Twenty-three new Heartbeat Star systems discovered based on TESS data

doi:10.1093/mnras/stae2057

YNAO OpenIR > 双星与变星研究组

	Twenty-three new Heartbeat Star systems discovered based on TESS data
	Li MY(李敏榆)1 ; Qian, Sheng-Bang 2,3; Zhou, Ai-Ying 4; Zhu LY(朱俐颖)1,5 ; Liao WP(廖文萍)1,5 ; Zhao EG(赵二刚)1 ; Shi XD(施相东)1 ; Li FX(李福兴)1 ; Sun, Qi-Bin 2,3
发表期刊	Monthly Notices of the Royal Astronomical Society
	2024-10-01
卷号	534 期号:1 页码:281-289
DOI	10.1093/mnras/stae2057
产权排序	第1完成单位
收录类别	SCI ; EI
关键词	inaries: general stars: variables: general
摘要	Heartbeat stars (HBSs) are ideal astrophysical laboratories to study the formation and evolution of binary stars in eccentric orbits and the internal structural changes of their components under strong tidal action. We discover 23 new HBSs based on TESS photometric data. The orbital parameters, including orbital period, eccentricity, orbital inclination, argument of periastron, and epoch of periastron passage of these HBSs, are derived by using a corrected version of Kumar et al.'s model based on the Markov Chain Monte Carlo (MCMC) method. The preliminary results show that these HBSs have orbital periods in the range from 2.7 to 20 d and eccentricities in the range from 0.08 to 0.70. The eccentricity-period relation of these objects shows a positive correlation between eccentricity and period and also shows the existence of orbital circularization. The Hertzsprung-Russell diagram shows that the HBSs are not all located in a particular area. The distribution of the derived parameters suggests a selection bias within the TESS survey towards HBSs with shorter periods. These objects are a very useful source to study the structure and evolution of eccentricity orbit binaries and to extend the TESS HBS catalog. © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
资助项目	N/A
项目资助者	N/A
语种	英语
学科领域	天文学 ; 恒星与银河系
文章类型	Article
出版者	OXFORD UNIV PRESS
出版地	GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN	0035-8711
URL	查看原文
WOS记录号	WOS:001314597400001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	TIDALLY EXCITED OSCILLATIONS ; CONVECTIVE BOUNDARIES ; EXTREME AMPLITUDE ; VARIABLE-STARS ; BINARY-SYSTEMS ; MODULES ; PULSATIONS ; ROTATION ; DELTA
EI入藏号	20243917091672
EI主题词	Markov chains
EI分类号	1202.1 - 1302.1.2 - 1303
引用统计
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/27623
专题	双星与变星研究组
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China; 2.Department of Astronomy, School of Physics and Astronomy, Yunnan University, Kunming, 650091, China; 3.Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming, 650091, China; 4.National Astronomical Observatories, Chinese Academy of Sciences, A20 Datun Road, Chaoyang District, Beijing, 100101, China; 5.University of Chinese Academy of Sciences, No.1 Yanqihu East Road, Huairou District, Beijing, 101408, China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Li MY,Qian, Sheng-Bang,Zhou, Ai-Ying,et al. Twenty-three new Heartbeat Star systems discovered based on TESS data[J]. Monthly Notices of the Royal Astronomical Society,2024,534(1):281-289.
APA	李敏榆.,Qian, Sheng-Bang.,Zhou, Ai-Ying.,朱俐颖.,廖文萍.,...&Sun, Qi-Bin.(2024).Twenty-three new Heartbeat Star systems discovered based on TESS data.Monthly Notices of the Royal Astronomical Society,534(1),281-289.
MLA	李敏榆,et al."Twenty-three new Heartbeat Star systems discovered based on TESS data".Monthly Notices of the Royal Astronomical Society 534.1(2024):281-289.

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