# Positive and negative feedback of AGN outflows in NGC 5728

## TL;DR

This study investigates how AGN outflows influence star formation in NGC 5728, revealing localized positive feedback effects that enhance star formation in certain regions, while overall impact remains limited due to low AGN luminosity.

## Contribution

It provides the first spatially-resolved analysis linking AGN outflows with star formation activity in NGC 5728, demonstrating both positive feedback and limited overall impact.

## Key findings

- AGN outflows reach ~kpc scales and encounter star formation rings.
- Star formation rate is significantly higher in regions impacted by outflows.
- Overall AGN feedback on galaxy-wide star formation is limited due to low AGN luminosity.

## Abstract

We present a spatially-resolved analysis of ionized and molecular gas in a nearby Seyfert 2 galaxy NGC 5728, using the VLT/MUSE and ALMA data. We find ionized gas outflows out to ~kpc scales, which encounter the star formation ring at 1 kpc radius. The star formation rate of the encountering region is significantly high (~1.8 M$_{\rm sol}/yr/kpc^2$) compared to other regions in the ring. In contrast, the CO (2-1) emission is significantly weaker by a factor of ~3.5, indicating very high star formation efficiency. These results support the positive feedback scenario that the AGN-driven outflows compress the ISM in the ring, enhancing the star formation activity. In addition, we detect outflow regions outside of spiral arms, in which gas is likely to be removed from the spiral arms and no clear sign of star formation is detected. The overall impact of AGN outflows on the global star formation in NGC 5728 is limited, suggesting the feedback of the low-luminosity AGN is insignificant.