Published online by Cambridge University Press: 14 August 2015
The ratio between rotational angular momentum, J rot, and orbital angular momentum, J orb, in close binary systems and its variation with mass ratio is studied. The tables and the graphs give this variation for detached systems, contact systems, semidetached systems and for systems containing a supernova-remnant component and a contact component. For this study some statistical relations of close binary stars were used.
The ratio J rot/J orb is sensitive to the variation of the mass ratio q. If q differs much from unity and if the concentration of the stellar matter is moderate (polytropic index n ~ 3), the neglect of rotational angular momentum, J rot, is not justified.