The frequency separations of stellar p-modes

doi:10.1051/0004-6361:20077082

YNAO OpenIR > 恒星物理研究组

	The frequency separations of stellar p-modes
	Yang WM(杨伍明)1,2,3 ; Bi SL(毕少兰)1,4; Yang, WM (reprint author), Henan Polytech Univ, Dept Chem & Phys, Jiaozuo 454003, Peoples R China.
发表期刊	ASTRONOMY & ASTROPHYSICS
	2007-09
卷号	472 期号:2 页码:571-576
DOI	10.1051/0004-6361:20077082
产权排序	第2完成单位
收录类别	SCI ; EI
关键词	Star : Oscillations Stars : Interiors
摘要	Aims. The purpose of this work is to investigate the characteristics of a new frequency separation of stellar p-modes. Methods. Frequency separations are deduced from the asymptotic formula of stellar p-modes. Then, using the theoretical adiabatic frequencies of stellar model, we compute the frequency separations. Results. A new separation sigma(l-1l+ 1)( n), which is similar to the scaled small separation d(ll+ 2)( n)/(2l + 3), is obtained from the asymptotic formula of stellar p-modes. The separations sigma(l-1l+ 1)( n) and d(ll+ 2)( n)/(2l+ 3) have the same order. And like the small separation, sigma(l)-(1l+ 1)( n) is mainly sensitive to the conditions in the stellar core. However, with the decrease in the central hydrogen abundance of stars, the separations sigma(02) and rho(13) deviate more and more from the scaled small separation. This characteristic could be used to extract the information on the central hydrogen abundance of stars.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0004-6361
URL	查看原文
WOS记录号	WOS:000249758500029
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	ALPHA-CENTAURI-A ; SOLAR-TYPE STARS ; SEMICLASSICAL APPROXIMATION ; OSCILLATION FREQUENCIES ; ACOUSTIC-OSCILLATIONS ; ELEMENT DIFFUSION ; ASTEROSEISMOLOGY ; SIGNATURES ; INTERIOR ; EQUATION
引用统计	被引频次：7[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/114a53/5183
专题	恒星物理研究组
通讯作者	Yang, WM (reprint author), Henan Polytech Univ, Dept Chem & Phys, Jiaozuo 454003, Peoples R China.
作者单位	1.Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454003, PR China 2.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, PR China 3.Graduate School of the Chinese Academy of Sciences, Beijing 100039, PR China 4.Department of Astronomy, Beijing Normal University, Beijing 100875, PR 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	Yang WM,Bi SL,Yang, WM . The frequency separations of stellar p-modes[J]. ASTRONOMY & ASTROPHYSICS,2007,472(2):571-576.
APA	Yang WM,Bi SL,&Yang, WM .(2007).The frequency separations of stellar p-modes.ASTRONOMY & ASTROPHYSICS,472(2),571-576.
MLA	Yang WM,et al."The frequency separations of stellar p-modes".ASTRONOMY & ASTROPHYSICS 472.2(2007):571-576.

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