YNAO OpenIR  > 双星与变星研究组
Multi-color photometric investigation of the totally eclipsing binary NO Camelopardalis
Zhou X(周肖)1,2,3; Qian SB(钱声帮)1,2,3,4; Zhang B(张斌)1,2,3,4
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2017-04-01
Volume69Issue:2
DOI10.1093/pasj/psx010
Contribution Rank第1完成单位
Indexed BySCI
KeywordBinaries: Close Binaries: Eclipsing Stars: Individual (No Camelopardalis)
Abstract

Multi-color photometric light curves of NO Camelopardalis in V, R-C, and I-C bands are obtained and analyzed simultaneously using the Wilson-Devinney program. The solutions suggest that NO Cam is an A-subtype overcontact binary with a mass ratio of q = 0.439 and a contact degree of f = 55.5%. The small temperature difference (Delta T = 44 K) between its two components indicates that the system is under thermal contact. The high orbital inclination (i = 84.degrees 5) strengthens our confidence in the parameters determined from the light curves. All available times of minimum light are collected and period variations are analyzed for the first time. The O-C curve reveals that its period is increasing continuously at a rate of dP/dt = + 1.46 x 10(-9), which can be explained by mass transfer from the less massive component to the more massive one. After the upward parabolic variation is subtracted, the residuals suggest that there may be a cyclic variation with a period of 2.23 yr and an amplitude of A(3) = 0.00153 d, which may due to the light-travel-time effect arising from the gravitational influence of a close-in tertiary component. The close-in companion reveals that early dynamic interaction among a triple system may have played a very important role in the formation of the WUMa-type binaries.

Funding ProjectChinese Natural Science Foundation[11133007] ; Chinese Natural Science Foundation[11325315] ; Chinese Natural Science Foundation[11203066] ; Chinese Natural Science Foundation[11403095] ; Strategic Priority Research Program "The Emergence of Cosmological Structure" of the Chinese Academy of Sciences[XDB09010202] ; Science Foundation of Yunnan Province[2012HC011] ; Science Foundation of Yunnan Province[2014FB187]
Funding OrganizationChinese Natural Science Foundation[11133007, 11325315, 11203066, 11403095] ; Strategic Priority Research Program "The Emergence of Cosmological Structure" of the Chinese Academy of Sciences[XDB09010202] ; Science Foundation of Yunnan Province[2012HC011, 2014FB187]
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
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0004-6264
URL查看原文
Archive Date2017-05-18
WOS IDWOS:000401118500023
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCONTACT BINARY ; STELLAR COMPANION ; SHALLOW CONTACT ; LIGHT CURVES ; STARS ; SYSTEM ; DEEP
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/10069
Collection双星与变星研究组
中国科学院天体结构与演化重点实验室
Corresponding AuthorZhou X(周肖)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, P.R. China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, P.R. China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, P.R. China
4.Graduate University of the Chinese Academy of Sciences, Yuquan Road 19, Sijingshang Block, 100049 Beijing, P.R. China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhou X,Qian SB,Zhang B. Multi-color photometric investigation of the totally eclipsing binary NO Camelopardalis[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2017,69(2).
APA Zhou X,Qian SB,&Zhang B.(2017).Multi-color photometric investigation of the totally eclipsing binary NO Camelopardalis.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,69(2).
MLA Zhou X,et al."Multi-color photometric investigation of the totally eclipsing binary NO Camelopardalis".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 69.2(2017).
Files in This Item:
File Name/Size DocType Version Access License
Multi-color photomet(1707KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhou X(周肖)]'s Articles
[Qian SB(钱声帮)]'s Articles
[Zhang B(张斌)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhou X(周肖)]'s Articles
[Qian SB(钱声帮)]'s Articles
[Zhang B(张斌)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhou X(周肖)]'s Articles
[Qian SB(钱声帮)]'s Articles
[Zhang B(张斌)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Multi-color photometric investigation of the totally eclipsing binary NO Camelopardalis.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.