Contact binaries. I - A computational scheme, thermal stability, and linear series

Details Contact binaries. I - A computational scheme, thermal stability, and linear series Contact binaries. I - A computational scheme, thermal stability, and linear series

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...159..317k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 159, no. 1-2, April 1986, p. 317-327. DFG-supported research.

Astronomy and Astrophysics

Astrophysics

15

Binary Stars, Stellar Evolution, Stellar Models, Thermal Stability, Chemical Evolution, Eigenvalues, Hertzsprung-Russell Diagram, Mass Flow

Scientific paper

An efficient scheme for calculating the structure, evolution and thermal stability of contact binaries is described. By means of a generalized Henyey method the system is calculated as a whole, including both components and their interaction. As representative applications, evolutionary calculations are presented for thermal relaxation oscillations and for a chemical evolution. The formulation of the thermal stability problem of contact binaries shows that the eigenvalues can also be calculated by means of this scheme making use of a contour-integral method. General properties of linear series of equilibrium systems are discussed, and the connection with the stability problem is shown.

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