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The Formation of Close Binaries

Published online by Cambridge University Press:  14 August 2015

L. B. Lucy
L. B. Lucy*
Affiliation:
Department of Astronomy Columbia University New York, New York 10027, U.S.A.

Extract

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Although the formation of close binaries has been the subject of numerous investigations in the last 100 years (for a recent review, see Tassoul 1978), we cannot yet claim decisive observational support for any theory, a state of affairs probably reflecting insufficient development of the various theories, rather than a failure to propose the correct mechanism(s). If this is indeed so, we can look forward to significant progress soon, since numerical techniques now allow us - albeit crudely - to follow through to completion binary formation by the two most likely mechanisms, fission and fragmentation. (Herein a binary will be described as having formed by fission if it results from the bifurcation of a rotating protostar as it contracts quasi-statically towards the main sequence and by fragmentation if it results from a rotating protostar's break up into two or more components during, or immediately following, a phase of dynamical collapse).

Type
I. General Reviews and Surveys
Information
Symposium - International Astronomical Union , Volume 88: Close Binary Stars: Observations and Interpretation , 1980 , pp. 7 - 14
Copyright
Copyright © Reidel 1980 

References

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