Contact discontinuity as a stabilizing factor in contact binary stars

Details Contact discontinuity as a stabilizing factor in contact binary stars Contact discontinuity as a stabilizing factor in contact binary stars

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...241..416s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 241, no. 2, Jan. 1991, p. 416-418.

Astronomy and Astrophysics

Astrophysics

2

Binary Stars, Stellar Evolution, Stellar Oscillations, Discontinuity, Light Curve, Main Sequence Stars, Stellar Envelopes, Stellar Mass

Scientific paper

A mechanism is proposed, which can stabilize oscillation cycles, in the sense of the thermal relaxation oscillation theory, during the first phase of the contact configuration evolution. It is argued that a special structure of the secondary component (the inversion layer) acts as a stabilizing factor that is complementary to another stabilizing factor (evolved primary component) proposed by Rahunen (1981). The proposition explains quite well the fact that not many systems with EB and EW light curves are observed.

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