Non Conservative Massive Binary Evolution
The observations give us on one hand the mass ratio (q) distribution of OB+OB type binaries in a stage prior to Roche lobe overflow (RLOF), and on the other hand the q distribution of WR binaries which are considered to be in a stage after RLOF. By comparing both distributions one may hope to be able to say something about the mass loss during RLOF.
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