| 引力不稳定性在巨分子云聚合形成中的作用 |
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| 引用本文： | 张同杰,宋国玄.引力不稳定性在巨分子云聚合形成中的作用[J].北京师范大学学报(自然科学版),2000,36(2):218-220. |
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| 作者姓名： | 张同杰 宋国玄 |
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| 作者单位： | 1. 北京师范大学天文学系,100875,北京
2. 中国科学院上海天文台,200030,上海;中国科学院国家天文观测中心,100012,北京 |
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| 摘 要： | Two models of
molecular cloud in disk galaxies are proposed to investigate the formation of giant
molecular clouds (GMCs) under the gravitational instability and random collision using
PP(Particle-Particle) simulation. Some conclusions can be drawn: 1) The gravitational
instability can make small clouds form large clouds faster than random collision. 2) The
differential rotation in the gravitational instability model plays a positive role in the
agglomeration of molecular clouds.
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| 关 键 词： | 巨分子云 引力不稳定性 数值模拟 |
THE EFFECT OF GRAVITATIONAL INSTABILITY IN THE AGGREGATION FORMATION OF GMCS |
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| Zhang Tongjie,Song Guoxuan.THE EFFECT OF GRAVITATIONAL INSTABILITY IN THE AGGREGATION FORMATION OF GMCS[J].Journal of Beijing Normal University(Natural Science),2000,36(2):218-220. |
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| Authors: | Zhang Tongjie Song Guoxuan |
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| Abstract: | Two models of molecular cloud in disk galaxies are proposed to investigate the formation of giant molecular clouds (GMCs) under the gravitational instability and random collision using PP(Particle Particle) simulation. Some conclusions can be drawn: 1) The gravitational instability can make small clouds form large clouds faster than random collision. 2) The differential rotation in the gravitational instability model plays a positive role in the agglomeration of molecular clouds. |
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| Keywords: | giant molecular cloud gravitational instability numerical simulation |
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