The black hole bulge relationship in quasars

被引:249
作者
Shields, GA
Gebhardt, K
Salviander, S
Wills, BJ
Xie, BR
Brotherton, MS
Yuan, JT
Dietrich, M
机构
[1] Univ Texas, Dept Astron, Austin, TX 78712 USA
[2] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08855 USA
[3] Natl Opt Astron Observ, Tucson, AZ 85726 USA
[4] Univ Florida, Dept Astron, Gainesville, FL 32611 USA
关键词
black hole physics; galaxies : active; quasars : general;
D O I
10.1086/345348
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We use quasi-stellar object (QSO) emission-line widths to examine the M-BH-sigma(*) relationship as a function of redshift and to extend the relationship to larger masses. Supermassive black holes in galactic nuclei are closely related to the bulge of the host galaxy. The mass of the black hole M-BH increases with the bulge luminosity and with the velocity dispersion of the bulge stars, sigma(*). An important clue to the origin of this correlation would be an observational determination of the evolution, if any, in the M-BH-sigma(*) relationship as a function of cosmic time. The high luminosity of QSOs affords the potential for studies at large redshifts. We derive black hole masses from the continuum luminosity and the width of the broad Hbeta line and sigma(*) from the width of the narrow [O III] lines. We find that radio-quiet QSOs conform to the established M-BH-sigma(*) relationship up to values of M(BH)approximate to10(10) M-circle dot, with no discernible change in the relationship out to redshifts of zapproximate to3. These results are consistent with the idea that the growth of supermassive black holes and massive bulges occurred simultaneously.
引用
收藏
页码:124 / 133
页数:10
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