Asteroseismic Analysis ofαCen B:Preliminary Tests of Effects of Rotation and Interior Magnetic Field in the Solar-like Star

Asteroseismic Analysis ofαCen B:Preliminary Tests of Effects of Rotation and Interior Magnetic Field in the Solar-like Star

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摘要 Taking into consideration the effects of rotation and interior magnetic field during the lifetime of the star, we reconstruct the model of α Cen B to satisfy the latest nonasteroseismic and asteroseismic observational constraints. We find that the effects can induce a change of about 0.3 μHz in the large frequency spacings and can speed up the star＇s evolution. The model of a Cen B has thereby been improved. Taking into consideration the effects of rotation and interior magnetic field during the lifetime of the star, we reconstruct the model of α Cen B to satisfy the latest nonasteroseismic and asteroseismic observational constraints. We find that the effects can induce a change of about 0.3 μHz in the large frequency spacings and can speed up the star＇s evolution. The model of a Cen B has thereby been improved.

作者 Yan-Ke Tang Shao-Lan Bi Ning Gai Hua-Yin XU

机构地区 National Astronomical Observatories / Yunnan Observatory Department of Astronomy Beijing No rrnal University Graduate School of Chinese Academy of Sciences

出处《Chinese Journal of Astronomy and Astrophysics》 CSCD 2008年第4期421-432,共12页 中国天文和天体物理学报（英文版）

基金 The Ministry of Science and Technology of the People's Republic of China through Grant 2007CB815406 the NSFC through Grants 10173021,10433030,10773003 and 10778601

关键词 STARS oscillations - stars interiors - stars individual （α Cen B） stars oscillations - stars interiors - stars individual （α Cen B）

分类号 P171 [天文地球—天文学]

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Chinese Journal of Astronomy and Astrophysics

2008年第4期

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Asteroseismic Analysis ofαCen B:Preliminary Tests of Effects of Rotation and Interior Magnetic Field in the Solar-like Star

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