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恒星黑子对恒星视星等颜色和视锂丰度的影响
熊大闰; 邓李才
2005
Source Publication天文学报
ISSN0001-5245
Volume0Issue:2Pages:125-135
Abstract发展了一种简单的双温模型用于研究黑子对活动星的视星等、颜色和视Li丰度的影响.在适当的黑子覆盖因子下,恒星黑子能产生可观的活动星的视星等(V星等约±0.2星等)、颜色(B-V颜色约-0.1星等)和Li I λ6708 (?)谱线等值宽度(约-0.2-0.3 dex)的变化.与非活动的正常恒星相比,表面被黑子覆盖的活动星有更蓝的B-V颜色,它们的Li I λ6708 (?)谱线的等值宽度也变窄.根据观测到的活动星黑子引起的光变变幅,估计视圆面黑子覆盖率的变化范围△Fs从百分之几到约0.2.视圆面黑子覆盖率不太可能超过0.3.
Keyword恒星黑子 恒星 颜色 恒星 温度 恒星 丰度
Subject Area天文和天体物理
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/11148
Collection院士文集_熊大闰
Recommended Citation
GB/T 7714
熊大闰,邓李才. 恒星黑子对恒星视星等颜色和视锂丰度的影响[J]. 天文学报,2005,0(2):125-135.
APA 熊大闰,&邓李才.(2005).恒星黑子对恒星视星等颜色和视锂丰度的影响.天文学报,0(2),125-135.
MLA 熊大闰,et al."恒星黑子对恒星视星等颜色和视锂丰度的影响".天文学报 0.2(2005):125-135.
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