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On Three-Dimensional Spiral Galaxies |
| LUO Xin-Lian1;PENG Qiu-He1,2;LONG Min1;PENG Fang1;ZOU Zhi-Gang3 |
| 1Department of Astronomy, Nanjing University, Nanjing 210093
2Chinese Academy of Sciences-Peking University Joint Beijing Astrophysical Center, Beijing University, Beijing 100871
3Graduate Institute of Astronomy, National Central University, Chung-Li, 32054, Taiwan, China
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| Cite this article: |
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LUO Xin-Lian, PENG Qiu-He, LONG Min et al 2000 Chin. Phys. Lett. 17 932-934 |
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Abstract Density waves in 3D spiral galaxies are studied. In order to eliminate the forbidden region near the corotation in the grand-design galaxies, we assume that the perturbation satisfies the stable condition Q(r) > 1 over all the disk except that at the corotation. Then, a new method is put forward here to determine some basic parameters of spiral galaxies. We apply it to our Galaxy, and the results are in good agreement with the previous results.
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| Keywords:
98.35.-a
98.35.Hj
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Published: 01 December 2000
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| PACS: |
98.35.-a
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(Characteristics and properties of the Milky Way galaxy)
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98.35.Hj
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(Spiral arms and galactic disk)
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