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Physical Background of the Unified Scaling Law in Spiral Galaxies |
| ZOU Zhen-Long;HAN Jin-Lin |
| Beijing Astronomical Observatory and Beijing Astrophysical Center, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
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| Cite this article: |
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ZOU Zhen-Long, HAN Jin-Lin 2000 Chin. Phys. Lett. 17 935-936 |
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Abstract We discussed the physical background of the unified scaling law in spiral galaxies, and qualitatively obtained the power index of the empirical relation among the luminosity L, radius R and the rotation velocity V. We also discussed the possible causes for the data dispersion on the plane in three-dimensional space of these parameters.
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| Keywords:
98.52.Nr
98.62.Qz
98.58.Ge
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Published: 01 December 2000
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| PACS: |
98.52.Nr
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(Spiral galaxies)
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98.62.Qz
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(Magnitudes and colors; luminosities)
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98.58.Ge
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(H I regions and 21-cm lines; diffuse, translucent, and high-velocity clouds)
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