Evolution of broad-line emission from active galactic nuclei

被引：134

作者：

Elitzur, Moshe ^{[1
]}

Ho, Luis C. ^{[2
,3
]}

Trump, Jonathan R. ^{[4
,5
]}

机构：

[1] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA

[2] Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China

[3] Observ Carnegie Inst Sci, Pasadena, CA 91101 USA

[4] Univ Calif Santa Cruz, Univ Calif Observ, Lick Observ, Santa Cruz, CA 95064 USA

[5] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2014年 / 438卷 / 04期

关键词：

galaxies: active; galaxies: nuclei; quasars: emission lines; quasars: general; SUPERMASSIVE BLACK-HOLES; DWARF SEYFERT NUCLEI; DRIVEN DISK WINDS; ACCRETION DISK; NEARBY GALAXIES; HOST GALAXIES; VELOCITY DISPERSION; COSMIC EVOLUTION; TYPE-1; AGN; NGC; 5548;

D O I：

10.1093/mnras/stt2445

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Apart from viewing-dependent obscuration, intrinsic broad-line emission from active galactic nuclei (AGN) follows an evolutionary sequence: type 1 -> 1.2/1.5 -> 1.8/1.9 -> 2 as the accretion rate on to the central black hole is decreasing. This spectral evolution is controlled, at least in part, by the parameter L-bol/M-2/3, where L-bol is the AGN bolometric luminosity and M is the black hole mass. Both this dependence and the double-peaked profiles that emerge along the sequence arise naturally in the disc-wind scenario for the AGN broad-line region.

引用

页码：3340 / 3351

页数：12

共 75 条

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