| 年轻星体附近冷分子气体外流的准直性及其在银盘上的分布 |
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| 引用本文： | 毛信杰,吴月芳,郝晋新,侯梅.年轻星体附近冷分子气体外流的准直性及其在银盘上的分布[J].北京大学学报(自然科学版),1989(5). |
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| 作者姓名： | 毛信杰 吴月芳 郝晋新 侯梅 |
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| 作者单位： | 北京师范大学天文系
(毛信杰)，北京大学地球物理系
(吴月芳，郝晋新)，北京师范大学天文系(侯梅) |
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| 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。
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| 关 键 词： | 星际分子 外向流源 恒星早期演化 |
Collimation and Distribution on the Galactic Disk of Cold Molecular Gas Outflows Near Young Stellar Objects |
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| Mao Xinjie,Wu Yuefang,Hao inxin,Hou Mei.Collimation and Distribution on the Galactic Disk of Cold Molecular Gas Outflows Near Young Stellar Objects[J].Acta Scientiarum Naturalium Universitatis Pekinensis,1989(5). |
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| Authors: | Mao Xinjie Wu Yuefang Hao ]inxin Hou Mei |
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| 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. |
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| Keywords: | outflow sources early stellar evoluti on |
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