The frequency separations of stellar p-modes | |
Yang WM(杨伍明)1,2,3![]() ![]() | |
刊名 | ASTRONOMY & ASTROPHYSICS
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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. |
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