YNAO OpenIR  > 丽江天文观测站(南方基地)
The nature of EU Pegasi: An Algol-type binary with a delta Scuti-type component
Yang, Yuangui1; Yuan, Huiyu1; Dai, Haifeng1; Zhang XL(张西亮)2; Yang, Yuangui, Email: yygcn@163.com; Yuan, Huiyu, Email: yuanhy@chnu.edu.cn
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2018-03-01
卷号70期号:2
DOI10.1093/pasj/psx159
产权排序第2完成单位
收录类别SCI
关键词Binaries: Eclipsing Stars: Individuals (Eu Pegasi) Stars: Variables: Delta Scuti
摘要The comprehensive photometry and spectroscopy for the neglected eclipsing binary EU Pegasi are presented. We determine its spectral type to be A3V. With the W-D program, the photometric solution was deduced from the four-color light curves. The results imply that EU Peg is a detached binary with a mass ratio of q = 0.3105(+/- 0.0011), whose components nearly fill their Roche lobes. The low-amplitude pulsation occurs around the secondary eclipse, which may be attributed to the more massive component. Three frequencies are preliminarily explored by the Fourier analysis. The pulsating frequency at f(1) = 34.1 c d(-1) is a p-mode pulsation. The orbital period may be undergoing a secular decrease, superimposed by a cyclic variation. The period decreases at a rate of dP/dt = -7.34 +/- 1.06 d yr(-1), which may be attributed to mass loss from the system due to stellar wind. The cyclic oscillation, with P-mod = 31.0 +/- 1.4 yr and A = 0.0054 +/- 0.0010 d, may be caused by the light-time effect due to the assumed third body. With its evolution, the pulsating binary EU Peg will evolve from the detached configuration to the semi-detached case.
项目资助者Natural Science Foundation of China(11473009, U1231102) ; Natural Science Research Project of Anhui Provincial Department of Education(KJ2017A850)
语种英语
学科领域天文学
文章类型Article
ISSN0004-6264
URL查看原文
WOS记录号WOS:000432287600016
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ORBITAL PERIOD MODULATION ; ECLIPSING BINARIES ; VELOCITY CURVES ; CLOSE BINARIES ; STARS ; PULSATION ; CATALOG ; LIGHT ; TELESCOPE ; SYSTEMS
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/12390
专题丽江天文观测站(南方基地)
通讯作者Yang, Yuangui, Email: yygcn@163.com; Yuan, Huiyu, Email: yuanhy@chnu.edu.cn
作者单位1.Information College/School of Physics and Electronic Information, Huaibei Normal University, Huaibei
2.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming
推荐引用方式
GB/T 7714
Yang, Yuangui,Yuan, Huiyu,Dai, Haifeng,et al. The nature of EU Pegasi: An Algol-type binary with a delta Scuti-type component[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2018,70(2).
APA Yang, Yuangui,Yuan, Huiyu,Dai, Haifeng,Zhang XL,Yang, Yuangui, Email: yygcn@163.com,&Yuan, Huiyu, Email: yuanhy@chnu.edu.cn.(2018).The nature of EU Pegasi: An Algol-type binary with a delta Scuti-type component.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,70(2).
MLA Yang, Yuangui,et al."The nature of EU Pegasi: An Algol-type binary with a delta Scuti-type component".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 70.2(2018).
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
The nature of EU Peg(1219KB)期刊论文出版稿开放获取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
[Yang, Yuangui]的文章
[Yuan, Huiyu]的文章
[Dai, Haifeng]的文章
百度学术
百度学术中相似的文章
[Yang, Yuangui]的文章
[Yuan, Huiyu]的文章
[Dai, Haifeng]的文章
必应学术
必应学术中相似的文章
[Yang, Yuangui]的文章
[Yuan, Huiyu]的文章
[Dai, Haifeng]的文章
相关权益政策
暂无数据
收藏/分享
文件名: The nature of EU Pegasi_ An Algol-type binary with a δ Scuti-type component.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。