| 三维盘状星系的星系盘物质分布模型 |
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| 引用本文： | 丁蓉.三维盘状星系的星系盘物质分布模型[J].南京师大学报,1998,21(2):49-53. |
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| 作者姓名： | 丁蓉 |
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| 作者单位： | 南京师范大学学报编辑部 |
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| 摘 要： | 盘星系旋转曲线的特征是，内部刚性旋转，外部呈现为平直性，利用这个特征，从星系动力学方程线出发，以星盘的Ｐｏｓｓｉｏｎ方程为基本方程，由Ｂｅｓｓｅｌ－Ｆｏｕｉｅｒ变换导出了决定星盘物质投影面密度的方程，在此基础上，利用银河系的有关观测资料，用数值方法建立了银河系的物质分布模型。
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| 关 键 词： | 盘星系 星系动力学 物质分布模型 银河系 |
The Model of Whole Disk of Three Dimensional Disk Galaxies |
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| Ding Rong Editorial Board of Journal of Nanjing Normal University,Nanjing,PRC..The Model of Whole Disk of Three Dimensional Disk Galaxies[J].Journal of Nanjing Normal University(Natural Science Edition),1998,21(2):49-53. |
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| Authors: | Ding Rong Editorial Board of Journal of Nanjing Normal University Nanjing PRC |
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| Institution: | Ding Rong Editorial Board of Journal of Nanjing Normal University,210097,Nanjing,PRC. |
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| Abstract: | A model of three dimensional disk galaxy with a central region of rigid rotation and an outer region of flat rotation is discussed. A basic equation governing the projected surface density distribution of disk is derived by Bessel Fourier transform based on fundamental equations of galactic dynamics and Possion equation. The numeric model of the Galaxy is found from observing data. |
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| Keywords: | disk galaxy galactic dynamics numeric solution |
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