YNAO OpenIR  > 双星与变星研究组
Multiple color light curves and period changes investigation of the contact binary HV Aqr
Li K(李凯)1,2,3; Qian SB(钱声帮)1,2,3; Li, K (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊NEW ASTRONOMY
2013-07
卷号21页码:46-49
DOI10.1016/j.newast.2012.11.003
产权排序第1完成单位
收录类别SCI
关键词Stars: Binaries: Close Stars: Binaries: Eclipsing Stars: Individuals: Hv Aqr
摘要New V, R and I light curves of the short period binary system, HV Aqr, are presented. Photometric solutions were derived using the Wilson-Devinney code. Our new determined light curves do not show O'Connell effect. The nearly symmetry and complete eclipses of the light curves of HV Aqr enable us to determine high-precision photometric parameters of the binary system. The new solutions suggest that HV Aqr is a low mass ratio (q = 0.1455) deep contact binary with a contact degree off = 55.9%. Based on all available times of light minimum, we analyzed the long-term period changes of HV Aqr. A secular decrease rate of dP/dt = 8.84(+/- 0.18) x 10(-8) days yr(-1) was determined. The continuous period decrease can be explained by the mass transfer from the primary component to the secondary and angular momentum loss via magnetic stellar wind. A conservative mass transfer rate of dM(1)/dt = 1.81 x 10(-8)M(circle dot) yr(-1) and angular momentum loss rate at dJ/dt = 5.96 x 10(48) g cm(2) s(-1) yr(-1) were derived. As the orbital period decreases, the contact degree of HV Aqr will become deeper and finally it will evolve into a single rapid-rotation star. (C) 2012 Elsevier B.V. All rights reserved.
项目资助者Chinese Natural Science Foundation [11133007, 10973037, 10903026, 11103074] ; West Light Foundation of the Chinese Academy of Sciences
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN1384-1076
URL查看原文
归档日期2013-01-11
WOS记录号WOS:000314558400008
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]URSAE MAJORIS SYSTEMS ; STARS
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5886
专题双星与变星研究组
中国科学院天体结构与演化重点实验室
通讯作者Li, K (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, PR China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences. Graduate School of the CAS, 100049 Beijing, PR China
3.Graduate School of the CAS, 100049 Beijing, PR China
推荐引用方式
GB/T 7714
Li K,Qian SB,Li, K . Multiple color light curves and period changes investigation of the contact binary HV Aqr[J]. NEW ASTRONOMY,2013,21:46-49.
APA Li K,Qian SB,&Li, K .(2013).Multiple color light curves and period changes investigation of the contact binary HV Aqr.NEW ASTRONOMY,21,46-49.
MLA Li K,et al."Multiple color light curves and period changes investigation of the contact binary HV Aqr".NEW ASTRONOMY 21(2013):46-49.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Multiple color light(363KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Li K(李凯)]的文章
[Qian SB(钱声帮)]的文章
[Li, K (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.]的文章
百度学术
百度学术中相似的文章
[Li K(李凯)]的文章
[Qian SB(钱声帮)]的文章
[Li, K (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.]的文章
必应学术
必应学术中相似的文章
[Li K(李凯)]的文章
[Qian SB(钱声帮)]的文章
[Li, K (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Multiple color light curves and period changes investigation of the contact binary HV Aqr.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。