The radial velocity curve of HD153919 (4U1700-37) revisited

Abstract

We have re-analysed all available high-resolution ultraviolet IUE spectra of the high-mass X-ray binary HD153919/4U1700-37. The radial velocity semi-amplitude of 20.6 +/- 1.0 km/s and orbital eccentricity of 0.22 +/- 0.04 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).

arXiv comment6 pages, latex, figure included, Astronomy & Astrophysics, in press

References in corpus (5)

• Physical parameters of the high-mass X-ray binary 4U1700-37
• The mass of the neutron star in Vela X-1 and tidally induced non-radial oscillations in GP Vel
• The mass of the neutron star in Vela X-1
• The origin of the runaway high-mass X-ray binary HD153919/4U1700-37
• High-mass X-ray binaries and OB-runaway stars

Cited by in corpus (8)

• The Galactic O-Star Spectroscopic Survey (GOSSS). II. Bright Southern Stars
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• Study of measured pulsar masses and their possible conclusions
• The stellar and wind parameters of six prototypical HMXBs and their evolutionary status
• The X-ray binary 2S0114+650=LSI+65 010:A slow pulsar or tidally-induced pulsations?
• Orbital evolution and search for eccentricity and apsidal motion in the eclipsing HMXB 4U 1700-37
• Confirming NGC 6231 as the parent cluster of the runaway high-mass X-ray binary HD 153919/4U 1700-37 with Gaia DR2
• Possible detection of a new cyclotron feature in 4U 1700-37