Temperature Rise at the Edges of Dark Molecular Clouds

作     者：MAO Xin-Jie 毛信杰

作者机构：Astronomy DepartmentBeijing Normal UniversityBeijing 100875 Chinese Academy of Sciences-Peking University Joint Beijing Astrophysical CenterPeking UniversityBeijing 100871 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2000年第17卷第1期

页      面：67-69页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：rotating systems. assumed 

摘      要：Two-fluid magnetohydrodynamic equations are applied to dark molecular clouds that are composed of neutrals mixed with minor charged particles,weakly ionized gas *** result shows the temperatures are higher at the cloud edges than at their inner regions,the cause of which is that the cloud potential,released as clouds contract particularly at their edges,along with some dissipated rotational kinetic energy is converted into *** cloud contracting is due to the loss of the magnetic field that threads it through ambipolar ***,without the support of the magnetic and the centrifugal forces in the direction of the magnetic Held assumed to be parallel to the cloud rotating axis,the cloud collapses in that direction when its mass is over the Jeans mass.