Contact binaries with components in poor thermal contact. V - BE Cephei

Astronomy and Astrophysics – Astronomy

Scientific paper

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Cepheus Constellation, Eclipsing Binary Stars, Light Curve, Mass Ratios, B Stars, Roche Limit, Stellar Spectrophotometry, Stellar Temperature

Scientific paper

Photometric observations of BE Cep recently published by Hoffmann (1984) were analyzed using the Wilson-Devinney code. A grid of solutions for several fixed values of the mass ratio was calculated. BE Cep is most probably a contact binary with components in poor thermal contact. The temperature difference between components is about 900 K. The cooler component of the system has a complex surface brightness distribution. Data for 13 contact binaries with components in poor thermal contact are presented.

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