Identification of four X-ray sources from the INTEGRAL and Swift catalogs

: Lutovinov AA, Mironov AI, Burenin RA, Revnivtsev MG, Tsygankov SS, Pavlinsky MN, Korobtsev IV, Eselevich MV

Publisher: MAIK NAUKA/INTERPERIODICA/SPRINGER

: 2013

: Astronomy Letters / Pis'ma v Astronomicheskii Zhurnal

: ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS

: ASTRON LETT+

: 8

: 39

: 8

: 513

: 522

: 10

: 1063-7737

DOI: https://doi.org/10.1134/S1063773713080069

Four hard X-ray sources from the INTEGRAL and Swift catalogs have been identified. X-ray and optical spectra have been obtained for each of the objects being studied by using data from the INTEGRAL, Swift, ROSAT, and Chandra X-ray observatories as well as observations with the RTT-150 and AZT-33IK optical telescopes. Two sources (SWIFT J1553.6+2606 and SWIFT J1852.2+8424) are shown to be extragalactic in nature: the first is a quasar, while the recordedX-ray flux from the second is the total emission from two Seyfert 1 galaxies at redshifts 0.1828 and 0.2249. The source IGR J22534+6243 resides in our Galaxy and is an X-ray pulsar with a period of similar to 46.674 s that is a member of a high-mass X-ray binary with a Be star. The nature of yet another Galactic source, SWIFT J1852.8+3002, is not completely clear and infrared spectroscopy is needed to establish it.