摘要
本文讨论了膨胀宇宙中孤立气团的运动。发现,除了静态孤立气团的收缩条件(分层统计均匀和初始半径大于临界值D_r^(-1)之外,膨胀情形下收缩条件还要包括,哈勃常量H小于某个常量D_t。
The contraction of an isolated gas group in the expanding universe has been discussed. It is found that in addition to the contracted conditions of the statical isolated gas group, the initial gas group is straticulate statistical uniform and the initial radius is larger than a critical value D_r^(-1), the contracted conditions of expanding case also include that the Hubble constant H is smaller than a constant D_t.
出处
《高能物理与核物理》
CSCD
北大核心
1993年第9期803-806,共4页
High Energy Physics and Nuclear Physics
