Large-scale Parker winds in active galactic nuclei

John E. Everett'*, Norm Murray

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


We build and test Parker wind models to apply to observations of large-scale (∼100 pc) outflows from 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 circum-nuclear 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.

Original languageEnglish (US)
Pages (from-to)93-104
Number of pages12
JournalAstrophysical Journal
Issue number1 I
StatePublished - Feb 10 2007


  • Galaxies: Seyfert
  • Galaxies: active
  • Galaxies: individual (NGC 4151, NGC 1068, Mrk 3)
  • Galaxies: nuclei
  • Hydrodynamics
  • Radiative transfer

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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