Mass loss in semi-detached binaries |
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| Authors: | K D Abhyankar |
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| Institution: | (1) Centre of Advanced Study in Astronomy, Osmania University, Hyderabad, India |
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| Abstract: | Pre-Main-Sequence contracting objects, post-Main-Sequence expanding stars and mass-losing components of semi-detached systems all occupy more or less the same region in the conventional H-R-diagram. We make a transformation to variables  (logL) and (logT
e), where is the difference between the observed quantity, logL or logT
e, and the value of that quantity which a star of the same mass would have on the empirical Main Sequence. It is demonstrated that a plot between the new variables clearly separates the mass-losing stars from other objects which is essentially an effect of the increasing abundance of helium relative to hydrogen.Paper presented at the Lembang-Bamberg IAU Colloquium No. 80 on  Double Stars: Physical Properties and Generic Relations , held at Bandung, Indonesia, 3–7 June, 1983. |
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