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dc.contributor.author | Chen W. | |
dc.contributor.author | Ehgamberdiev S. | |
dc.contributor.author | Goded A. | |
dc.contributor.author | Grishina T. | |
dc.contributor.author | Hiriart D. | |
dc.contributor.author | Hsiao H. | |
dc.contributor.author | Jorstad S. | |
dc.contributor.author | Kimeridze G. | |
dc.contributor.author | Kopatskaya E. | |
dc.contributor.author | Kurtanidze O. | |
dc.contributor.author | Kurtanidze S. | |
dc.contributor.author | Larionov V. | |
dc.contributor.author | Larionova L. | |
dc.contributor.author | Marscher A. | |
dc.contributor.author | Mirzaqulov D. | |
dc.contributor.author | Morozova D. | |
dc.contributor.author | Nilsson K. | |
dc.contributor.author | Samal M. | |
dc.contributor.author | Sigua L. | |
dc.contributor.author | Spassov B. | |
dc.contributor.author | Strigachev A. | |
dc.contributor.author | Takalo L. | |
dc.contributor.author | Antonelli L. | |
dc.contributor.author | Bulgarelli A. | |
dc.contributor.author | Cattaneo P. | |
dc.contributor.author | Colafrancesco S. | |
dc.contributor.author | Giommi P. | |
dc.contributor.author | Longo F. | |
dc.contributor.author | Morselli A. | |
dc.contributor.author | Paoletti F. | |
dc.date.accessioned | 2019-01-22T20:31:44Z | |
dc.date.available | 2019-01-22T20:31:44Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 0004-637X | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/147573 | |
dc.description.abstract | © 2018. The American Astronomical Society. All rights reserved.. 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 The γ-ray flaring data, compared with as yet unpublished simultaneous optical data that will allow constraints on the big blue bump disk luminosity, show very high Compton dominance values of ∼100, with the ratio of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. | |
dc.relation.ispartofseries | Astrophysical Journal | |
dc.subject | galaxies: active | |
dc.subject | gamma rays: galaxies | |
dc.subject | polarization | |
dc.subject | quasars: individual (3C 279) | |
dc.subject | radiation mechanisms: non-thermal | |
dc.subject | X-rays: general | |
dc.title | The Bright γ-ray Flare of 3C 279 in 2015 June: AGILE Detection and Multifrequency Follow-up Observations | |
dc.type | Article | |
dc.relation.ispartofseries-issue | 2 | |
dc.relation.ispartofseries-volume | 856 | |
dc.collection | Публикации сотрудников КФУ | |
dc.source.id | SCOPUS0004637X-2018-856-2-SID85045547537 |