XMM-Newton follow-up observations of AGILE-triggered gamma-ray flaring blazars

We propose XMMNewton observations of flaring blazars triggered by the AGILEgammaray satellite. For the first time after GCRO it will be possible toobserve blazars during high gammaray activity states from a few keV up to a fewGeV. This chance will be crucial to study the simultaneous spectral and temporalbehaviour of blazars and to study the synchrotron to Inverse Compton (IC)transition region. Quasisimultaneous observations by XMMNewton and AGILE ofblazars in active states will be important to establish the peaks of the nuFnuspectra, to study the broadband SED, and to constrain the emitting particledistributions and acceleration mechanisms. We request 3 x 15 ksec XMMNewton ToOobservations (2 days apart) to cover the first major flare detected by AGILE. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]