Investigating the Correlation of Outflow Kinematics with Radio Activity. Gas Outflows in AGNs. VII

TL;DR

This study investigates the relationship between ionized gas outflows and radio activity in AGNs, finding that accretion rate primarily influences outflows, with radio activity playing a secondary role.

Contribution

It provides a comprehensive analysis of a large AGN sample, showing that accretion rate correlates more strongly with gas outflows than radio properties.

Findings

No significant difference in [O III] kinematics across radio subclasses after correction.

High and low radio-Eddington ratio AGNs show differences in gas kinematics.

Ionized gas outflows are mainly driven by accretion rate, not radio activity.

Abstract

We explore the relationship between the ionized gas outflows and radio activity using a sample of $\sim$ 6000 AGNs at z < 0.4 with the kinematical measurement based on the [O III] line profile and the radio detection in the VLA FIRST Survey. To quantify radio activity, we divide our sample into a series of binary subclasses based on the radio properties, i.e., radio-luminous/radio-weak, AGN-dominated/star-formation-contaminated, compact/extended, and radio-loud/radio-quiet. None of the binary subclasses exhibits a significant difference in the normalized [O III] velocity dispersion at a given [O III] luminosity once we correct for the influence of the host galaxy gravitational potential. We only detect a significant difference of [O III] kinematics between high and low radio-Eddington ratio (L$_{1.4 GHz}$/L$_{Edd}$) AGNs. In contrast, we find a remarkable difference in ionized gas kinematics between high and low bolometric-Eddington ratio AGNs. These results suggest that accretion rate is the primary mechanism in driving ionized gas outflows, while radio activity may play a secondary role providing additional influence on gas kinematics