Orbital Period Variations of the Eclipsing Binaries RW Cap, BG Peg, and CU Peg
- Authors: Khaliullina A.I.1
-
Affiliations:
- Sternberg Astronomical Institute, Moscow State University
- Issue: Vol 101, No 1 (2024)
- Pages: 12-24
- Section: Articles
- URL: https://journals.rcsi.science/0004-6299/article/view/261213
- DOI: https://doi.org/10.31857/S0004629924010024
- EDN: https://elibrary.ru/LFVSED
- ID: 261213
Cite item
Abstract
The variations in the orbital period of the eclipsing binaries RW Cap, BG Peg, and CU Peg have been analyzed. The variations in the period of RW Cap and BG Peg can be well represented by cyclic variations with large amplitude. It has been shown, that these variations cannot be explained by the presence of a third body. They can be a consequence of the magnetic activity of the secondary components having a convective zone. The variations in the period of CU Peg can be represented by a superposition of a secular period increase due to exchange of matter between the components and cyclic variations. These cyclic variations can occur due to the presence of a third body in the system or they can be a consequence of the magnetic activity of the secondary component.
Keywords
Full Text
About the authors
A. I. Khaliullina
Sternberg Astronomical Institute, Moscow State University
Author for correspondence.
Email: hfh@sai.msu.ru
Russian Federation, Moscow
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