Abstract

Since its launch in April 2007, the AGILE satellite detected with the Gamma-Ray Imaging Detector several blazars in high γ-ray activity: 3C 279, 3C 454.3, PKS 1510–089, S5 0716+714, 3C 273, W Comae and Mrk 421. Thanks to the rapid dissemination of our alerts, we were able to obtain multiwavelength ToO data from other observatories such as Spitzer, Swift, RXTE, Suzaku, INTEGRAL, MAGIC, VERITAS, 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 truly simultaneous spectral energy distributions of these sources from radio to γ-ray energy bands and to investigate the different mechanisms responsible for their emission. We present an overview of the AGILE results on these γ-ray blazars and the relative multifrequency data.

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