The role of magnetorotation instability in the occurrence of magnetic field on the periphery of the galactic disk

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Abstract

The occurrence of the magnetic fields of galaxies is usually explained by the action of the dynamo mechanism. Nevertheless, at distances of the order of 15-20 kpc, the action of the dynamo is significantly weakened. The magnetic field in these regions can be described by other mechanisms, for example, magnetorotational instability. In this work, solutions that correspond to both the mechanisms of dynamo and magnetorotational instability have been found.

About the authors

T. T Khasaeva

Faculty of Physics, Lomonosov Moscow State University; Institute of Earthquake Prediction Theory and Mathematical Geophysics of the Russian Academy of Sciences

Email: hasaeva@mitp.ru
Moscow, Russia

E. A Mikhailov

Faculty of Physics, Lomonosov Moscow State University; P.N. Lebedev Physical Institute of the Russian Academy of Sciences

Moscow, Russia

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