Abstract
Using a spherically symmetric approximation for the radiation pressure force to compute a possible critical surface for binary systems, previous authors found that the surface opens up at the far side of the companion. It is shown that this effect may be unreal, and could be a consequence of the simple approximation for the radiation pressure force. Due to the influence of the radiation force, mass will be lost over the whole surface of the star. In that way much mass could leave the system in massive binary systems. On the basis of evolutionary models, including mass loss by stellar wind, our results were applied on the X-ray binaries 3U 1700-37 and HD 77581.
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Vanbeveren, D. The influence of the radiation pressure force on possible critical surfaces in binary systems. Astrophys Space Sci 57, 41–51 (1978). https://doi.org/10.1007/BF00639045
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DOI: https://doi.org/10.1007/BF00639045