【摘要】 本文对冷分子气体外流的准直因子与外流气体的质量,中心星光度,谱线宽度以及与外流气体速度的关系作了初步探讨,还研究了已知的外流源在银盘上的分布情况。结果表明小质量的外流源准直性较好。在恒星早期阶段,小质量的外流源及其中心的星体可能处于更早期阶段。更多还原

【Abstract】 The relations between the collimation of the cold molecular gas outflows and the outflow mass, center star luminosity, line width and outflow velocity have been investigated.The paper also presents the distribution of outflow sources on the galactic disk. We found.the collimation of the low mass outflows are better than those of the high mass outflow sources The low mass outflows and their center stellar objects may he younger than those of the high mass in the early stellar evolution period.更多还原