6533b831fe1ef96bd1299a9d

RESEARCH PRODUCT

VLBI studies of TANAMI radio galaxies

Roberto AngioniFlorian R��schEduardo RosMatthias KadlerRoopesh OjhaCornelia M��llerRobert Schulz

subject

High Energy Astrophysical Phenomena (astro-ph.HE)Cosmology and Nongalactic Astrophysics (astro-ph.CO)Astrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics - High Energy Astrophysical PhenomenaAstrophysics::Galaxy AstrophysicsAstrophysics - Cosmology and Nongalactic Astrophysics

description

Radio galaxies are relatively faint at $\gamma$-ray energies, where they make up only 1-2% of all AGN detected by Fermi-LAT. However, they offer a unique perspective to study the intrinsic properties of AGN jets. For this reason, the combination of $\gamma$-ray and multi-wavelength data with high-resolution VLBI monitoring is a powerful tool to tackle the basic unanswered questions about AGN jets. Here we present preliminary results from a sample study of radio galaxies in the Southern hemisphere observed by the TANAMI VLBI monitoring program. We obtain high-resolution maps at 8.4 and 22.3 GHz, and study the jet kinematics using multi-epoch data. We present a preliminary kinematic analysis for the peculiar $\gamma$-ray AGN PKS 0521$-$36.

http://arxiv.org/abs/1612.02424