标题： 行星迁移是不可避免的吗？ 显示英文标题

标题： Is planetary migration inevitable?

摘要： 根据当前理论，盘与嵌入行星之间的潮汐相互作用可能导致原行星在比盘寿命或估计的行星形成时间尺度更短的时间尺度上快速迁移。 因此，只有存在一种机制才能在至少一些核心向内移动的过程中将其阻止。 一旦巨行星形成，也必须有一种机制防止其迁移至盘中心。 本文回顾了已提出的不同机制，以停止或减缓迁移。 显示英文摘要

摘要： According to current theories, tidal interactions between a disk and an embedded planet may lead to the rapid migration of the protoplanet on a timescale shorter than the disk lifetime or estimated planetary formation timescales. Therefore, planets can form only if there is a mechanism to hold at least some of the cores back on their way in. Once a giant planet has assembled, there also has to be a mechanism to prevent it from migrating down to the disk center. This paper reviews the different mechanisms that have been proposed to stop or slow down migration.