Feedback and ionized gas outflows in four low-radio power AGN at z ∼ 0.15

An increasing number of observations and simulations suggests that low-power (< 10 44 erg s −1 ) jets may be a significant channel of feedback produced by active galactic nuclei (AGN), but little is known about their actual effect on their host galaxies from the observational point of view. We ta...

Full description

Saved in:
Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 2024-05, Vol.685, p.A122
Main Authors: Ulivi, L., Venturi, G., Cresci, G., Marconi, A., Marconcini, C., Amiri, A., Belfiore, F., Bertola, E., Carniani, S., D’Amato, Q., Di Teodoro, E., Ginolfi, M., Girdhar, A., Harrison, C., Maiolino, R., Mannucci, F., Mingozzi, M., Perna, M., Scialpi, M., Tomicic, N., Tozzi, G., Treister, E.
Format: Article
Language:English
Subjects:
Active galactic nuclei
Feedback
Galaxies
Integral field spectroscopy
Jets
Outflow
Power
Power management
Radio emission
Radio jets (astronomy)
Very Large Telescope
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An increasing number of observations and simulations suggests that low-power (< 10 44 erg s −1 ) jets may be a significant channel of feedback produced by active galactic nuclei (AGN), but little is known about their actual effect on their host galaxies from the observational point of view. We targeted four luminous type 2 AGN hosting moderately powerful radio emission (∼10 44 erg s −1 ), two of which and possibly a third are associated with jets, with optical integral field spectroscopy observations from the Multi Unit Spectroscopic Explorer (MUSE) at the Very Large Telescope (VLT) to analyze the properties of their ionized gas as well as the properties and effects of ionized outflows. We combined these observations with Very Large Array (VLA) and e-MERLIN data to investigate the relations and interactions between the radio jets and host galaxies. We detected ionized outflows as traced by the fast bulk motion of the gas. The outflows extended over kiloparsec scales in the direction of the jet, when present. In the two sources with resolved radio jets, we detected a strong enhancement in the emission-line velocity dispersion (up to 1000 km s −1 ) perpendicular to the direction of the radio jets. We also found a correlation between the mass and the energetics of this high-velocity dispersion gas and the radio power, which supports the idea that the radio emission may cause the enhanced turbulence. This phenomenon, which is now being observed in an increasing number of objects, might represent an important channel for AGN feedback on galaxies
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361/202347436