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2020MNRAS.499.1522M - Mon. Not. R. Astron. Soc., 499, 1522-1529 (2020/November-3)

The contribution of quasar absorption outflows to AGN feedback.

MILLER T.R., ARAV N., XU X. and KRISS G.A.

Abstract (from CDS):

Determining the distance of quasar absorption outflows from the central source (R) and their kinetic luminosity ({dot}Ek) is crucial for understanding their contribution to active galactic nucleus (AGN) feedback. Here, we summarize the results for a sample of nine luminous quasars that were observed with the Hubble Space Telescope. We find that the outflows in more than half of the objects are powerful enough to be the main agents for AGN feedback, and that most outflows are found at R > 100 pc. The sample is representative of the quasar absorption outflow population as a whole and is unbiased towards specific ranges of R and {dot}Ek. Therefore, the analysis results can be extended to the majority of such objects, including broad absorption line quasars. We find that these results are consistent with those of another sample (seven quasars) that is also unbiased towards specific ranges of R and {dot}Ek. Assuming that all quasars have absorption outflows, we conclude that most luminous quasars produce outflows that can contribute significantly to AGN feedback. We also discuss the criterion for whether an outflow is energetic enough to cause AGN feedback effects.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): ISM: jets and outflows - galaxies: active - galaxies: kinematics and dynamics - quasars: absorption lines - quasars: general

Simbad objects: 17

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2021.04.21-08:37:41

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