Supermassive black holes in the early universe

被引：0
|
作者：
Dietrich, M [1 ]
Hamann, F [1 ]
机构：
[1] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA
来源：
INTERPLAY AMONG BLACK HOLES, STARS AND ISM IN GALACTIC NUCLEI | 2004年 / 222期
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We analyzed spectra of 15 luminous high-redshift quasars (3.3 < z < 5.1) and we derived black hole masses that are based on H beta, MgII, and CIV emission lines, in the range of 2 x 10(8) < M-bh < 4 x 10(10)M(circle dot). Assuming exponential growth of the black holes we estimated that it takes about several 100 Myr up to 1 Gyr to accumulate the observed black hole masses, i.e., most of the SMBHs that power these quasars at high-redshifts, started to grow at z similar or equal to 5 to 10.
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页码：517 / 518
页数：2
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