S E M I N A R IDepartament d'Astronomia i Astrofísica
Universitat de València
AGN jet cores from radio to gamma-rays
Y. Y. Kovalev
Astro Space Center of Lebedev Physical Institute, Moscow, Russia
Seminari del departament d'Astronomia i Astrofísica
Dimecres 09 juny 2010
Early results from the Fermi Gamma-ray Space Telescope have triggered multi-band radio-to-gamma-ray studies of AGN jets. In this talk, I will discuss recent results of our analysis of gamma-ray bright blazars, connection between emission mechanisms in radio domain and gamma-rays as well as localization of the site of gamma-ray emission. A study of synchrotron opacity with VLBI at different radio frequencies will be also presented and applied to estimate characteristics of opaque parsec-scale radio cores including the time delay associated with propagation of a perturbation in the core.