Light equation in eclipsing binary CV Boo: third body candidate in elliptical orbit
A short period eclipsing binary star CV Boo is tested for the possible existence of additional bodies in the system with a help of the light equation method. We use data on the moments of minima from the literature as well as from our observations during 2014 May--July. A variation of the CV Boo...
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| creator | Bogomazov, A I Kozyreva, V S Satovskii, B L Krushevska, V N Kuznyetsova, Yu G Ehgamberdiev, Sh A Karimov, R G Khalikova, A V Ibrahimov, M A Irsmambetova, T R Tutukov, A V |
| description | A short period eclipsing binary star CV Boo is tested for the possible existence of additional bodies in the system with a help of the light equation method. We use data on the moments of minima from the literature as well as from our observations during 2014 May--July. A variation of the CV Boo's orbital period is found with a period of \(\approx 75\) d. This variation can be explained by the influence of a third star with a mass of \(\approx 0.4M_{\odot}\) in an eccentric orbit with \(e\approx 0.9\). A possibility that the orbital period changes on long time scales is discussed. The suggested tertiary companion is near the chaotic zone around the central binary, so CV Boo represents an interesting example to test its dynamical evolution. A list of 14 minima moments of the binary obtained from our observations is presented. |
| doi_str_mv | 10.48550/arxiv.1611.04627 |
| format | Article |
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We use data on the moments of minima from the literature as well as from our observations during 2014 May--July. A variation of the CV Boo's orbital period is found with a period of \(\approx 75\) d. This variation can be explained by the influence of a third star with a mass of \(\approx 0.4M_{\odot}\) in an eccentric orbit with \(e\approx 0.9\). A possibility that the orbital period changes on long time scales is discussed. The suggested tertiary companion is near the chaotic zone around the central binary, so CV Boo represents an interesting example to test its dynamical evolution. 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| subjects | Binary stars Companion stars Eccentric orbits Eclipsing binary stars Elliptical orbits Physics - Solar and Stellar Astrophysics |
| title | Light equation in eclipsing binary CV Boo: third body candidate in elliptical orbit |
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