Formation of binary systems and protoplanetary discs - A unified approach

Details Formation of binary systems and protoplanetary discs - A unified approach Formation of binary systems and protoplanetary discs - A unified approach

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.145..183b&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 145, no. 2, June 1988, p. 183-221. Research supported by CNR.

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Binary Stars, Computational Astrophysics, Protoplanets, Protostars, Star Formation, Angular Momentum, Entropy, Orbital Mechanics, Stellar Envelopes, Thermodynamics

Scientific paper

A thermodynamic approach to the last stages of star formation when a collapsing fragment evolves adiabatically into a single protostar is presented. Angular momentum transfer is shown to be a very efficient mechanism tending to form double stars with small mass secondaries, and total decoupling is shown to form twin binaries. It is noted that disks of larger mass, which would be required to produce protoplanetary systems as a consequence of dynamical instabilities, do not form under any circumstances.

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