The black hole mass of BL Lacertae objects from the stellar velocity dispersion of the host galaxy

被引：61

作者：

Falomo, R

Kotilainen, JK

Treves, A

机构：

[1] Astron Observ Padova, I-35122 Padua, Italy

[2] Univ Turku, Tuorla Observ, FIN-21500 Piikkio, Finland

[3] Univ Insubria, I-22100 Como, Italy

来源：

ASTROPHYSICAL JOURNAL | 2002年 / 569卷 / 01期

基金：

美国国家科学基金会;

关键词：

BL Lacertae objects : general galaxies : active; galaxies : elliptical and lenticular cD; galaxies : kinematics and dynamics galaxies : nuclei;

D O I：

10.1086/340642

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The correlation between black hole mass M-BH and stellar velocity dispersion sigma in nearby elliptical galaxies MBH affords us a novel way to determine M-BH in active galaxies. We report on measurements of sigma from optical spectra MBH of seven BL Lacertae host galaxies. The derived values of sigma are in the range of 160-290 km s(-1) corresponding to M-BH of 5 x 10(7)-1 x 10(9) M-.. The average ratio of M-BH to the host galaxy mass is 1.4 x 10(-3), consistent with that estimated in other active and inactive galaxies. The velocity dispersions and the derived values of M-BH of the BL Lac objects are similar to those obtained for low-redshift radio galaxies, in good agreement with MBH the predictions of the unified models for radio-loud active galaxies.

引用

页码：L35 / L38

页数：4

共 29 条

[1] A theoretical model for the Mbh-σ relation for supermassive black holes in galaxies [J].