Cosimo Nigro DESY-Zeuthen

MONITORING FLAT SPECTRUM RADIO QUASARS WITH MAGIC

Among the classes of VHE gamma-ray emitters, blazars are the most favorably detected by the stereoscopic Imaging Air Cherenkov Telescopes system of MAGIC. Sensitive to gamma-ray energies down to 50 GeV, MAGIC strongly contribute to increase their census, particularly with the newly emerging type of Flat Spectrum Radio Quasars. Standing out as highly redshifted emitters of the blazar class, they are characterized by softer VHE gamma-ray spectra and are favorably detected during flares, making their multiwavelenght monitoring crucial. An overview of the observational picture of AGN and blazars will be given, along with an introduction to the IACT technique and to the MAGIC experiment and analysis chain. The FSRQs PKS1510-089 will be presented as a case of study, describing its MWL monitoring from radio (VLBA) to X-ray (Swift) and HE gamma-ray (AGILE, Fermi-LAT) and its connection to MAGIC observations, in particular during the flaring activity in May 2015.