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Not so windy after all: MUSE disentangles AGN-driven winds from merger-induced flows in rapidly-transitioning galaxies by Baron, Dalya; Netzer, Hagai; Lutz, Dieter; Davies, Ric I.; Prochaska, J. Xavier is a scholarly article available to read on EtoBox.

What is Not so windy after all: MUSE disentangles AGN-driven winds from merger-induced flows in rapidly-transitioning galaxies about?

Post-starburst galaxies are believed to be in a rapid transition between major merger starbursts and quiescent ellipticals, where AGN feedback is suggested as one of the processes responsible for the quenching. To study the role of AGN feedback, we constructed a sample of post-starburst candidates with AGN and indications of ionized outflows. We use MUSE/VLT observations to resolve the properties of the stars and multi-phased gas in five of them. All the galaxies show signatures of interaction/merger in their stellar or gas properties, with some galaxies at an early stage of interaction with companions at distances $\sim$50 kpc, suggesting that optical post-starburst signatures may be present well before the final starburst and coalescence. We detect narrow and broad kinematic components in multiple transitions in all the galaxies. Our detailed analysis of their kinematics and morphology suggests that, contrary to our expectation, the properties of the broad kinematic components are inconsistent with AGN-driven winds in 3 out of 5 galaxies. The two exceptions are also the only galaxies in which spatially-resolved NaID P-Cygni profiles are detected. In some cases, the observations a

Author

Baron, Dalya; Netzer, Hagai; Lutz, Dieter; Davies, Ric I.; Prochaska, J. Xavier

Published

2024

Language

EN