Origin and evolution of semi-detached binaries: Beta Lyrae and SV Centauri

Details Origin and evolution of semi-detached binaries: Beta Lyrae and SV Centauri Origin and evolution of semi-detached binaries: Beta Lyrae and SV Centauri

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...291..786d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 291, no. 3, p. 786-794

Astronomy and Astrophysics

Astrophysics

17

Binary Stars, Mass Transfer, Stellar Evolution, Stellar Mass, Stellar Models, Accretion Disks, Data Reduction, Hertzsprung-Russell Diagram, Mass To Light Ratios, Stellar Luminosity

Scientific paper

Based upon data published by Harmanec & Scholz (1993) and Hubeny and Plavec (1991), a possible set of initial mass values is determine for the semidetached binary system beta Lyrae. A conservative solution corresponds to a case AB of mass transfer and leads to several discrepancies with the observed characteristics. We find that beta Lyrae is approaching the end of the mass transfer, having evolved in a nonconservative way from an initial system of 9 solar mass + 7.65 solar mass. From these values the evolution of both components is followed up to the present state and to the end of the mass transfer. This model is then used to discuss the relationship between the pre-mass reversal system SV Centauri and beta Lyrae.

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