Magnetic activity and orbital periods of five low-mass eclipsing binaries
Zhang, Li-Yun1,2; Pi, Qing-feng1,2; Yang, Yuan-Gui3; hang, LY (reprint author), Guizhou Univ, Coll Sci, Dept Phys, Guiyang 550025, Peoples R China.
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2014-08-11
卷号442期号:3页码:2620-2636
DOI10.1093/mnras/stu964
收录类别SCI
关键词Binaries: Eclipsing Stars: Individual: Nsvs 02502726 Stars: Individual: Nsvs 06550671 Stars: Individual: Nsvs 11868841 Stars: Individual: Nsvs 07453183 Stars: Individual: Nsvs 10653195
摘要We report 15 new VRI light curves of five low-mass eclipsing binaries (NSVS 02502726, NSVS 07453183, NSVS 11868841, NSVS 06550671 and NSVS 10653195) that were observed between 2010 and 2012. We analysed our new data together with three published spectroscopic observations and seven published light curves using a modified version of the Wilson-Devinney program. Orbital solutions of the five low-mass eclipsing binaries were revised and new star-spot parameters were obtained. We found that spot locations on the five low-mass eclipsing binaries changed over several years. However, the star-spots for NSVS 07453183 and NSVS 06550671 were stable for several months. More interestingly, for NSVS 02502726, the spots within a star-spot longitude region of 180A degrees-360A degrees indicated a magnetic activity cycle of 5.9(+/- 0.2) yr. Moreover, we detected the first flare-like event on NSVS 07453183 at phase 0.39. The observations of the chromospheric activity indicators (H beta and H gamma lines) revealed that NSVS 10653195 and NSVS 06550671 were active. For NSVS 02502726, we found a weak continuous secular decrease at a smaller rate of dp/dt = -2.1(0.8) x 10(-7) d yr(-1) than the previous result. For NSVS 07453183, the O-C times appeared to increase at cycle 6000, and this was followed by a decrease at cycle 6500.
项目资助者GuiZhou natural Science Foundation(20092263) ; Joint Fund of Astronomy of the National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS)(10978010,11263001,U1231102) ; Open Project Program of the Key Laboratory of Optical Astronomy ; NAOC ; CAS
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0035-8711
URL查看原文
WOS记录号WOS:000339924300055
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]RS-CANUM-VENATICORUM ; TERM STARSPOT EVOLUTION ; ACTIVITY CYCLE ; CHROMOSPHERIC ACTIVITY ; ABSOLUTE DIMENSIONS ; RT ANDROMEDAE ; YY GEMINORUM ; H-ALPHA ; DIFFERENTIAL ROTATION ; CIRCUMSTELLAR MATTER
引用统计
被引频次:12[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/114a53/9438
专题中国科学院天体结构与演化重点实验室
通讯作者hang, LY (reprint author), Guizhou Univ, Coll Sci, Dept Phys, Guiyang 550025, Peoples R China.
作者单位1.Department of Physics, College of Science, Guizhou University and NAOC-GZU-Sponsored Center for Astronomy, Guizhou University, Guiyang 550025, People's Republic of China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, People's Republic of China
3.School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, Anhui Province, People's Republic of China
推荐引用方式
GB/T 7714
Zhang, Li-Yun,Pi, Qing-feng,Yang, Yuan-Gui,et al. Magnetic activity and orbital periods of five low-mass eclipsing binaries[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,442(3):2620-2636.
APA Zhang, Li-Yun,Pi, Qing-feng,Yang, Yuan-Gui,&hang, LY .(2014).Magnetic activity and orbital periods of five low-mass eclipsing binaries.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,442(3),2620-2636.
MLA Zhang, Li-Yun,et al."Magnetic activity and orbital periods of five low-mass eclipsing binaries".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 442.3(2014):2620-2636.
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
Magnetic activity an(2024KB)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
[Zhang, Li-Yun]的文章
[Pi, Qing-feng]的文章
[Yang, Yuan-Gui]的文章
百度学术
百度学术中相似的文章
[Zhang, Li-Yun]的文章
[Pi, Qing-feng]的文章
[Yang, Yuan-Gui]的文章
必应学术
必应学术中相似的文章
[Zhang, Li-Yun]的文章
[Pi, Qing-feng]的文章
[Yang, Yuan-Gui]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Magnetic activity and orbital periods of five low-mass eclipsing binaries.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。