原行星盘的研究进展
发布时间：2018-10-11 18:31
【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。
[Abstract]:The protoplanetary disk is a gas dust disk around a young star (such as T Tauri star, HAe/Be star). It is the natural result of the collapse of the molecular cloud nucleus with initial angular momentum and the origin of the planetary system. The study of protoplanetary disk is not only an important part of star formation theory, but also the basis of planetary formation theory. The formation and evolution of disk are introduced, and the energy spectrum distribution, model and parameters of disk (mass accretion rate, mass, scale, temperature) are introduced. Then, the observational evidence of the growth of dust particles in disk and the general process of planetary formation in disk are discussed. Finally, the present situation and future of the study of the original planetary disk are summarized and prospected.
【作者单位】： 中国科学院紫金山天文台;中国科学院研究生院;
【基金】：国家自然科学基金(10733030,10621303)
【分类号】：P185
本文编号：2264824
[Abstract]:The protoplanetary disk is a gas dust disk around a young star (such as T Tauri star, HAe/Be star). It is the natural result of the collapse of the molecular cloud nucleus with initial angular momentum and the origin of the planetary system. The study of protoplanetary disk is not only an important part of star formation theory, but also the basis of planetary formation theory. The formation and evolution of disk are introduced, and the energy spectrum distribution, model and parameters of disk (mass accretion rate, mass, scale, temperature) are introduced. Then, the observational evidence of the growth of dust particles in disk and the general process of planetary formation in disk are discussed. Finally, the present situation and future of the study of the original planetary disk are summarized and prospected.
【作者单位】： 中国科学院紫金山天文台;中国科学院研究生院;
【基金】：国家自然科学基金(10733030,10621303)
【分类号】：P185
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1 李百乐;磁场、粘性和非轴对称性对原行星盘引力不稳定性的影响[D];吉林大学;2009年
，本文编号：2264824
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