Modeling and Orbital Parameters of Kepler Heartbeat Stars
文献类型:期刊论文
作者 | Li MY(李敏榆)1,2,3,4; Qian SB(钱声帮)1,2,3,4; Zhu LY(朱俐颖)1,2,3,4; Liao WP(廖文萍)1,2,3,4; Zhao EG(赵二刚)2,3,4; Shi XD(施相东)2,3,4; Sun QB(孙起斌)1,2,3,4 |
刊名 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES |
出版日期 | 2023-06-01 |
卷号 | 266期号:2 |
ISSN号 | 0067-0049 |
DOI | 10.3847/1538-4365/acca13 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | Heartbeat stars (HBSs) are astrophysical laboratories for studying binaries with eccentric orbits. A catalog of 173 Kepler HBSs was reported by Kirk et al., and we have modeled 153 of them by using a corrected version of Kumar et al.'s model based on the Markov Chain Monte Carlo method. The orbital parameters, including orbital period, eccentricity, orbital inclination, the argument of periastron, and epoch of the periastron passage of these HBSs, have been determined and are presented. Orbital parameters of more than 100 systems are obtained for the first time. After comparing the parameters of 38 overlapping systems with previous works, it is shown that the orbital parameters of HBSs can be reliably derived using this method. These samples can also be valuable targets for future studies of the structures and evolution of HBSs. The eccentricity-period (e-P) relation also reveals the existence of orbital circularization in HBSs. We then propose an empirical equation for the relationship between the upper limit of eccentricity and the orbital period in systems with orbital periods less than 10 days based on the e-P relation. In addition, it is possible that seven systems in the catalog with eccentricity less than 0.02 should be excluded from the HBS candidates. |
学科主题 | 天文学 ; 恒星与银河系 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
WOS关键词 | TIDALLY EXCITED OSCILLATIONS ; ECLIPSING BINARIES ; EXTREME AMPLITUDE ; PULSATIONS ; SYSTEM ; CATALOG |
资助项目 | National Natural Science Foundation of China[11933008] ; NASA Science Mission directorate |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:000998116800001 |
资助机构 | National Natural Science Foundation of China[11933008] ; NASA Science Mission directorate |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26064] |
专题 | 云南天文台_双星与变星研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
通讯作者 | Qian SB(钱声帮) |
作者单位 | 1.University of Chinese Academy of Sciences, No. 1 Yanqihu East Road, Huairou District, Beijing 101408, People's Republic of China 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; qsb@ynao.ac.cn; 3.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China; |
推荐引用方式 GB/T 7714 | Li MY,Qian SB,Zhu LY,et al. Modeling and Orbital Parameters of Kepler Heartbeat Stars[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2023,266(2). |
APA | Li MY.,Qian SB.,Zhu LY.,Liao WP.,Zhao EG.,...&Sun QB.(2023).Modeling and Orbital Parameters of Kepler Heartbeat Stars.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,266(2). |
MLA | Li MY,et al."Modeling and Orbital Parameters of Kepler Heartbeat Stars".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 266.2(2023). |
入库方式: OAI收割
来源:云南天文台
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