- Author
- Year
- 2010
- Title
- Near-infrared/optical identification of five low-luminosity X-ray pulsators
- Journal
- Monthly Notices of the Royal Astronomical Society
- Volume | Issue number
- 402 | 4
- Pages (from-to)
- 2388-2396
- Document type
- Article
- Faculty
- Faculty of Science (FNWI)
- Institute
- Anton Pannekoek Institute for Astronomy (API)
- Abstract
-
We present the identification of the most likely near-infrared (NIR)/optical counterparts of five low-luminosity X-ray pulsators (AX J1700.1−4157, AX J1740.1−2847, AX J1749.2−2725, AX J1820.5−1434 and AX J1832.3−0840) which have long pulse periods (>150 s). The X-ray properties of these systems suggest that they are likely members of persistent high-mass X-ray binaries or intermediate polars (IPs). Using our Chandra observations, we detected the most likely counterparts of three sources (excluding AX J1820.5−1434 and AX J1832.3−0840) in their European Southern Observatory-New Technology Telescope (ESO-NTT) NIR observations, and a possible counterpart for AX J1820.5−1434 and AX J1832.3−0840 in the Two Micron All Sky Survey and Digitized Sky Survey observations, respectively. We also performed the X-ray timing and spectral analysis for all the sources using our XMM-Newton observations, which further helped us to constrain the nature of these systems. Our multiwavelength observations suggest that AX J1749.2−2725 and AX J1820.5−1434 most likely harbour accreting neutron stars, while AX J1700.1−4157, AX J1740.1−2847 and AX J1832.3−0840 could be IPs.
- URL
- go to publisher's site
- Language
- English
- Note
- ID: 460
- Persistent Identifier
- https://hdl.handle.net/11245/1.336431
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