CAOSP abstracts, Volume: 28, No.: 1, year: 1998
- Author(s): CHOCHOL, D.; PRIBULLA, T.; ROVITHIS-LIVANIOU, H.; ROVITHIS, P.;
KRANIDIOTIS, A.
- Journal: Contributions of the Astronomical Observatory Skalnate Pleso,
vol. 28, no. 1, p. 51-62.
- Date: 04/1998
- Title: Photometric study of the eclipsing binary EG Cep
- Keyword(s): BINARIES, PHOTOMETRY
- Pages: 51 -- 62
Abstract:
New photoelectric B and V observations of EG Cep were taken and 11 new
minima times were determined. They confirm the long-term increase of the
orbital period. The light-curve analysis shows that the system is
semi-detached. Mass transfer from the less to the more massive component is
responsible for the observed orbital period increase. Variations in the
transferred matter projected onto the surface of the components are
responsible for the colour dependent variable shift of the minima. This effect,
more pronounced in the secondary minima, explains also the disagreement of the
limb-darkening coefficient of the secondary component with the theoretical
value.
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