PMO OpenIR  > PMO中文期刊
寻找AKARI/FIS观测到的长寿命原行星盘
刘琼; 刘尧
2015
Source Publication天文学报
Issue2Pages:123-129
Abstract基于日本红外卫星AKARI/FIS的年轻恒星体样本,通过匹配Hipparcos(High Precision Parallax Collecting Satellite)的数据库共计得到21个太阳系附近的年轻恒星体,可靠性为90%.恒星的光谱类型从B型到M型星.利用Hipparcos精确的三角视差测量,定出源在赫罗图位置分布,进而与理论的演化轨迹等时线比较估算恒星的年龄.结果发现样本中存在两个年龄大于10 Myr的年轻恒星体.光学至红外能谱分布表明这两个源是II型年轻恒星体,即有原行星盘.通过进一步的能谱拟合表明这两个源的年龄分别为(14.1±4.2)Myr和(16.8±4.4)Myr.长寿命...
Language中文
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/14933
CollectionPMO中文期刊
Recommended Citation
GB/T 7714
刘琼,刘尧. 寻找AKARI/FIS观测到的长寿命原行星盘[J]. 天文学报,2015(2):123-129.
APA 刘琼,&刘尧.(2015).寻找AKARI/FIS观测到的长寿命原行星盘.天文学报(2),123-129.
MLA 刘琼,et al."寻找AKARI/FIS观测到的长寿命原行星盘".天文学报 .2(2015):123-129.
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