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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Acknowledgements
This work was supported by the National Natural Science Foundation of China (No. 11178002), the Specialized Research Fund for the Doctorial Program of Higher Education (No. 201136001110007), and the Scientific & Technological Innovation Research Fund of Jiangxi Province (No. 20114ACB00900).
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Li, D.G., Liu, S.Q. & Li, X.Q. Anomalous magnetic viscosity in accretion disks with q-distributed plasmas. Astrophys Space Sci 348, 467–474 (2013). https://doi.org/10.1007/s10509-013-1568-1
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DOI: https://doi.org/10.1007/s10509-013-1568-1