Period changes of the sample of eclipsing binaries with active chromospheres
In this work we present results derived from analysis of the O-C behaviour of ten eclipsing binary systems: AR Lac, CG Cyg, HP Aur, MM Her, RS CVn, RT And, SV Cam, V471 Tau, WW Dra and CF Tuc. It was proved on the basis of moments of minima compiled from the literature and new ones determined from...
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| Опубліковано в: : | Advances in Astronomy and Space Physics |
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| Дата: | 2012 |
| Автори: | , , , , , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Головна астрономічна обсерваторія НАН України
2012
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/119181 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Period changes of the sample of eclipsing binaries with active chromospheres / D. Jableka, S. Zola, B. Zakrzewski, T. Szymanski, A. Kuzmicz, S.N. de Villiers, M. Zejda, D. Koziel-Wierzbowska // Advances in Astronomy and Space Physics. — 2012. — Т. 2., вип. 2. — С. 128-131. — Бібліогр.: 16 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-119181 |
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dspace |
| spelling |
Jableka, D. Zola, S. Zakrzewski, B. Szymanski, T. Kuzmicz, A. de Villiers, S.N. Zejda, M. Koziel-Wierzbowska, D. 2017-06-04T18:57:23Z 2017-06-04T18:57:23Z 2012 Period changes of the sample of eclipsing binaries with active chromospheres / D. Jableka, S. Zola, B. Zakrzewski, T. Szymanski, A. Kuzmicz, S.N. de Villiers, M. Zejda, D. Koziel-Wierzbowska // Advances in Astronomy and Space Physics. — 2012. — Т. 2., вип. 2. — С. 128-131. — Бібліогр.: 16 назв. — англ. 2227-1481 https://nasplib.isofts.kiev.ua/handle/123456789/119181 In this work we present results derived from analysis of the O-C behaviour of ten eclipsing binary systems: AR Lac, CG Cyg, HP Aur, MM Her, RS CVn, RT And, SV Cam, V471 Tau, WW Dra and CF Tuc. It was proved on the basis of moments of minima compiled from the literature and new ones determined from recent observations, that these binaries show long term (19-91 years) modulations of their orbital periods, clearly visible in their OC diagrams. Two possible explanations for this effect are considered: (1) the light-travel time effect due to the presence of a third body orbiting the eclipsing systems; (2) the Applegate mechanism predicting period modulation by changes in the distribution of angular momentum as a star goes through its activity cycles. It was found that in the case of four systems the existence of a third star, orbiting the binary, is a more plausible explanation of observations. en Головна астрономічна обсерваторія НАН України Advances in Astronomy and Space Physics Period changes of the sample of eclipsing binaries with active chromospheres Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Period changes of the sample of eclipsing binaries with active chromospheres |
| spellingShingle |
Period changes of the sample of eclipsing binaries with active chromospheres Jableka, D. Zola, S. Zakrzewski, B. Szymanski, T. Kuzmicz, A. de Villiers, S.N. Zejda, M. Koziel-Wierzbowska, D. |
| title_short |
Period changes of the sample of eclipsing binaries with active chromospheres |
| title_full |
Period changes of the sample of eclipsing binaries with active chromospheres |
| title_fullStr |
Period changes of the sample of eclipsing binaries with active chromospheres |
| title_full_unstemmed |
Period changes of the sample of eclipsing binaries with active chromospheres |
| title_sort |
period changes of the sample of eclipsing binaries with active chromospheres |
| author |
Jableka, D. Zola, S. Zakrzewski, B. Szymanski, T. Kuzmicz, A. de Villiers, S.N. Zejda, M. Koziel-Wierzbowska, D. |
| author_facet |
Jableka, D. Zola, S. Zakrzewski, B. Szymanski, T. Kuzmicz, A. de Villiers, S.N. Zejda, M. Koziel-Wierzbowska, D. |
| publishDate |
2012 |
| language |
English |
| container_title |
Advances in Astronomy and Space Physics |
| publisher |
Головна астрономічна обсерваторія НАН України |
| format |
Article |
| description |
In this work we present results derived from analysis of the O-C behaviour of ten eclipsing binary systems:
AR Lac, CG Cyg, HP Aur, MM Her, RS CVn, RT And, SV Cam, V471 Tau, WW Dra and CF Tuc. It was proved on
the basis of moments of minima compiled from the literature and new ones determined from recent observations,
that these binaries show long term (19-91 years) modulations of their orbital periods, clearly visible in their OC diagrams. Two possible explanations for this effect are considered: (1) the light-travel time effect due to the presence of a third body orbiting the eclipsing systems; (2) the Applegate mechanism predicting period modulation by changes in the distribution of angular momentum as a star goes through its activity cycles. It was found that in the case of four systems the existence of a third star, orbiting the binary, is a more plausible explanation of observations.
|
| issn |
2227-1481 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/119181 |
| citation_txt |
Period changes of the sample of eclipsing binaries with active chromospheres / D. Jableka, S. Zola, B. Zakrzewski, T. Szymanski, A. Kuzmicz, S.N. de Villiers, M. Zejda, D. Koziel-Wierzbowska // Advances in Astronomy and Space Physics. — 2012. — Т. 2., вип. 2. — С. 128-131. — Бібліогр.: 16 назв. — англ. |
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2025-12-07T15:25:57Z |
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2025-12-07T15:25:57Z |
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