论文信息 - The Bright γ-ray Flare of 3C 279 in 2015 June: AGILE Detection and Multifrequency Follow-up Observations - 字舞流文

The Bright γ-ray Flare of 3C 279 in 2015 June: AGILE Detection and Multifrequency Follow-up Observations

We report the AGILE detection and the results of the multifrequency follow-up observations of a bright γ-ray flare of the blazar 3C 279 in 2015 June. We use AGILE and Fermi gamma-ray data, together with Swift X-ray andoptical-ultraviolet data, and ground-based GASP-WEBT optical observations, including polarization information, to study the source variability and the overall spectral energy distribution during the γ-ray flare. The γ-ray flaring data, compared with as yet unpublished simultaneous optical data that will allow constraints on the big blue bump disk luminosity, show very high Compton dominance values of ∼100, with the ratio of γ-ray to optical emission rising by a factor of three in a few hours. The multiwavelength behavior of the source during the flare challenges one-zone leptonic theoretical models. The new observations during the 2015 June flare are also compared with already published data and nonsimultaneous historical 3C 279 archival data.

L. A. Antonelli | Manash R. Samal | W. P. Chen | F. Paoletti | P. Giommi | A. Morselli | D. Carosati | P. Cattaneo | G. Borman | F. Lucarelli | M. Perri | C. Pittori | S. Ehgamberdiev | J. Acosta-Pulido | C. Raiteri | M. Villata | V. Larionov | D. Mirzaqulov | F. Longo | A. Marscher | S. Jorstad | M. Tavani | A. Bulgarelli | I. Donnarumma | S. Vercellone | F. Verrecchia | V. Vittorini | S. Colafrancesco | L. Takalo | S. Puccetti | O. Kurtanidze | R. Bachev | S. O. Kurtanidze | A. Strigachev | M. Carnerero | T. Grishina | E. Kopatskaya | L. Larionova | D. Morozova | K. Nilsson | E. Benítez | D. Hiriart | H. Hsiao | G. Kimeridze | L. Sigua | B. Spassov | A. Goded | L. Antonelli

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