Overcoming Migration during Giant Planet Formation
Overcoming Migration during Giant Planet Formation
复制标题
克服巨行星形成过程中的迁移
DOI：
10.1086/512080
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
N. Murray
中科院分区：
文献类型：
--
作者：
E. Thommes;L. Nilsson;N. Murray
在核心吸积模型中，气态巨行星的形成是一场生长与迁移之间的竞赛;对于一个核心成为木星行星，它必须在螺旋进入宿主星星之前吸积其外壳。我们使用一个多区域的数值模型，以扩大我们以前的调查的“机会之窗”的气体巨星形成的磁盘。当考虑到由于核心大气的碰撞截面增强，我们发现，广泛的原行星盘具有这样的窗口。
In the core accretion model, gas giant formation is a race between growth and migration; for a core to become a Jovian planet, it must accrete its envelope before it spirals into the host star. We use a multizone numerical model to extend our previous investigation of the "window of opportunity" for gas giant formation within a disk. When the collision cross section enhancement due to core atmospheres is taken into account, we find that a broad range of protoplanetary disks possess such a window.