English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We study the interstellar Na I $\lambda \lambda 5890, 5895$ (Na D)absorption-line doublet in a nearly-complete sample of $\sim$9900 nearbySeyfert 2 galaxies, in order to quantify the significance of optical AGNactivity in driving kpc-scale outflows that can quench star formation.Comparison to a carefully matched sample of $\sim$44,000 control objectsindicates that the Seyfert and control population have similar Na D detectionrates ($\sim 5-6%$). Only 53 Seyferts (or 0.5% of the population) are found topotentially display galactic-scale winds, compared to 0.8% of the controlgalaxies. While nearly a third of the Na D outflows observed in our Seyfert 2galaxies occur around the brightest AGN, both radio and infrared data indicatethat star formation could play the dominant role in driving cold-gas outflowsin an even higher fraction of the Na D-outflowing Seyfert 2s. Our resultsindicate that galactic-scale outflows at low redshift are no more frequent inSeyferts than they are in their non-active counterparts, that optical AGN arenot significant contributors to the quenching of star formation in the nearbyUniverse, and that star-formation may actually be the principal driver ofoutflows even in systems that do host an AGN.

This is not the feedback you have been looking for: nearby optical AGN rarely drive kpc-scale cold-gas outflows