Identification of four X-ray sources from the INTEGRAL and Swift catalogs
| Autor: | Sergey S. Tsygankov, Alexander A. Lutovinov, M. V. Eselevich, A. I. Mironov, I. V. Korobtsev, R. A. Burenin, Mikhail G. Revnivtsev, M. N. Pavlinsky |
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| Rok vydání: | 2013 |
| Předmět: |
High Energy Astrophysical Phenomena (astro-ph.HE)
Swift Physics ta115 Active galactic nucleus Be star Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences Astronomy and Astrophysics Quasar Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Redshift Galaxy Pulsar Space and Planetary Science ROSAT Astrophysics - High Energy Astrophysical Phenomena computer Astrophysics::Galaxy Astrophysics computer.programming_language |
| Zdroj: | Astronomy Letters. 39:513-522 |
| ISSN: | 1562-6873 1063-7737 |
| DOI: | 10.1134/s1063773713080069 |
| Popis: | 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. Comment: 11 pages, 6 figures, will be publihsed in Astronomy Letters, V.39, N8, pp.513-522 |
| Databáze: | OpenAIRE |
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