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Anomalous magnetic viscosity in accretion disks with q-distributed plasmas |
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| Authors: | D. G. Li S. Q. Liu X. Q. Li |
| Affiliation: | 1. School of Materials Science and Engineering, Nanchang University, Nanchang, 330047, China 2. School of Nuclear Engineering and Technology, East China Institute of Technology, Fuzhou, 344000, China 3. Department of Physics, Nanchang University, Nanchang, 330047, China |
| Abstract: | Based on the equations of the self-generated magnetic field in the q-distributed plasmas, the studies show that the magnetic field is modulationally unstable by the perturbation method and the equations have self-similar collapse solution. The anomalous magnetic viscosity of accretion disks generates from highly spatially intermittent flux of the self-generated magnetic field. In addition, the anomalous viscosity coefficient is 8 orders more than the molecular viscosity and is modified by the adjustable index q, which may preferably explain the observations. |
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