Title of article :
The radial velocity curve of HD 153919 (4U 1700-37) revisited
Author/Authors :
Kerkwijk، M. H. van نويسنده , , Kaper، L. نويسنده , , Hammerschlag-Hensberge، G. نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Abstract :
We have re-analysed all available high-resolution ultraviolet IUE spectra of the high-mass X-ray binary HD 153919/4U 170037. The radial velocity semi-amplitude of 20.6 +-1.0 km s^ -1 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).
Keywords :
binaries , close , early type , Individual , radial velocities , Ultraviolet , HD 153919 , stars , 4U 1700-37
Journal title :
Astronomy and Astrophysics
Journal title :
Astronomy and Astrophysics
