# Re-analysis of close binary systems

Indulekha, K and Kundt, W and Shylaja, BS (1990) Re-analysis of close binary systems. In: Astrophysics and Space Science, 172 (1). pp. 1-14.

 PDF 319.pdf Restricted to Registered users only Download (797Kb) | Request a copy

## Abstract

Line-forming regions around close binaries with strong winds $(\dot {M}/4 \pi r _* \upsilon_\infty >\sim 10^{-4}g cm^{-2})$ are large in extent compared with the stars, large enough to screen them. Their orbitally-modulated Doppler shifts can overestimate the mass function, because of a larger rotational lever arm. In particular, most of the black-hole candidates need not involve companions more massive than a neutron star. The solar-wind problem is reconsidered. An extrapolation to Wolf-Rayet stars suggests that their winds are centrifugally driven. Their mass-loss rates tend to have been overestimated. Seemingly single (massive) stars can hide a (compact) companion.

Item Type: Journal Article Copyright of this article belongs to Springer. Division of Physical & Mathematical Sciences > Joint Astronomy Programme 12 Feb 2008 19 Sep 2010 04:42 http://eprints.iisc.ernet.in/id/eprint/13008