| 哈雷彗星等离子体彗尾亮度分布的理论分析 |
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| 引用本文： | 胡中为,阎林山.哈雷彗星等离子体彗尾亮度分布的理论分析[J].空间科学学报,1989,9(2):104-109. |
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| 作者姓名： | 胡中为 阎林山 |
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| 作者单位： | 1.南京大学天文系 |
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| 摘 要： | 本文借助Nazarchuk的扩散理论模型和有关资料, 分析了1986年1月4日哈雷彗星等离子体彗尾的尾轴方向及其垂直方向的相对亮度分布, 推算出CO+离子的平均寿命、纵向(沿尾轴)和横向扩散系数, 估算了磁场强度, 最后进行一些讨论.
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| 收稿时间： | 1987-10-10 |
THEORETICAL ANALYSIS OF BRIGHTNESS PROFILES FOR PLASMA TAIL OF COMET HALLEY |
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| Institution: | 1.Astronomy Department, Nanjing University2.Shanghai Observatory, Academia Sinica |
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| Abstract: | In this paper, relative brightness profiles along plasma tail axis and several sections perpendicular to the axis for comet Halley on 4 January 1986 are analysed with the aid of Hayar-chuk's theoretical diffusion model and other relevant data. By fitting observed brightness profiles with theoretical profiles, some of physical parameters for the plasma tail are estimated, such as the mean lifetime of CO+ ions, longitudinal (along tail axis) and transverse diffusion coefficients, possible lower and upper limits of magnetic field intensity in direction of the tail axis. Finally, certain conclutions and discussions are made briefly. |
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