弱发射线T Tauri型星的高色散光谱观测

发布时间：2018-02-16 16:18

本文关键词： 恒星主序前恒星丰度恒星活动　出处：《天文学报》2013年02期 　论文类型：期刊论文

【摘要】：应用国家天文台兴隆观测基地2.16 m望远镜及其高色散光谱仪,对6颗弱发射线T Tauri型星(Weak-line T Tauri Stars.简称WTTS)进行了高色散光谱观测,计算了这些弱发射线T Tauri型星的锂元素丰度,讨论了这些弱发射线T Tauri型星锂丰度和恒星自转周期、光变幅度的关系.研究发现:自转较快的弱发射线T Tauri型星锂丰度小于自转较慢的弱发射线T Tauri型星锂丰度;但是这些弱发射线T Tauri型星,其锂丰度与恒星在V波段的光变幅度并没有明显的相关性.
[Abstract]:Using the 2.16m telescope and its high dispersive spectrometer at Xinglong observation Base of the National Observatory, the hyperdispersive spectral observations of six weak emission line T Tauri T Tauri stars. The lithium abundance of these weak emission line T Tauri stars are calculated. The relationship between the lithium abundance of these weak emission lines T Tauri stars and the rotation period of stars and the amplitude of light variation is discussed. It is found that the lithium abundance of the weak emission line T Tauri stars with faster rotation is smaller than that of the weak emission lines T Tauri stars with slower rotation. However, there is no obvious correlation between the lithium abundance of these weak emission line T Tauri stars and the amplitude of light variation in V band.
【作者单位】：郑州轻工业学院;
【基金】：国家自然科学基金项目(10878015)资助
【分类号】：P12

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