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Accretion and the Properties of Protobinary Systems

Published online by Cambridge University Press:  13 May 2016

Matthew R. Bate
Matthew R. Bate*
Affiliation:
Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB4 1NB, United Kingdom

Abstract

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We discuss the evolution of the properties of a protobinary system which forms via fragmentation within a collapsing molecular cloud core and grows to its final mass by accreting from the gaseous envelope. We predict how the mass ratio distributions and the masses of the circumstellar and circumbinary discs depend on the binary's separation, the primary's mass, and the properties of the pre-collapse molecular cloud core. We also discuss how the properties of binaries may depend on whether they were formed in isolated molecular cloud cores or in stellar clusters.

Type
X. Evolution of Young Binary Systems
Information
Symposium - International Astronomical Union , Volume 200: The Formation of Binary Stars , 2001 , pp. 429 - 438
Copyright
Copyright © Astronomical Society of the Pacific 2001 

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