Burenin R.; Bikmaev I.; Evnivtsev M.; Tomsick J.; Sazonov S.; Pavlinsky M.; Sunyaev R.
(2009)
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 ...