Sample of optically unidentified X-ray binaries in the Galactic bulge: constraints on the physical nature from infrared photometric surveys

Autor:	Ivan Zolotukhin, Mikhail G. Revnivtsev
Rok vydání:	2014
Předmět:	High Energy Astrophysical Phenomena (astro-ph.HE) Physics Infrared media_common.quotation_subject FOS: Physical sciences Astronomy Flux Astronomy and Astrophysics Astrophysics Luminosity Space and Planetary Science Sky Bulge Roche lobe Astrophysics - High Energy Astrophysical Phenomena media_common
Zdroj:	Monthly Notices of the Royal Astronomical Society. 446:2418-2427
ISSN:	1365-2966 0035-8711
DOI:	10.1093/mnras/stu2212
Popis:	We report on the archival near-infrared and mid-infrared observations of 7 persistent X-ray sources situated in the Galactic bulge using data from the UKIRT Infrared Deep Sky Survey (UKIDSS), Spitzer Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) and the Wide-field Infrared Survey Explorer (WISE) all-sky survey. We were able to successfully identify, or provide upper flux limits for the systems SAX J1747.0-2853, IGR J17464-2811, AX J1754.2-2754, IGR J17597-2201, IGR J18134-1636, IGR J18256-1035, Ser X-1 and constrain the nature of these systems. In the case of IGR J17597-2201 we present arguments that the source accretes matter from the stellar wind rather than via Roche lobe overflow of the secondary. We suggest that, at its X-ray luminosity of $10^{34-35}$ erg s$^{-1}$, we are probing the poorly known class of wind-fed low-mass X-ray binaries (LMXBs). 11 pages, 5 figures, accepted to MNRAS
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c63db41a2f510918faafdc7652a816b https://doi.org/10.1093/mnras/stu2212 Zobrazit plný text záznamu