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;
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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.
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页码：71 / 74
页数：3
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