Transient relativistically shifted lines as a probe of black hole systems

被引：51

作者：

Turner, TJ

Kraemer, SB

Reeves, JN

机构：

[1] Univ Maryland Baltimore Cty, Dept Phys, Joint Ctr Astrophys, Baltimore, MD 21250 USA

[2] NASA, High Energy Astrophys Lab, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[3] Catholic Univ Amer, NASA, GSFC, Greenbelt, MD 20771 USA

来源：

ASTROPHYSICAL JOURNAL | 2004年 / 603卷 / 01期

关键词：

accretion; accretion disks; galaxies : active; galaxies : individual (Markarian 766); stars : individual (Cygnus X-1);

D O I：

10.1086/381312

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

X-ray spectra of Seyfert galaxies have revealed a new type of X-ray spectral feature, one that appears to offer important new insight into the black hole system. XMM revealed several narrow emission lines redward of Fe Kalpha in NGC 3516. Since that discovery the phenomenon has been observed in other Seyfert galaxies, e. g., NGC 7314 and ESO 198-G24. We present new evidence for a redshifted Fe line in XMM spectra of Mrk 766. These data reveal the first evidence for a significant shift in the energy of such a line, occurring over a few tens of kiloseconds. This shift may be interpreted as deceleration of an ejected blob of gas traveling close to the escape velocity.

引用

页码：62 / 66

页数：5

共 19 条

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