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A Possible Explanation of the O'Connell Effect in Close Binary Stars
Liu Qingyao; Yang Yulan
2003
Source PublicationChinese Journal of Astronomy and Astrophysics
ISSN1009-9271
Volume3Issue:2Pages:142
AbstractA theoretical model for explaining the O'Connell effect of close binarystars is given based on the hypothesis that the circumstellar material of a binarysystem is captured by its components. The results inferred from the model suggestthat late-type and/or short-period binaries can easily produce obvious O'Connelleffect and that the occurrence of O'Connell effect has no relation with the typeof binaries. These conclusions are in agreement with the observed results. Theobserved O'Connell effects of six binary systems are examined by the model. Forthree W-subtype W UMa binaries (YY Eri, BX Per and SW Lac), the densitiesof the materials captured by the two components are assumed to be equal, andthe calculated O'Connell effect is found to be almost equal to the observed effect.For three A-subtype W UMa systems (CN And, FG Hya and AU Ser), the twodensities are assumed to be different, and are calculated separately. The calculatedO'Connell effect turns out to agree better with the observed effect than that wasformerly obtained.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/52918
Collection中国科学院国家天文台
Affiliation中国科学院国家天文台
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Liu Qingyao,Yang Yulan. A Possible Explanation of the O'Connell Effect in Close Binary Stars[J]. Chinese Journal of Astronomy and Astrophysics,2003,3(2):142.
APA Liu Qingyao,&Yang Yulan.(2003).A Possible Explanation of the O'Connell Effect in Close Binary Stars.Chinese Journal of Astronomy and Astrophysics,3(2),142.
MLA Liu Qingyao,et al."A Possible Explanation of the O'Connell Effect in Close Binary Stars".Chinese Journal of Astronomy and Astrophysics 3.2(2003):142.
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