Seminar: Recent eVLBI results on AGN, and the connection to high energy emission

Dr Marcello Giroletti 

INAF, Bologna

Download the pdf poster.

Recent developments have made real time connection to radio telescopes and on-line correlation an exciting reality for VLBI experiments. In an era of all-sky monitors, such as the gamma-ray Fermi space telescope, this is becoming increasingly more important, both for pre-arranged multi wavelength campaigns and for rapid response to transient events. I will present two cases of eVLBI multi-epoch experiments: (1) eEVN obser- vations of the radio galaxy M87, simultaneous to very high energy ob- servations, aimed at constraining the place and mechanisms responsi- ble of high energy emission; (2) Global eVLBI observations (including Europe-Australia baselines) of the radio loud narrow-line Seyfert1 PMN J0948+0022, the first source of its kind to be detected at gamma-rays, taken as part of an intense multi-wavelength campaign searching for the physical parameters of the source.