An H-R diagram for AGN?

被引：0
|
作者：
Sulentic, JW [1 ]
Marziani, P [1 ]
Calvani, M [1 ]
机构：
[1] Univ Alabama, Tuscaloosa, AL 35487 USA
来源：
X-RAY ASTRONOMY: STELLAR ENDPOINTS, AGN, AND THE DIFFUSE X-RAY BACKGROUND | 2001年 / 599卷
关键词：
galaxies; active;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have been searching for a correlation space that provides an optimal discrimination between the diverse classes of AGN. A space involving FWHM Hbeta, the ratio of EW FeII/EW Hbeta and soft X-ray spectral index shows the strongest discrimination and intercorrelation. It represents a synthesis of several correlations that have emerged in the past decade. We interpret the correlations as driven primarily by orientation and L/M ratio of the central source with an uncertain role for Fe abundance.
引用
收藏
页码：963 / 966
页数：4
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