Asteroseismology of the Pre-main-sequence delta Scuti Pulsator IP Persei

doi:10.3847/1538-4357/aaffdb

YNAO OpenIR > 恒星物理研究组

	Asteroseismology of the Pre-main-sequence delta Scuti Pulsator IP Persei
	Chen XH(陈兴浩)1,2 ; Li Y(李焱)1,2,3,4
发表期刊	ASTROPHYSICAL JOURNAL
	2019-02-20
卷号	872 期号:2 页码:9
DOI	10.3847/1538-4357/aaffdb
产权排序	第1完成单位
收录类别	SCI
关键词	asteroseismology stars: individual (IP Per) stars: rotation stars: variables: delta Scuti
摘要	A grid of theoretical models are computed to fit the nine oscillation modes of IP Per detected earlier from a multi-site ground-based campaign. Fitting results show that there are two sets of theoretical models that could reproduce the observed frequencies more or less equally as well. In view of other available spectroscopic and photometric measurements, our best-fitting stellar parameters for IP Per are u(e) = 91(-3)(+5) km s(-1), Z = 0.009(-0.001)(+0.004), M = 1.64(-0.04)(+0.10) M-circle dot,M- T-eff = 7766(-173)(+348) K, log L/L-circle dot = 1.125(-0.046)(+0.094), log g = 4.041(-0.003)(+0.008) dex, R = 2.022(-0.018)(+0.042) R-circle dot, T-0 = 8711(-35)(+68) s, and age = 7.39(-0.46)(+0.76) Myr. Meanwhile, IP Per is found to be a pre-main-sequence star where the CN cycle has not yet reached the equilibrium state. At present, 14% of C12 have been turned into N14. Based on the best-fitting model, f(6) is identified as a radial mode, f(1) and f(2) as two dipole modes, and f(3), f(4), f(5), f(7), f(8), and f(9) as six quadrupole modes.
资助项目	NSFC of China[11333006] ; NSFC of China[11521303] ; NSFC of China[11803082] ; foundation of Light of West China Program from Chinese Academy of Sciences
项目资助者	NSFC of China[11333006, 11521303, 11803082] ; foundation of Light of West China Program from Chinese Academy of Sciences
语种	英语
学科领域	天文学 ; 恒星与银河系 ; 恒星物理学
文章类型	Article
出版者	IOP PUBLISHING LTD
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	0004-637X
URL	查看原文
WOS记录号	WOS:000459323800009
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	STARS ; EVOLUTION ; MISSION ; LIGHT
引用统计	被引频次：4[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/114a53/19367
专题	恒星物理研究组中国科学院天体结构与演化重点实验室
通讯作者	Chen XH(陈兴浩)
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650216, People's Republic of China 2.Key Laboratory for Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, Kunming 650216, People's Republic of China 3.University of Chinese Academy of Sciences, Beijing 100049, 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
第一作者单位	中国科学院云南天文台
通讯作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Chen XH,Li Y. Asteroseismology of the Pre-main-sequence delta Scuti Pulsator IP Persei[J]. ASTROPHYSICAL JOURNAL,2019,872(2):9.
APA	Chen XH,&Li Y.(2019).Asteroseismology of the Pre-main-sequence delta Scuti Pulsator IP Persei.ASTROPHYSICAL JOURNAL,872(2),9.
MLA	Chen XH,et al."Asteroseismology of the Pre-main-sequence delta Scuti Pulsator IP Persei".ASTROPHYSICAL JOURNAL 872.2(2019):9.

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