Gamma-ray blazars: The view from AGILE |
| |
| Authors: | F D’Ammando A Bulgarelli AW Chen I Donnarumma A Giuliani F Longo L Pacciani G Pucella E Striani M Tavani S Vercellone V Vittorini S Covino HA Krimm CM Raiteri P Romano M Villata |
| |
| Institution: | 1. INAF-IASF Palermo, Via Ugo La Malfa 153, I-90146 Palermo, Italy;2. INAF-IASF Bologna, Via Gobetti 101, I-40129 Bologna, Italy;3. INAF-IASF Milano, Via E. Bassini 15, I-20133 Milano, Italy;4. INAF-IASF Roma, Via Fosso del Cavaliere 100, I-00133 Roma, Italy;5. Dip. di Fisica and INFN, Via Valerio 2, I-34127 Trieste, Italy;6. ENEA Frascati, Vie E. Fermi 45, I-00044 Frascati (Roma), Italy;g INAF, Oss. Astronomico di Brera, Via Bianchi 46, I-23807 Merate (LC), Italy;h NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA;i INAF, Oss. Astronomico di Torino, Via Osservatorio 20, I-10025 Pino Torinese (TO), Italy |
| |
| Abstract: | During the first 3 years of operation the Gamma-Ray Imaging Detector onboard the AGILE satellite detected several blazars in a high γ-ray activity: 3C 279, 3C 454.3, PKS 1510-089, S5 0716+714, 3C 273, W Comae, Mrk 421, PKS 0537-441 and 4C +21.35. Thanks to the rapid dissemination of our alerts, we were able to obtain multiwavelength data from other observatories such as Spitzer, Swift, RXTE, Suzaku, INTEGRAL, MAGIC, VERITAS, and ARGO as well as radio-to-optical coverage by means of the GASP Project of the WEBT and the REM Telescope. This large multifrequency coverage gave us the opportunity to study the variability correlations between the emission at different frequencies and to obtain simultaneous Spectral Energy Distributions of these sources from radio to γ-ray energy bands, investigating the different mechanisms responsible for their emission and uncovering in some cases a more complex behavior with respect to the standard models. We present a review of the most interesting AGILE results on these γ-ray blazars and their multifrequency data. |
| |
| Keywords: | Gamma-ray sources Quasars Active galactic nuclei BL Lac objects Blazars |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
