New active galactic nuclei among the INTEGRAL and SWIFT X-ray sources

被引：19

作者：

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

Mescheryakov, A. V. ^{[1
]}

Revnivtsev, M. G. ^{[1
,2
]}

Sazonov, S. Yu. ^{[1
,2
]}

Bikmaev, I. F. ^{[3
,4
]}

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

Sunyaev, R. A. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Space Res Inst, Moscow 117997, Russia

[2] Max Planck Inst Astrophys, D-85741 Garching, Germany

[3] Kazan VI Lenin State Univ, Kazan 420008, Russia

[4] Acad Sci Tatarstan, Kazan 420111, Russia

来源：

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 2008年 / 34卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

X-ray sources; gamma-ray sources; active galactic nuclei; optical observations;

D O I：

10.1134/S1063773708060017

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of our optical identifications of a set of X-ray sources from the INTEGRAL and SWIFT all-sky surveys. The optical data have been obtained with the 1.5-m Russian-Turkish Telescope (RTT-150). Nine X-ray sources have been identified with active galactic nuclei (AGNs). Two of them are located in the nearby spiral galaxies MCG-01-05-047 and NGC 973 seen almost edge-on. One source, IGR J16562-3301, is probably a BL Lac object (blazar). The remaining AGNs are observed as the starlike nuclei of spiral galaxies whose spectra exhibit broad emission lines. The relation between the hard X-ray (17-60 keV) luminosity and the [O III] 5007 line luminosity, log L (x)/L ([O III]) approximate to 2.1, holds good for most of the AGNs detected in hard X rays. However, the luminosities of some AGNs deviate from this relation. The fraction of such objects can reach similar to 20%. In particular, the [O III] line flux is lower for two nearby edge-on spiral galaxies. This can be explained by the effect of absorption in the galactic disks.

引用

页码：367 / 374

页数：8

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