Molecule formation and cloud collapse
Molecule formation and cloud collapse
复制标题
分子形成和云塌陷
DOI：
10.1007/bf00648124
复制
发表时间：
1977
影响因子：
1.9
通讯作者：
David A. Williams
中科院分区：
文献类型：
--
作者：
T. Millar;David A. Williams
考虑氢原子向分子氢的转化以及适当的加热和冷却机制，研究了均匀、非磁性、非旋转、球对称星际气体云的引力坍缩。结果表明，这种转化可以导致最初稳定的气体云的坍塌，并且在质量大于金斯质量的云中，分子形成的主要影响是改变云内部的温度分布。
The gravitational collapse of a uniform, nonmagnetic nonrotating, spherically symmetric interstellar gas cloud is studied taking into account the conversion of atomic to molecular hydrogen and appropriate heating and cooling mechanisms. It is shown that this conversion can result in the collapse of an initially stable gas cloud, and that in clouds with masses greater than the Jeans mass the main effect of molecule formation is to alter the temperature distribution inside the clouds.