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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.

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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
Publication: Astrophysics and Space Science
Publisher: Springer
Additional Information: Copyright of this article belongs to Springer.
Department/Centre: Division of Physical & Mathematical Sciences > Joint Astronomy Programme
Date Deposited: 12 Feb 2008
Last Modified: 19 Sep 2010 04:42
URI: http://eprints.iisc.ac.in/id/eprint/13008

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