Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21915412c&link_type=abstract
American Astronomical Society, AAS Meeting #219, #154.12
Astronomy and Astrophysics
Astronomy
Scientific paper
We present a study of the structure and kinematics of outflowing winds in nearby active galactic nuclei (AGN). Variability and/or metastable absorption in the nuclear outflows allows us to determine their distances. Determination of the AGN inclinations based on narrow-line region (NLR) kinematics provides our viewing angle with respect to the obscuring torus. Photoionization models of the measured ionic column densities provide the physical conditions (ionization parameters, column densities) in the gas. Combining these parameters with the global covering factor and outflow velocities, we are able to determine the mass outflow rates and kinetic luminosities of the AGN winds. We find that the outflow rates are typically much larger than the accretion rates needed to sustain the AGN luminosities, indicating that most of the incoming fuel get blown out before reaching the inner accretion disk. The kinetic luminosities are often 0.5 to 5% of the bolometric luminosities, suggesting that AGN feedback is important in even moderate luminosity AGN.
Crenshaw Michael D.
Fischer Travis C.
Kraemer Steven B.
Schmitt Henrique R.
Turner Tracey Jane
No associations
LandOfFree
The Structure and Energetics of AGN Winds does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Structure and Energetics of AGN Winds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Structure and Energetics of AGN Winds will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1576905