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 The γ-ray flaring data, compared with as yet unpublished simultaneous optical data that will allow constraints on the big blue bump disk luminosity, show very high Compton dominance values of ∼100, with the ratio of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 |
|