Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ap%26ss..77..179p&link_type=abstract
Astrophysics and Space Science, vol. 77, no. 1, June 1981, p. 179-186.
Astronomy and Astrophysics
Astrophysics
11
Astronomical Photometry, Eclipsing Binary Stars, Star Clusters, Stellar Motions, Eccentric Orbits, Light Curve, Orbit Calculation, Periodic Variations
Scientific paper
The minimum time residuals (O-C) of RT Persei, obtained by using all the times of minima is interpreted in terms of light-time effect, caused by the presence of two more distant components. This system possesses a third body of a mass of about 0.74 solar masses with 41.86 yr orbital period moving in an orbit of eccentricity equal to 0.3, while the hypothetical fourth body of an approximate mass of 0.59 solar masses moving with an orbital period of 100 years has an eccentricity equal to 0.6. The need to study this system astrometrically should be emphasized.
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