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arXiv 0906.4347astro-ph.EPastro-ph.COastro-ph.GA
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盘-行星相互作用的数值模拟

Numerical simulations of disc-planet interactions

Richard P. Nelson Sijme-Jan Paardekooper

摘要:

原行星盘和行星大小的天体之间的引力相互作用导致角动量的交换,导致行星的迁移,并可能在盘中形成更大质量的行星。在这篇文章中,我们回顾了盘-行星相互作用的基本理论,并讨论了最近的行星嵌入原行星盘的数值模拟结果。我们认为,迁移的低质量行星和最近的事态发展,在我们的理解,所谓的I型迁移时,更充分的治疗光盘热力学。我们讨论了逃逸迁移的中等质量的行星(所谓的III型迁移),巨行星的迁移(II型迁移)和相关的间隙形成的磁盘。高性能的计算设施的可用性,使全球模拟磁化,湍流光盘进行计算,我们讨论了最近的结果,低质量和高质量的行星嵌入在这样的光盘。

英文摘要:

The gravitational interaction between a protoplanetary disc and planetary sized bodies that form within it leads to the exchange of angular momentum, resulting in migration of the planets and possible gap formation in the disc for more massive planets. In this article, we review the basic theory of disc-planet interactions, and discuss the results of recent numerical simulations of planets embedded in protoplanetary discs. We consider the migration of low mass planets and recent developments in our understanding of so-called type I migration when a fuller treatment of the disc thermodynamics is included. We discuss the runaway migration of intermediate mass planets (so-called type III migration), and the migration of giant planets (type II migration) and the associated gap formation in the disc. The availability of high performance computing facilities has enabled global simulations of magnetised, turbulent discs to be computed, and we discuss recent results for both low and high mass planets embedded in such discs.

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