Light / Time Effect in Rt-Persei
Abstract
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 0.74M ⊙ 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 0.59M ⊙ 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.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- June 1981
- DOI:
- 10.1007/BF00648765
- Bibcode:
- 1981Ap&SS..77..179P
- Keywords:
-
- Astronomical Photometry;
- Eclipsing Binary Stars;
- Star Clusters;
- Stellar Motions;
- Eccentric Orbits;
- Light Curve;
- Orbit Calculation;
- Periodic Variations;
- Astronomy