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Orbital-Period Variations of the Eclipsing Binaries RY Aur,GG Cas,RS Lep,and RV Tri |
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| Authors: | Khaliullina A I |
| Institution: | 1.Sternberg Astronomical Institute, Lomonosov Moscow University, Moscow, 119234, Russia ; |
| Abstract: | Variations of the orbital periods of the eclipsing binaries RY Aur, GG Cas, RS Lep, and RV Tri are analyzed. The period variations in all of these systems can be represented as a superposition of a secular period decrease and cyclic variations that can be explained with the light-time effect due to the presence of a third body in the system. The secular period decrease could be due to magnetic braking. |
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