Quasars and ultraluminous infrared galaxies: At the limit?

被引：48
|
作者：
McLeod, KK
Rieke, GH
Storrie-Lombardi, LJ
机构：
[1] Wellesley Coll, Whitin Observ, Wellesley, MA 02481 USA
[2] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA
[3] Observ Carnegie Inst Washington, Pasadena, CA 91101 USA
来源：
ASTROPHYSICAL JOURNAL | 1999年 / 511卷 / 02期
基金：
美国国家航空航天局;
关键词：
accretion; accretion disks; galaxies : active; galaxies : photometry; infrared : galaxies;
D O I：
10.1086/311848
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have detected the host galaxies of 16 nearby, radio-quiet quasars using images obtained with the Near-Infrared Camera and MultiObject Spectrometer. We confirm that these luminous quasars tend to live in luminous, early-type host galaxies, and we use the host-galaxy magnitudes to refine the luminosity/host-mass limit inferred from ground-based studies. If quasars obey the relation M-blackhole/M-spheroid similar to 0.006 found for massive dark objects in nonactive galaxies, then our analysis implies that they radiate at up to similar to 20% of the Eddington rate. An analogous analysis for ultraluminous infrared galaxies shows them to accrete at up to similar Eddington fractions, consistent with the hypothesis that some of them an powered by embedded quasars.
引用
收藏
页码：L67 / L70
页数：4
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