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Is V899 Herculis an unsolved quadruple system containing double close binary stars?
Qian SB(钱声帮)1,2; Liao WP(廖文萍)1,2; He JJ(何家佳)1,2; Yuan JZ(袁金照)1,2; Zhu LY(朱俐颖)1,2
Source PublicationNEW ASTRONOMY
2006-10
Volume12Issue:1Pages:33-37
DOI10.1016/j.newast.2006.05.001
Contribution Rank第1完成单位
Indexed BySCI ; EI
KeywordStars : Binaries : Close Stars : Binaries : Eclipsing Stars : Individuals V899 Herculis Stars : Multiple
Abstract

Orbital period variation of the W UMa-type eclipsing binary, V899 Herculis, discovered by the Hipparcos satellite was investigated based on all available photoelectric and CCD times of light minimum. It is discovered that the orbital period of the binary shows a cyclic change with an amplitude of 0.0117 days. The cyclic period change can be explained as the light-travel time orbit of a tertiary component in the system, which is in agreement with the spectroscopic result obtained by Lu et al. [Lu, W., Rucinski, S.M., Ogloza, W., 2001. AJ 122, 402] who found that the system, of which V899 Herculis is a fainter component (13), is a triple, even quadruple and with the photometric result obtained by Ozdemir et al. [Ozdemir, S., Demircan, O., Erdem, A., Cicek, C., Bulut, I., Soydugan, E., Soydugan, F., 2002. A&A 387, 240] who reported a large amount of third light (L-3 similar to 0.68) of the system. The third body (A) rotates around the eclipsing pair in a period of 3.7 years. Lu et al. [Lu, W., Rucinski, S.M., Ogloza, W., 2001. AJ 122, 402] reported that the tertiary component is F5-type main-sequence star. However, the present analysis shows that the mass of the third component is no less than 2.8 M circle dot, which is larger than the mass of an F5-type main-sequence star suggesting that the tertiary component may be a non-eclipsing close binary. Therefore, the system may be a possible unsolved quadruple system containing double close binary stars. It is a good astrophysical laboratory to study the formation and evolution of binary and multiple system. The timescale for the formation of the G-type overcontact binary (V899 Herculis) via AML should be shorter than the main-sequence time of an F5-type star. (c) 2006 Elsevier B.V. All rights reserved.

Language英语
Subject Area天文学 ; 恒星与银河系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherELSEVIER SCIENCE BV
Publication PlacePO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
ISSN1384-1076
URL查看原文
Archive Date2006-09-19
WOS IDWOS:000241126000005
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordEvolution ; Origin
EI Accession Number20063710113942
EI KeywordsAstronomy
EI Classification Number801chemistry - 741.3optical Devices And Systems - 714.2semiconductor Devices And Integrated Circuits - 701.1electricity: Basic Concepts And Phenomena - 657.2extraterrestrial Physics And Stellar Phenomena - 655.2satellites - 654.1rockets And Missiles
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5787
Collection双星与变星研究组
Corresponding AuthorQian SB(钱声帮)
Affiliation1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, PR China
2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), 100012 Beijing, PR China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Qian SB,Liao WP,He JJ,et al. Is V899 Herculis an unsolved quadruple system containing double close binary stars?[J]. NEW ASTRONOMY,2006,12(1):33-37.
APA Qian SB,Liao WP,He JJ,Yuan JZ,&Zhu LY.(2006).Is V899 Herculis an unsolved quadruple system containing double close binary stars?.NEW ASTRONOMY,12(1),33-37.
MLA Qian SB,et al."Is V899 Herculis an unsolved quadruple system containing double close binary stars?".NEW ASTRONOMY 12.1(2006):33-37.
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