Stability of an Isothermal Disk with Three-Dimensional Magnetic Fields and Radial Viscous Force |
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| Authors: | DING Shixue YANG LanTian WANG DaZhi LU Ye |
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| Institution: | 1. Institute of Astrophysics, Huazhong Normal University, Wuhan 430079, China;
2. Department of Physics, Xiangyang Teacher's College, Xiangfan 441053, China;
3. Department of Physics, Gezhouba Water Electric Power, yichang 443022, China |
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| Abstract: | The stability of an isothermal thin disk with three-dimensional magnetic fields and radial viscous force is examined in this paper. We find that the radial viscous force has no influence on the stability of viscous modes. But there is more influence on the stability of magneto-acoustic modes, which is related to the perturbation wavelength and different parts of disk. Finally, we use our model to explain the long-term variability of Quasar 3C345. |
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| Keywords: | accretion disk MHD stability radial viscous force |
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