| Disk Thicknesses and Some Parameters of 108 Non-Edge-On Spiral Galaxies |
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| 作者姓名： | Tao Hu Qiu-He Peng Hong-Shi Zong |
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| 作者单位： | Tao Hu1，2，3，Qiu-He Peng1，4，5 and Hong-Shi Zong2 1 Department of Astronomy，Nanjing University，Nanjing 210093; 2 Department of Physics，Nanjing University，Nanjing 210093 3 Department of Physics and Electronics，Zhangzhou Normal University，Zhangzhou 363000 4 Joint Astrophysics Center of Chinese Academy of Sciences-Peking University，Beijing 100871 5 Open Laboratory of Cosmic Ray and High Energy Astrophysics，Chinese Academy of Sciences，Beijing 100039 |
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| 摘 要： | We present disk thicknesses, some other parameters and their statistics of 108 non-edge-on spiral galaxies. The method for determining the disk thickness is based on solving Poisson's equation for a disturbance of matter density in three-dimensional spiral galaxies. From the spiral arms found we could obtain the pitch angles, the inclination of the galactic disk, and the position of the innermost point (the forbidden region with radius r 0 to the galactic center) of the spiral arm, and finally the thickness.
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| 关 键 词： | galaxy: disk — galaxies: fundamentalparameters — galaxies: spiral — galaxies: structure |
| 修稿时间： | 2006-11-07 |
Disk Thicknesses and Some Parameters of 108 Non-Edge-On Spiral Galaxies |
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| Tao Hu Qiu-He Peng Hong-Shi Zong.Disk Thicknesses and Some Parameters of 108 Non-Edge-On Spiral Galaxies[J].Chinese Journal of Astronomy and Astrophysics,2007,7(4):579-589. |
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| Authors: | Tao Hu Qiu-He Peng Hong-Shi Zong |
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| Abstract: | We present disk thicknesses, some other parameters and their statistics of 108 non-edge-on spiral galaxies. The method for determining the disk thickness is based on solving Poisson's equation for a disturbance of matter density in three-dimensional spiral galaxies. From the spiral arms found we could obtain the pitch angles, the inclination of the galactic disk, and the position of the innermost point (the forbidden region with radius r 0 to the galactic center) of the spiral arm, and finally the thickness. |
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| Keywords: | galaxy: disk- galaxies: fundamental parameters- galaxies: spiral - galaxies:structure |
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