| 原行星盘的研究进展 |
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| 引用本文： | 刘尧,王红池.原行星盘的研究进展[J].天文学进展,2011,29(2):148-167. |
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| 作者姓名： | 刘尧 王红池 |
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| 作者单位： | 1. 中国科学院,紫金山天文台,南京,210008;中国科学院,研究生院,北京,100049
2. 中国科学院,紫金山天文台,南京,210008 |
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| 摘 要： | 原行星盘是环绕在年轻星天体(如T Tauri型星,HAe/Be星)周围的气体尘埃盘,是具有初始角动量的分子云核在塌缩形成恒星过程中的自然结果,是行星系统的起源地。原行星盘研究不仅是恒星形成理论的重要组成部分,而且是行星形成理论的基础。首先介绍了盘的形成与演化规律;然后介绍了年轻星天体的能谱分布,盘的模型和参数(质量吸积率、质量、尺度、温度、寿命);随后讨论了尘埃颗粒在盘中生长的观测证据以及行星在盘中形成的大致过程;最后对原行星盘研究的现状和未来做了总结与展望。
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| 关 键 词： | 原行星盘 年轻星天体 能谱分布 |
Progress in the Study of Protoplanetary Disks |
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| LIU Yao,WANG Hong-chi.Progress in the Study of Protoplanetary Disks[J].Progress In Astronomy,2011,29(2):148-167. |
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| Authors: | LIU Yao WANG Hong-chi |
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| Institution: | LIU Yao~(1,2),WANG Hong-chi~1 (1.Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210008,China,2.Graduate School of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | Protoplanetary disk is a rotating circumstellar disk of gas and dust surrounding a newly formed star,such as a T Tauri star or Herbig Ae/Be star.It constitutes an integral part of the formation of protostars,being a natural result of the collapse of protostellar cores which have initial angular momentum.At the beginning of the paper,we give a brief outline of how stars form in molecular clouds. Evidence for the existence of protoplanetary disks around young stars,both from theoretical modeling and observati... |
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| Keywords: | protoplanetary disk young stellar object spectral energy distribution |
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