Optical identification of the hard X-ray source IGR J18257-0707

被引：0

作者：

R. A. Burenin

I. F. Bikmaev

M. G. evnivtsev

J. A. Tomsick

S. Yu. Sazonov

M. N. Pavlinsky

R. A. Sunyaev

机构：

[1] Russian Academy of Sciences,Space Research Institute

[2] Kazan State University,Space Sciences Laboratory

[3] Academy of Sciences of Tatarstan,undefined

[4] Max-Planck-Institut für Astrophysik,undefined

[5] University of California,undefined

来源：

Astronomy Letters | 2009年 / 35卷

关键词：

X-ray sources; gamma-ray sources; active galactic nuclei; optical observations; 95.85.Kr; 95.85.Nv; 95.85.Pw; 98.54.Cm; 98.62.Tc;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We present the results of our optical identification of the hard X-ray source IGR J18257-0707 through its spectrophotometric observations with the optical RTT-150 telescope. The accurate position of the X-ray source determined using Chandra observations has allowed this source to be confidently associatedwith a faint optical object (mR ≈ 20.4) whose optical spectrumexhibits a broad Hα emission line at redshift z = 0.037. Thus, the source IGR J18257-0707 is a type-1 Seyfert galaxy at redshift z = 0.037.

引用

页码：71 / 74

页数：3

共 50 条

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