MOND and M/L functions of spiral galaxies
碩士 === 國立交通大學 === 物理研究所 === 94 === The disappearance of masses is puzzle of astronomy. When we observe the spiral galaxies , we get the different rotation curve from the prediction of Newtonian dynamics. Modified Newtonian dynamics proposed that gravitational field needs modifications when the field...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2006
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| Online Access: | http://ndltd.ncl.edu.tw/handle/79848436308051781250 |
| Summary: | 碩士 === 國立交通大學 === 物理研究所 === 94 === The disappearance of masses is puzzle of astronomy. When we observe the spiral galaxies , we get the different rotation curve from the prediction of Newtonian dynamics. Modified Newtonian dynamics proposed that gravitational field needs modifications when the field strength g is weaker than critical value g0 g0（~1.2 × 10−8 cm s−2）. It was suggest by Milgrom in 1983, this has been shown to be a good candidate as an alternative to cosmic dark matter. In this paper , we start with this theory , and use it to calculate the M/L function of spiral galaxies. We hope it could help us to find the relation of mass and luminosity. Finally we could more understand the dynamics of spiral galaxies and the underlying physics.
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