Quasi-periodic features due to clumps orbiting around a black hole

被引：14
|
作者：
Karas, V [1 ]
机构：
[1] Charles Univ Prague, Astron Inst, CZ-18000 Prague 8, Czech Republic
来源：
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 1999年 / 51卷 / 03期
关键词：
accretion disks; black holes; X-rays : sources;
D O I：
10.1093/pasj/51.3.317
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The expected Fourier power-spectrum density is examined with regard to the shape and quality factor Q of features which are predicted to appear in a signal from clumps orbiting near a marginally stable orbit of a compact body. It is shown that clumps distributed randomly in a narrow range of radii produce quasi-periodic oscillations with Q approximate to 10(2), similar to those observed in many low-mass X-ray binaries.
引用
收藏
页码：317 / 320
页数：4
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