The frequency separations of stellar p-modes

	The frequency separations of stellar p-modes
	Yang WM(杨伍明)1,2,3 ; Bi SL(毕少兰)1,4
刊名	ASTRONOMY & ASTROPHYSICS
	2007-09
卷号	472 期号:2 页码:571-576
关键词	star : oscillations stars : interiors
ISSN号	0004-6361
通讯作者	Yang, WM (reprint author), Henan Polytech Univ, Dept Chem & Phys, Jiaozuo 454003, Peoples R China.
产权排序	第二完成单位
英文摘要	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.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	ALPHA-CENTAURI-A ; SOLAR-TYPE STARS ; SEMICLASSICAL APPROXIMATION ; OSCILLATION FREQUENCIES ; ACOUSTIC-OSCILLATIONS ; ELEMENT DIFFUSION ; ASTEROSEISMOLOGY ; SIGNATURES ; INTERIOR ; EQUATION
收录类别	SCI ; EI
原文出处	http://www.aanda.org/articles/aa/abs/2007/35/aa7082-07/aa7082-07.html
语种	英语
WOS记录号	WOS:000249758500029
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5183]
专题	云南天文台_恒星物理研究组
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
推荐引用方式 GB/T 7714	Yang WM,Bi SL. The frequency separations of stellar p-modes[J]. ASTRONOMY & ASTROPHYSICS,2007,472(2):571-576.
APA	Yang WM,&Bi SL.(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.