| 吸积盘边缘的质量和角动量损失与激变双星的演化 |
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| 引用本文： | 黄润乾,余君岳.吸积盘边缘的质量和角动量损失与激变双星的演化[J].中国天文和天体物理学报,1996(1). |
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| 作者姓名： | 黄润乾 余君岳 |
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| 作者单位： | 中国科学院云南天文台!昆明650011(黄润乾)，香港城市大学应用科学系(余君岳) |
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| 摘 要： | 本文绘出了计算吸积盘边缘物质和角动量损失，以及它们对激变双星演化影响的理论模型.计算结果表明，紫外天文卫星（IUE）观测到的高速物质流是来源于吸积盘边缘，吸积盘边缘的角动量损失可以成为周期大于3小时的激变双星演化的物理机制．
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| 关 键 词： | 激变变星 物质损失 吸积盘 |
The Mass and Angular Momentum Loss from the Edge of the Accretion disc and the Evolution of Cataclysmic Binaries |
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| HUANG Run-qian K. N. Yu.The Mass and Angular Momentum Loss from the Edge of the Accretion disc and the Evolution of Cataclysmic Binaries[J].Chinese Journal of Astronomy and Astrophysics,1996(1). |
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| Authors: | HUANG Run-qian K N Yu |
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| Abstract: | The IUE observations of high exitation P cygni profiles provide evidence that there is mass outflow in the cataclysmic variables with speed of -5000 km/s which can not be drived by the late-type secondary stars. We proposed here that these outflows are originated from the outer edge of the accretion disc and give a model for calculation of the mass and angular momentum loss from the edge of the accretion disc and its effects on the evolution of cataclysmic variables. The results of the calculations show that the angular momentum loss from the edge of the disc can account for the mechanism for driving the evolution of cataclysmic billary systems with periods longer than 3 hrs. |
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| Keywords: | cataclysmic variables stellar mass loss accretion discs |
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