Light / Time Effect in RtPersei
Abstract
The minimum time residuals (OC) of RT Persei, obtained by using all the times of minima is interpreted in terms of lighttime 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