English

Gamma-ray blazars: the view from AGILE

High Energy Astrophysical Phenomena 2019-08-15 v1 Cosmology and Nongalactic Astrophysics

Abstract

During the first 3 years of operation the Gamma-Ray Imaging Detector onboard the AGILE satellite detected several blazars in a high gamma-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 gamma-ray energy bands, investigating the different mechanisms responsible for their emission and uncovering in some cases a more complex behaviour with respect to the standard models. We present a review of the most interesting AGILE results on these gamma-ray blazars and their multifrequency data.

Keywords

Cite

@article{arxiv.1102.4428,
  title  = {Gamma-ray blazars: the view from AGILE},
  author = {F. D'Ammando and A. Bulgarelli and A. W. Chen and I. Donnarumma and A. Giuliani and F. Longo and L. Pacciani and G. Pucella and E. Striani and M. Tavani and S. Vercellone and V. Vittorini and S. Covino and H. A. Krimm and C. M. Raiteri and P. Romano and M. Villata},
  journal= {arXiv preprint arXiv:1102.4428},
  year   = {2019}
}

Comments

25 pages, 10 figures, accepted for publication on Advances in Space Research. Talk presented at the 38th COSPAR Scientific Assembly (Bremen, Germany; July 18-25, 2010)

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