The formation of ALGOLS without catastrophes

Details The formation of ALGOLS without catastrophes The formation of ALGOLS without catastrophes

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...334..357t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 334, Nov. 1, 1988, p. 357-361. SERC-supported research.

Astronomy and Astrophysics

Astrophysics

34

Eclipsing Binary Stars, Star Formation, Stellar Evolution, Hertzsprung-Russell Diagram, Mass Transfer, Roche Limit, Stellar Models, Stellar Winds

Scientific paper

A number of semi-detached Algol-like binaries must have initiated mass transfer at a late case B stage when the loser possessed a deep convective envelope. If the loser was still the more massive when mass transfer began, then the ensuing mass transfer would take place on a rapid hydrodynamic time scale probably leading to common envelope evolution and possibly to coalescence rather than to an Algol. However, if the initially more massive star loses enough mass by means of an enhanced stellar wind before filling its Roche lobe, overflow can begin on a nuclear time scale. The authors present detailed models of binary systems where ordinary stellar wind mass loss is enhanced by a binary companion according to a simple formula and they use these to interpret the evolution of Algol-like and related binaries.

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