SIMBAD references

2025MNRAS.538..593D - Mon. Not. R. Astron. Soc., 538, 593-603 (2025/March-3)

Measuring kinetic feedback in nearby AGN via channel maps.

DAVID E.G., STORCHI-BERGMANN T. and RUSCHEL-DUTRA D.

Abstract (from CDS):

We use velocity channel maps in the [O III] emission line from integral-field spectroscopy obtained with the Gemini GMOS-IFU instrument to derive the ionized gas masses, mass outflow rates, and outflow powers in the central kiloparsec of 11 nearby ($z < 0.02$) active galaxies. We obtain mass-outflow rates as a function of distance from the nucleus and conclude that the highest values are observed within the inner $\approx 200~{\rm pc}$. Using these values and the whole velocity range in the channel maps, we calculate the corresponding outflow powers, that are in the range $10^{37} - 10^{42}~{\rm erg ~s^{-1}}$. We compare the results based on channel maps with those obtained using velocity-integrated measurements and find that, for all other parameter kept fixed, the use of channel maps returns higher mass-outflow rates and kinetic powers for the outflows. Our new calculations give powers that are closer to the coupling efficiencies $0.5\le \epsilon _f\le 5$ per cent which is predicted by models to have a strong effect on the host galaxy, quenching star formation, with nearly half the sources above the 0.5 per cent line.

Abstract Copyright: © 2025 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): galaxies: active

Simbad objects: 11

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