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Non-uniformities of magnetic fields of accretion disks and their stability
Zhikhareva E. N.1, Mikhailov E. A.
1,2
1Lomonosov Moscow State University, Moscow, Russia
2Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia
2Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia
Email: zhikhareva.en21@physics.msu.ru, ea.mikhajlov@physics.msu.ru
The magnetic fields of accretion disks may play a crucial role in their evolution. Thereare various ways to explain their origin, one of which is the dynamo mechanism. Given the shape of the objects, it is possible to use the thin disk approximation developed for thin disks. The question of whether the long-term existence of large-scale magnetic field non-uniformities are possible in them is of interest. It was investigated using numerical modeling if such features can be maintained in accretion disks. It is found that only axisymmetric structures are stable, azimuthal structures are eroded over time. Keywords: stability, dynamo, accretion disks, magnetism.
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