Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.244..619s&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 244, June 15, 1990, p. 619-633. Research supported by S
Astronomy and Astrophysics
Astronomy
11
Binary Stars, Deep Scattering Layers, Energy Dissipation, Energy Transfer, Light Curve, Wolf-Rayet Stars, Stellar Atmospheres, Stellar Luminosity, Stellar Models
Scientific paper
A new and simple mechanism for the energy transfer in W UMa binary systems was proposed by Hazlehurst (1985) to resolve the 'light curve paradox' in these systems so that even contact binaries of the secularly stable type could exhibit W UMa-type light curves. Hazlehurst argued that, although energy is transferred between the contact components in the deep adiabatic layers (by high-energy interlopers), it is finally dissipated in the surface layers of the secondary components of W UMa stars, thus contributing to their surface luminosity. In this paper, the mechanism is simulated numerically, showing that it is unlikely that such interlopers will be able to reach those surface layers where it is thought that they will dissipate their energy. Although the model is qualitatively attractive, it seems to fail when examined quantitatively.
Connon Smith Robert
Robertson John A.
Sinjab I. M.
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