Warning: following the coronavirus emergency, all the talks will be given remotely online. The link to connect to the seminar will be available in due time. A playlist of the remote talks already online is available on our YouTube channel »
Is ionised gas outflowing perpendicularly to radio jets?
Davide Lena (SRON, Netherlands Institute for Space Research)
Thursday 28/11/2019 @ 11:30, Sala IV piano Battiferro
Optical integral field spectroscopy of the inner kiloparsec of nearby AGNs has shown a puzzling and unexpected kinematical feature traced by the ionised gas: a region of enhanced velocity dispersion in a plane approximately perpendicular to radio jets and radio extensions, seemingly the plane of the AGN torus. The spatial extent of the velocity dispersion enahncement is often sharply defined, and observed to extend over about 100 - 200 pc either side from the nucleus. Within this region, emission lines display complex profiles, suggesting the coexistence of multiple kinematical components. When feasible, detailed studies suggest the presence of ionised gas in rotation and/or outflow in a plane perpendicular to the axis of the radio jet. In this talk we will present an overview of our results and possible interpretations.