Optical identification of hard X-ray source IGRJ18257-0707

Details Optical identification of hard X-ray source IGRJ18257-0707 Optical identification of hard X-ray source IGRJ18257-0707

2008-10-14

arxiv.org/abs/0810.2512v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, accepted for publication in Astronomy Letters, the original text in Russian can be found at http://hea.i

Scientific paper

10.1134/S1063773709020017

We present the results of the optical identification of hard X-ray source IGRJ18257-0707 trough the spectroscopic observations of its optical counterpart with RTT150 telescope. Accurate position of the X-ray source, determined using Chandra observations, allowed us to associate this source with the faint optical object (m_R=~20.4), which shows broad H_\alpha emission line in its optical spectrum. Therefore we conclude that the source IGRJ18257-0707 is a type 1 Seyfert galaxy at redshift z=0.037.

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