Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-09-18
Astronomy and Astrophysics
Astrophysics
12 pages including 4 figures, accepted for publication in The Astrophysical Journal Letters
Scientific paper
10.1086/324408
A tight correlation of black hole mass and central velocity dispersion has been found recently for both active and quiescent galaxies. By applying this correlation, we develop a simple method to derive the inclination angles for a sample of 11 Seyfert 1 galaxies that have both measured central velocity dispersions and black hole masses estimated by reverberation mapping. These angles, with a mean value of 36 degree that agrees well with the result obtained by fitting the iron K$\alpha$ lines of Seyfert 1s observed with ASCA, provide further support to the orientation-dependent unification scheme of AGN. A positive correlation of the inclinations with observed FWHMs of H$\beta$ line and a possible anti-correlation with the nuclear radio-loudness have been found. We conclude that more accurate knowledge on inclinations and broad line region dynamics is needed to improve the black hole mass determination of AGN with the reverberation mapping technique.
Han Jian-Long
Wu Xue-Bing
No associations
LandOfFree
Inclinations and black hole masses of Seyfert 1 galaxies 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 Inclinations and black hole masses of Seyfert 1 galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inclinations and black hole masses of Seyfert 1 galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-424574