On the black hole - Bulge mass ratios in Narrow-Line Seyfert 1 galaxies

被引：5

作者：

Bian, WH ^{[1
]}

Zhao, YH

机构：

[1] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China

[2] Nanjing Normal Univ, Dept Phys, Nanjing 210097, Peoples R China

来源：

CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS | 2003年 / 3卷 / 02期

关键词：

galaxies : active; galaxies : nuclei; galaxies : bulges; quasars; galaxies : Seyfert;

D O I：

10.1088/1009-9271/3/2/119

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present estimated ratios of the central black hole mass to the bulge mass (M-bh/M-bulge) for 15 Narrow Line Seyfert 1 galaxies (NLS1s). It is found that NLS1s apparently have lower mass ratios: the average mass ratio is about 1 x 10(-4) with a spread of 2, which is one order of magnitude lower than for Broad Line AGNs and quiescent galaxies. This lower value, as compared to that established essentially for all other types of galaxies, can be accounted for by an underestimation of the black hole masses and an overestimation of the bulge masses in the NLS1s.

引用

页码：119 / 124

页数：6

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