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Identification of Four X-ray Sources from the INTEGRAL and Swift Catalogs

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 registered X-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 ~46.674 s that is a member of a high-mass X-ray binary, probably 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.

preprint2013arXivOpen access
A. A. LutovinovA. I. MironovR. A. BureninM. G. RevnivtsevS. S. TsygankovM. N. PavlinskyI. V. KorobtsevM. V. Eselevich
astro-ph.HE
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A. A. LutovinovA. I. MironovR. A. BureninM. G. RevnivtsevS. S. TsygankovM. N. PavlinskyI. V. KorobtsevM. V. Eselevich

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