Narrow components within the FeKα profile of NGC 3516:: Evidence of the importance of general relativistic effects?

被引：115

作者：

Turner, TJ

Mushotzky, RF

Yaqoob, T

George, IM

Snowden, SL

Netzer, H

Kraemer, SB

Nandra, K

Chelouche, D

机构：

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

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

[3] Johns Hopkins Univ, Dept Phys & Astron, Ctr Astrophys Sci, Bloomberg Ctr, Baltimore, MD 21218 USA

[4] Univ Space Res Assoc, Seabrook, MD 20706 USA

[5] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

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

来源：

ASTROPHYSICAL JOURNAL | 2002年 / 574卷 / 02期

基金：

美国国家航空航天局; 以色列科学基金会;

关键词：

galaxies : active; galaxies : individual (NGC 3516); galaxies : nuclei; galaxies : Seyfert;

D O I：

10.1086/342504

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results from a simultaneous Chandra High Energy Transmission Grating and XMM-Newton observation of NGC 3516. We find evidence of several narrow components of Fe Kalpha along with a broad line. We consider the possibility that the lines arise in a blob of material ejected from the nucleus with velocity similar to0.25c. We also consider an origin in a neutral accretion disk, suffering enhanced illumination at 35R(g) and 175R(g),perhaps as a result of magnetic reconnection. The presence of these narrow features indicates there is no Comptonizing region along the line of sight to the nucleus. This in turn is compelling support for the hypothesis that broad Fe Kalpha components are, in general, produced by strong gravity.

引用

页码：L123 / L127

页数：5

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