Hidden quasars in ultraluminous infrared galaxies

被引：0
|
作者：
Tran, HD [1 ]
Brotherton, MS [1 ]
Stanford, SA [1 ]
van Breugel, W [1 ]
机构：
[1] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA
来源：
ACTIVE GALACTIC NUCLEI AND RELATED PHENOMENA | 1999年 / 194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：
Many ultraluminous infrared galaxies (ULIRGs) are powered by quasars hidden in the center, but many are also powered by starbursts. A simply diagnostic diagram is proposed that can identify obscured quasars in ULIRGs by their high-ionization emission lines ([O III]lambda5007/Hbeta greater than or similar to 5), and "warm" IR color (f(25)/f(60) greater than or similar to 0.25).
引用
收藏
页码：181 / 183
页数：3
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