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The first photometric investigation of the neglected short period binary DY CVn
Qu ZhiNing1; Jiang LinQiao1,2; Liu Jie1; Hu YanFei1; Yuan YuQuan1
Source PublicationNEW ASTRONOMY
2017-07-01
Volume54Pages:103-108
DOI10.1016/j.newast.2017.01.010
Indexed BySCI
KeywordStars: Binaries: Close Stars: Binaries : Eclipsing Stars: Individual (Dy Cvn)
Abstract

We present new photometric observations of the short period binary DY CVn. By using the Wilson-Devinney code of 2013 version, we found that DY CVn is a shallow contact binary (f = 13.2%) with a high mass ratio of q = 1.251. It is a W-subtype contact system where the more massive component is about 113 K cooler than the less massive one. From 44 available CCD times of light minimum collected from the references and 3 new ones in the present paper, the variation of the orbital period is studied. It is found that the 0 - C diagram shows a cyclic variation, and the most plausible explanation for this cyclic change is the light-travel time effect via a third body, since an outer third companion could play an important role for its formation by removing angular momentum from the central binary. (C) 2017 Elsevier B.V. All rights reserved.

Funding ProjectChinese Natural Science Foundation[11503082] ; Chinese Natural Science Foundation[11547162] ; National Natural Science Foundation of China (NSFC)[U1631108] ; Chinese Academy of Sciences (CAS)[U1631108] ; Sichuan University of Science and Engineering[2015RC40] ; Sichuan University of Science and Engineering[2015RC41] ; Sichuan University of Science and Engineering[2015RC42] ; Sichuan University of Science and Engineering[2015RC43] ; Sichuan University of Science and Engineering[2015RC44]
Funding OrganizationChinese Natural Science Foundation[11503082, 11547162] ; National Natural Science Foundation of China (NSFC)[U1631108] ; Chinese Academy of Sciences (CAS)[U1631108] ; Sichuan University of Science and Engineering[2015RC40, 2015RC41, 2015RC42, 2015RC43, 2015RC44]
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
WOS IDWOS:000397369300014
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordECLIPSING BINARY ; CONTACT BINARY ; OVERCONTACT BINARIES ; ORBITAL PERIOD ; LIGHT CURVES ; HS 0705+6700 ; MASS-RATIO ; STAR LIGHT
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/10011
Collection中国科学院天体结构与演化重点实验室
Corresponding AuthorJiang LinQiao
Affiliation1.School of Physics and Electronic Engineering, Sichuan University of Science & Engineering, Zigong, 643000, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, China
Recommended Citation
GB/T 7714
Qu ZhiNing,Jiang LinQiao,Liu Jie,et al. The first photometric investigation of the neglected short period binary DY CVn[J]. NEW ASTRONOMY,2017,54:103-108.
APA Qu ZhiNing,Jiang LinQiao,Liu Jie,Hu YanFei,&Yuan YuQuan.(2017).The first photometric investigation of the neglected short period binary DY CVn.NEW ASTRONOMY,54,103-108.
MLA Qu ZhiNing,et al."The first photometric investigation of the neglected short period binary DY CVn".NEW ASTRONOMY 54(2017):103-108.
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