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

页码：963 / 966

页数：4

共 50 条

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