Large-Scale Parker Winds in Active Galactic Nuclei

Details Large-Scale Parker Winds in Active Galactic Nuclei Large-Scale Parker Winds in Active Galactic Nuclei

2006-10-25

arxiv.org/abs/astro-ph/0610757v1

Astrophys.J.656:93-104,2007

Astronomy and Astrophysics

Astrophysics

13 pages (emulateapj format), 14 figures, accepted to the Astrophysical Journal

Scientific paper

10.1086/510324

We build and test Parker-wind models to apply to observations of large-scale (of order 100 pc) outflows from Active Galactic Nuclei (AGNs). These models include detailed photoionization simulations, the observed radially varying mass profile, adiabatic cooling, and approximations for clouds dragged along in the wind and the interaction of the wind with the circumnuclear ISM of the galaxy. We test this model against recent HST/STIS observations of [O III] emission-line kinematics (in particular, we test against those observed in NGC 4151, but approximately the same kinematics is observed in NGC 1068 and Mrk 3) to constrain the viability of large-scale thermal winds in AGNs. We find that adiabatic cooling dominates in these outflows, decelerating Parker winds on large scales, making them highly unlikely as explanations of the observed kinematics.

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