A&A 407, 685-690 (2003)
DOI: 10.1051/0004-6361:20030962

The radial velocity curve of HD 153919 (4U 1700-37) revisited

G. Hammerschlag-Hensberge¹, M. H. van Kerkwijk^{2, 3} and L. Kaper<sup>1

1</sup>  Astronomical Institute "Anton Pannekoek" and Center for High-Energy Astrophysics, University of Amsterdam, Kruislaan 403, 1098 SJ Amsterdam, The Netherlands
²  Astronomical Institute, Utrecht University, PO Box 80000, 3508 TA Utrecht, The Netherlands
³  Dept. of Astronomy & Astrophysics, 60 St George Street, Toronto, ON, M5S 3H8, Canada

(Received 25 March 2003 / Accepted 17 June 2003 )

Abstract
We have re-analysed all available high-resolution ultraviolet IUE spectra of the high-mass X-ray binary HD 153919/4U 1700-37. The radial velocity semi-amplitude of  km s ^-1 and orbital eccentricity of agree very well with the values obtained earlier from optical spectra. They disagree with earlier conclusions for the same data reduced by Heap & Corcoran (1992) and by Stickland & Lloyd (1993).

Key words: stars: binaries: close -- stars: early type -- stars: radial velocities -- stars: individual: HD 153919 -- 4U 1700-37 -- ultraviolet: stars

Offprint request: G. Hammerschlag-Hensberge, godeliev@science.uva.nl

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