state by the Fermi Large Area Telescope (LAT) and VERITAS in 2008 October. In addition to these gamma-ray observations, F-GAMMA, GASP-WEBT, PAIRITEL, MDM, ATOM, Swift, ...Lire la suite >
The BL Lacertae object 3C 66A was detected in a flaring state by the Fermi Large Area Telescope (LAT) and VERITAS in 2008 October. In addition to these gamma-ray observations, F-GAMMA, GASP-WEBT, PAIRITEL, MDM, ATOM, Swift, and Chandra provided radio to X-ray coverage. The available light curves show variability and, in particular, correlated flares are observed in the optical and Fermi-LAT gamma-ray band. The resulting spectral energy distribution can be well fit using standard leptonic models with and without an external radiation field for inverse-Compton scattering. It is found, however, that only the model with an external radiation field can accommodate the intra-night variability observed at optical wavelengths.< Réduire
Mots clés en anglais
BL Lacertae objects: individual (3C 66A)
galaxies: active
gamma rays: galaxies
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