Detection of Tidally Excited Oscillations in Kepler Heartbeat Stars

doi:10.3847/1538-4357/ad18c1

	Detection of Tidally Excited Oscillations in Kepler Heartbeat Stars
	Li MY(李敏榆)1,2,3,4; Qian SB(钱声帮)1,2,3,4; Zhu LY(朱俐颖)1,2,4; Liao WP(廖文萍)1,2,4; Zhao EG(赵二刚)1,2,4; Shi XD(施相东)1,2,4; Li FX(李福兴)1,2,4; Sun QB(孙起斌)1,2,4; Li P(李平)1,2,4
刊名	ASTROPHYSICAL JOURNAL
	2024-02-01
卷号	962 期号:1
ISSN号	0004-637X
DOI	10.3847/1538-4357/ad18c1
产权排序	第1完成单位
文献子类	Article
英文摘要	Heartbeat stars (HBSs) with tidally excited oscillations (TEOs) are ideal laboratories for studying the effect of equilibrium and dynamical tides. However, studies of TEOs in Kepler HBSs are rare due to the need for better modeling of the equilibrium tide in light curves. We revisit the HBSs in our previous work and study the TEOs in these HBSs based on the derived orbital parameters that could express the equilibrium tide. We also compile a set of analytic procedures to examine the harmonic and anharmonic TEOs in their Fourier spectra. The TEOs of 21 HBSs have been newly analyzed and presented. Twelve of these HBSs show prominent TEOs (signal-to-noise ratio of the harmonics S/N >= 10). The relation between the orbital eccentricities and the harmonic number of the TEOs shows a positive correlation. The relation between the orbital periods and the harmonic number also shows a positive correlation. Furthermore, the distribution of HBSs with TEOs in the Hertzsprung-Russell diagram shows that TEOs are more visible in hot stars with surface effective temperatures T greater than or similar to 6500 K. These samples may also be valuable targets for future studies of the effect of tidal action in eccentric orbits.
学科主题	天文学
URL标识	查看原文
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
资助项目	National Natural Science Foundation of China[11933008]; National Natural Science Foundation of China[12103084]; Basic research project of Yunnan Province[202301AT070352]; Yunnan Revitalization Talent Support Program; NASA Science Mission directorate
WOS关键词	VARIABLE-STARS ; CONVECTIVE BOUNDARIES ; EXTREME AMPLITUDE ; OGLE COLLECTION ; BINARY-SYSTEM ; MODULES ; PULSATIONS ; ROTATION ; TIME ; TELESCOPE
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001157086800001
资助机构	National Natural Science Foundation of China[11933008, 12103084] ; Basic research project of Yunnan Province[202301AT070352] ; Yunnan Revitalization Talent Support Program ; NASA Science Mission directorate
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26467]
专题	云南天文台_双星与变星研究组
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.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China 3.Department of Astronomy, Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, People's Republic of China; 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; qsb@ynao.ac.cn, zhuly@ynao.ac.cn;
推荐引用方式 GB/T 7714	Li MY,Qian SB,Zhu LY,et al. Detection of Tidally Excited Oscillations in Kepler Heartbeat Stars[J]. ASTROPHYSICAL JOURNAL,2024,962(1).
APA	李敏榆.,钱声帮.,朱俐颖.,廖文萍.,赵二刚.,...&李平.(2024).Detection of Tidally Excited Oscillations in Kepler Heartbeat Stars.ASTROPHYSICAL JOURNAL,962(1).
MLA	李敏榆,et al."Detection of Tidally Excited Oscillations in Kepler Heartbeat Stars".ASTROPHYSICAL JOURNAL 962.1(2024).