Optical Identification of Four Hard X-ray Sources from the INTEGRAL Sky Surveys

被引：3

作者：

Karasev, D., I ^{[1
]}

Sazonov, S. Yu ^{[1
]}

Tkachenko, A. Yu ^{[1
]}

Khorunzhev, G. A. ^{[1
]}

Krivonos, R. A. ^{[1
]}

Medvedev, P. S. ^{[1
]}

Zaznobin, I. A. ^{[1
]}

Mereminskiy, I. A. ^{[1
]}

Burenin, R. A. ^{[1
]}

Pavlinsky, M. N. ^{[1
]}

Eselevich, M., V ^{[2
]}

机构：

[1] Russian Acad Sci, Space Res Inst, Profsoyuznaya Ul 84-32, Moscow 117997, Russia

[2] Russian Acad Sci, Inst Solar Terr Phys, Siberian Branch, POB 4026, Irkutsk 664033, Russia

来源：

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 2019年 / 45卷 / 12期

基金：

美国国家航空航天局;

关键词：

X-ray sources; active galactic nuclei; optical observations; CATACLYSMIC VARIABLES; GALACTIC-CENTER; CLASSIFICATION; TELESCOPE; BINARIES; SPECTRA; CATALOG; REGION; SAMPLE; PLANE;

D O I：

10.1134/S1063773719120028

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We continue the study begun in Karasev et al. (2018) and present the results of our optical identifications of four hard X-ray sources from the INTEGRAL sky surveys. Having first improved the positions of these objects in the sky with the X-ray telescope (XRT) of the Swift observatory, we have identified their counterparts using optical and infrared sky survey data. Then, we have obtained optical spectra for the putative counterparts with the RTT-150 Russian-Turkish telescope and the AZT-33IK telescope. This has allowed the nature of the objects under study to be established. The sources IGR J11079+7106 and IGR J12171+7047 have turned out to be extragalactic in nature and be Seyfert 1 and 2 galaxies, respectively, with the second object being characterized by a large absorption column density. The source IGR J18165-3912 is most likely an intermediate polar with a very high luminosity. The fourth source, IGR J20596+4303, is a chance superposition of two objects-a Seyfert 2 galaxy and a cataclysmic variable.

引用

页码：836 / 846

页数：11

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