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pro vyhledávání: '"Tvardovskyi, D. E."'
Autor:
Tvardovskyi, D. E.
This is our regular research in the field of cyclic O-C changes and third components. In this article the results of four new stars investigation is described. These stars are: BD And, SV Cam, V0836 Cyg and XZ CMi. All of them have cyclic O-C curve w
Externí odkaz:
http://arxiv.org/abs/2012.12322
Autor:
Tvardovskyi, D. E.
This research is our forth article related to the topic of cyclic O-C changes, third components as the physical process that cause these changes and elliptical orbits of the third components. Here five more eclipsing binary stars were investigated: E
Externí odkaz:
http://arxiv.org/abs/1912.12639
In our research, we studied 9 eclipsing binary stars: AR Lac, U CrB, S Equ, SU Boo, VV UMa, WW Gem, YY Eri, V0404 Lyr, HP Aur. We collected large sets of moments of minima from BRNO and observational data from AAVSO databases. Then, we obtained momen
Externí odkaz:
http://arxiv.org/abs/1912.02087
We investigated two variable stars AH Tau and ZZ Cas. They are eclipsing binaries of W UMa and $\beta$ Lyr types. The period changes with time. The reason for steady changes of the period could be the mass transfer (the flow of matter) between compon
Externí odkaz:
http://arxiv.org/abs/1810.09256
Akademický článek
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Publikováno v:
Publications of the Astronomical Society of Japan; Jun2022, Vol. 74 Issue 3, p533-544, 12p
