Common Envelope Evolution and Double Cores of Planetary Nebulae
Common Envelope Evolution and Double Cores of Planetary Nebulae
复制标题
DOI：
10.1086/168974
复制
发表时间：
1990-07
期刊：
影响因子：
--
通讯作者：
M. Kool
中科院分区：
文献类型：
--
作者：
M. Kool
在统计上研究了由普通信封（CE）进化形成的由白矮人和主要伴侣组成的近距离二进制文件的速率。研究了二进制后二进制二进制中原产量，次级质量和轨道周期等性质的分布。对于四种情况，提出了最初质量比分布的合理选择以及二级和巨型核心之间的重力结合能的分数α的四个情况，这是可以弹出包膜的四个。结果表明，这两个参数的有趣约束可以从PN双核的观察数据中得出。 25裁判。
The rate at which close binaries consisting of a white dwarf and a main-sequence companion are formed by common envelope (CE) evolution is statistically studied. The distribution of properties like primary mass, secondary mass, and orbital period in post-CE binaries is studied. Results are presented for four cases bracketing reasonable choices of the initial mass ratio distribution and the fraction alpha of the gravitational binding energy between the secondary and the giant core which is available to eject the envelope. The results indicate that interesting constraints on both these parameters can be derived from the observational data on double cores of PN. 25 refs.