Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ap%26ss..81..209r&link_type=abstract
Astrophysics and Space Science, vol. 81, no. 1-2, Jan. 1982, p. 209-213.
Astronomy and Astrophysics
Astrophysics
3
Eclipsing Binary Stars, Light Curve, Stellar Evolution, Stellar Models, Computer Techniques, Goodness Of Fit, Photoelectricity, Roche Limit, Spectrum Analysis
Scientific paper
The Wilson and Devinney (1971) method is used to analyze the V and B light curves of the eclipsing binary RU Eridani, in order to obtain a Roche model solution rather than the Russell and Merrill (1952) model used by Sarma and Sanwal (1981). It is found that the system consists of an evolved K1 secondary component which fills its Roche lobe, and an F0 V primary which seems nearly able to fill its own Roche lobe. An estimate of the absolute elements of RU Eri is made on the assumption of a primary component mass corresponding to its spectral type along the lines suggested by Allen (1973).
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