YNAO OpenIR  > 双星与变星研究组
The first CCD photometric study of the neglected WUMa-type binary PP Lacertae
Qian SB(钱声帮)1; Zhu LY(朱俐颖)1; Boonruksar, S2; Qian, SB (reprint author), Chinese Acad Sci, United Lab Opt Astron, Beijing 100012, Peoples R China.
Source PublicationNEW ASTRONOMY
2005-10
Volume11Issue:1Pages:52-58
DOI10.1016/j.newast.2005.06.003
Contribution Rank第1完成单位
Indexed BySCI ; EI
KeywordStars : Binaries : Close Stars : Binaries : Eclipsing Stars : Individuals : Pp Lacertae
AbstractThe first complete charge couple device (CCD) photometric light curve in V band of the neglected W UMa-type binary star, PP Lacertae, is presented. It is shown that the system is a complete eclipsing binary and belongs to W type according to Binnendijk's classification where the occultation minimum is much deep than the transit one. The light curve is symmetric and no day-to-day variation of the light curve was found. These properties enable good chance to determine photometric parameters of the binary system. Photometric solutions based on the complete light curve were derived with the 2003 version of the W-D code. It is suggested that PP Lacertae is a W-type overcontact binary system with a mass ratio of q = 2.3000(+/- 0.0044) and a median degree of overcontact off = 23.9%(+/- 1.1%). The temperature of the less massive component is about 260 K higher than that of the more massive one. Our four CCD times of light minimum, including others collected from the literature, have been used for the period study. It is found that the period showed a small-amplitude cyclic oscillation with a period of 19.7 years and an amplitude of 0.(d)0058, which can be explained as the light-time effect of an unseen third body. (C) 2005 Elsevier B.V. All rights reserved.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN1384-1076
URL查看原文
Archive Date2005-10-25
WOS IDWOS:000232917200005
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordTHERMAL RELAXATION OSCILLATION ; ORBITAL PERIOD MODULATION ; AO-CAMELOPARDALIS ; CONTACT BINARIES ; CLOSE BINARIES ; LIGHT CURVES ; STARS ; SYSTEMS ; LEONIS
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5776
Collection双星与变星研究组
Corresponding AuthorQian, SB (reprint author), Chinese Acad Sci, United Lab Opt Astron, Beijing 100012, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Yunnan Province 650011, Kunming, PR China
2.Astronomy Research Unit, Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailan
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Qian SB,Zhu LY,Boonruksar, S,et al. The first CCD photometric study of the neglected WUMa-type binary PP Lacertae[J]. NEW ASTRONOMY,2005,11(1):52-58.
APA Qian SB,Zhu LY,Boonruksar, S,&Qian, SB .(2005).The first CCD photometric study of the neglected WUMa-type binary PP Lacertae.NEW ASTRONOMY,11(1),52-58.
MLA Qian SB,et al."The first CCD photometric study of the neglected WUMa-type binary PP Lacertae".NEW ASTRONOMY 11.1(2005):52-58.
Files in This Item:
File Name/Size DocType Version Access License
The first CCD photom(440KB)期刊论文作者接受稿开放获取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
[Qian SB(钱声帮)]'s Articles
[Zhu LY(朱俐颖)]'s Articles
[Boonruksar, S]'s Articles
Baidu academic
Similar articles in Baidu academic
[Qian SB(钱声帮)]'s Articles
[Zhu LY(朱俐颖)]'s Articles
[Boonruksar, S]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Qian SB(钱声帮)]'s Articles
[Zhu LY(朱俐颖)]'s Articles
[Boonruksar, S]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: The first CCD photometric study of the neglected W UMa-type binary PP Lacertae.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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