Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974a%26a....36..409d&link_type=abstract
Astronomy and Astrophysics, vol. 36, no. 3, Dec. 1974, p. 409-413.
Astronomy and Astrophysics
Astrophysics
7
Binary Stars, Convective Flow, Mass Ratios, Protostars, Stellar Evolution, Astronomical Models, Gravitational Collapse, Multiphase Flow, Stellar Mass, Stellar Mass Ejection, Stellar Rotation
Scientific paper
The origin of close binaries is considered within the framework of existing ideas on the formation of stars. After collapse, convection develops quickly in the protostar. If rotation was initially differential, then convection will make rotation uniform so that the balance between the centrifugal and gravitational forces in the outer layers may be destroyed. These layers will then be thrown off forming a ring around the star. The mass loss results in an increase of the convective zone in extent, so that the transfer of matter to the ring will proceed until all of the convective envelope is lost. The ring is unstable and it is suggested that it will form the second component. The mass ratio of components of the new system then is determined by the mass ratio of the convective zone and the stable core of the protostar.
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