Scientific Seminars

Hard X-ray radio galaxies

Francesca Panessa
IAPS-INAF

2016-11-02    14:00    Brera - Cupola Fiore

I will present our latest results on a sample of radio galaxies selected at hard X-rays, derived from the INTEGRAL/IBIS and Swift/BAT AGN catalogues. They represent ~ 7-10% of the total AGN population and are characterized by high 20-100 keV luminosities and high Eddington ratios. The radio morphology is typical of FRII galaxies and all of them have an optical classification and a measure of the column density. We have found a large fraction of Giant Radio Galaxies in our sample, ~20% compared to the <6% usually found in radio or optically selected sample. We have also investigated the role of absorption in AGN with jets, studying their X-ray column density distribution. The observed fraction of absorbed AGN is around 40% among the total sample, and ~75% among type 2 AGN. The observed fraction of Compton thick AGN is ~2-3%. I will eventually present an interesting case of a jet restarting activity.