Accretion rates of moonless embedded in circumplanetary particle disks
Accretion rates of moonless embedded in circumplanetary particle disks
复制标题
嵌入环行星粒子盘中的无月吸积率
DOI：
10.1088/0004-6256/146/2/25
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Hiroshi Daisaka
中科院分区：
文献类型：
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作者：
Keiji Ohtsuki;Yuki Yasui;Hiroshi Daisaka
我们研究的引力捕获概率的碰撞粒子在环行粒子盘和吸积率的小粒子到嵌入式小卫星，使用解析计算，三体轨道积分，N体模拟。在前人工作的基础上，我们在解析计算和轨道积分中考虑了粒子轨道偏心率和倾角的瑞利分布，并证实了当粒子速度色散等于或大于它们的相互逃逸速度以及碰撞粒子的物理半径之和与它们的相互Hill半径之比时，它们之间的一致性。
We examine the gravitational capture probability of colliding particles in circumplanetary particle disks and accretion rates of small particles onto an embedded moonlet, using analytic calculation, three-body orbital integrations, and N-body simulations. Expanding our previous work, we take into account the Rayleigh distribution of particles' orbital eccentricities and inclinations in our analytic calculation and orbital integration and confirm agreement between them when the particle velocity dispersion is comparable to or larger than their mutual escape velocity and the ratio of the sum of the physical radii of colliding particles to their mutual Hill radius (