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How close to each other do two stars have to be for one to steal material from the other? | Astronomy.com

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How close to each other do two stars have to be for one to steal material from the other?

FROM THE December 2012 ISSUE

How close to each other do two stars have to be for one to steal material from the other?

Eddie Hackett, Tampa, Florida

Published: Monday, October 29, 2012

This т??tidal mass transferт?? depends on the size of the donor sun relative to the binary separation and, to a lesser extent, the ratio of donor-to-accretor mass. For two stars of the same mass, if the donor starт??s radius exceeds 38 percent of the binary separation, the accretor will steal mass no matter the separation.

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