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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/91971
- A search for the binary companion to PSR J1740-3052
- Tam, C. R.; Stairs, I. H.; Wagner, S.; Kramer, M.; Manchester, R. N.; Lyne, A. G.; Camilo, F.; D'Amico, N.
- We present results of near-infrared spectroscopy of the late-type star coincident with the young pulsar PSR J. 1740-3052. High-spectral-resolution K-band (∼2.2 μm) observations were obtained in 2003 with the Infrared Spectrometer and Array Camera instrument on the Very Large Telescope and with Phoenix on the Gemini Telescope. We find no consistent evidence of a radial velocity shift in the star compatible with the known pulsar orbit, setting a limit on the minimum mass of the star, if it is the companion, of 60 M⊙. We therefore conclude that the observed star is likely to be a foreground object. No sign of the previously reported Brackett-γ emission was found in this analysis. Our findings support previous suggestions that the companion to PSR J. 1740-3052 is most likely a massive B-type star that has been obscured by the bright late-type star in the foreground.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Information and Communication Technologies. Centre for Astrophysics and Supercomputing
- Monthly Notices of the Royal Astronomical Society, Vol. 406, no. 3 (Aug 2010), pp. 1848-1852
- Publication year
- FOR Code(s)
- 0201 Astronomical and Space Sciences
- Binary systems; Infrared spectroscopy; Late-type stars; PSR J1740-3052; Pulsars
- Wiley-Blackwell Publishing
- Publisher URL
- Copyright © 2010 The Authors. Journal compilation copyright © 2010 RAS.
- Peer reviewed