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Infrared observations of eight X-ray sources from Galactic plane surveys |
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| Authors: | M G Revnivtsev A Kniazev D I Karasev L Berdnikov S Barway |
| Institution: | 1. Space Research Institute, ul. Profsoyuznaya 84/32, Moscow, 117997, Russia 2. South African Astronomical Observatory, P.O. Box 9, Observatory, Cape Town, 7935, South Africa 3. South African Large Telescope, Cape Town, South Africa 4. Sternberg Astronomical Institute, Universitetskii pr. 13, Moscow, 119991, Russia |
| Abstract: | Increasing the identification completeness of sources from new X-ray sky surveys is a necessary condition for further works on analyzing the formation and long-term evolution of star systems in our Galaxy. Infrared observations of several sources selected from Galactic plane surveys as candidates for low-mass X-ray binaries with the IRSF telescope at the South African Astronomical Observatory are presented. The infrared fluxes have been reliably measured from five of the eight sources (4U 1556-60, 4U 1708-40, AX J165901-4208, IGR J16287-5021, IGR J17350-2045, AX J171922-3703, SAX J1712.6-3739, 4U 1705-32). One of the objects (AX J165901-4208) may be a candidate for symbiotic X-ray binaries, i.e., binaries in which the companion of a relativistic object is a giant star. The distances have been estimated for three sources and the orbital periods have been estimated for two. |
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