Orbital migration of protoplanets - The inertial limit
Orbital migration of protoplanets - The inertial limit
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原行星的轨道迁移——惯性极限
DOI：
10.1086/168138
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
K. Hourigan
中科院分区：
文献类型：
--
作者：
W. Ward;K. Hourigan
研究了盘的动力学演化和嵌入的原行星的轨道迁移。它示出了如何迁移的原行星，由于密度波扭矩可以抑制磁盘的潮汐截断的趋势。一个临界质量被确定为磁盘属性的函数，代表极限质量，可以维持漂移而不失速。这个惯性极限推导解析，使用准稳态理论，并通过数值实验证实。这一结果与Lin和Papaloizou（1986）关于不存在这样一个极限的主张相矛盾。密度波扭矩引起的物体轨道移动性可能在太阳系的早期演化中发挥了重要作用。参考文献9。
The dynamical evolution of a disk and the orbital migration of an embedded protoplanet are examined. It is shown how the migration of a protoplanet due to density wave torques can suppress the tendency for tidal truncation of the disk. A critical mass is determined as a function of the disk properties that represents the limiting mass that can sustain drift without stalling. This inertial limit is derived analytically, using a quasi-steady state theory, and confirmed by numerical experiment. This result contradicts the claim of Lin and Papaloizou (1986) that such a limit does not exist. Orbital mobility of objects due to density wave torques may have played an important role in the early evolution of the solar system. 9 refs.