Abstract
Abstract In 2007 July, the blazar 3C 454.3 underwent a flare in the optical, reaching R∼ 13 on July 19. Then the optical flux decreased by one magnitude, being R∼ 14 when the source was detected by the gamma-ray satellite AGILE, which observed the source on July 24–30. At the same time, the Swift satellite performed a series of snapshots. We can construct the simultaneous spectral energy distribution using optical, ultraviolet, X-ray and gamma-ray data. These show that an increased gamma-ray flux is accompanied by a weaker optical/X-ray flux with respect to the flare observed in the spring of 2005 by INTEGRAL and Swift. This confirms earlier suggestions about the behaviour of the jet of 3C 454.3.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Monthly Notices of the Royal Astronomical Society: Letters
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
