Rotation curve of galaxies by the force induced by mass of moving particles |
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| Authors: | Kyuwook Ihm Kyoung-Jae Lee |
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| Institution: | 1. Beamline research division, Pohang Accelerator Laboratory, Pohang, Kyungbuk, 790-784, Korea
2. Department of Physics, POSTECH, Pohang, Kyungbuk, 790-784, Korea
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| Abstract: | Many attempts have been made to explain the flat rotation curve of spiral galaxies regardless of distance from the center, in disagreement with the Newtonian prediction that this speed should diminish as the inverse square of distance. One explanation for this discrepancy is that the galaxy is embedded in dark matter, which interacts with baryonic matter only gravitationally. Many studies have focused on finding the distribution of this dark matter that fits well with observed data, but it is by definition undetectable by current technology, and must therefore remain hypothetical. Instead of dark matter, we propose a novel force, named mirinae force, generated by the mass of relatively-moving particles, and demonstrate that this force explains the rotation curve and evolution of a galaxy in which some of the inner mass of the supermassive black hole at the galactic center is assumed to be revolving at a relativistic speed. The calculation yielded important results that support the existence of mirinae force and validate the proposed model: First, the mirinae force explains why most of the matter is in the galactic disk and in circular motion which is similar to that of particles in a cyclotron. Second, the mirinae force explains well both the flat rotation curve and the varied slope of the rotation curve observed in spiral galaxies. Third, at the flat velocity of 220 km/s, the inner mass of the Milky Way calculated by using the proposed model is 6.0×1011 M ⊙, which is very close to 5.5×1011 M ⊙ (r<50 kpc, including Leo I) estimated by using the latest kinematic information. |
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