Image Details
Caption: Fig. 6.
Predicted periods for different primary masses for a ﹩Z=0.2﹩ Z⊙ secondary (8.5 M⊙, 7 R⊙) and for an O7 V secondary (30 M⊙, 9 R⊙) with solar metallicity. The periods are calculated using the Roche lobe sizes ﹩f( q) ﹩ as tabulated by Kopal, and the analytic approximations by Paczyński and Eggleton.
© 2007. The American Astronomical Society. All rights reserved. Printed in U.S.A.