The origin and physical mechanism of the ensemble Baldwin effect
Astrophysics of Galaxies
2009-03-29 v2
Abstract
We have conducted a systematic investigation of the origin and underlying physics of the line--line and line--continuum correlations of AGNs, particularly the Baldwin effect. Based on the homogeneous sample of Seyfert 1s and QSOs in the SDSS DR4, we find the origin of all the emission-line regularities is Eddington ratio (L/Ledd). The essential physics is that L/Ledd regulates the distributions of the properties (particularly column density) of the clouds bound in the line-emitting region.
Cite
@article{arxiv.0903.0698,
title = {The origin and physical mechanism of the ensemble Baldwin effect},
author = {Xiaobo Dong and Jianguo Wang and Tinggui Wang and Huiyuan Wang and Xiaohui Fan and Hongyan Zhou and Weimin Yuan and Qian Long},
journal= {arXiv preprint arXiv:0903.0698},
year = {2009}
}
Comments
to appear in the proceedings of "The Starburst-AGN Connection Conference",ASP Conference Series. Ver2: An appendix of ``Not Baldwin Effect, but ell Effect?'' is added, with two more figures to unveil the nature of the Baldwin effect of AGNs