Magnetic fields with random initial conditions in discs with Kepler rotation curve

Abstract Magnetic fields of various astrophysical objects are described using the dynamo mechanism. Corresponding equations in three-dimensional case quite difficult to be solved. So, two-dimensional models can useful for such problems. For galactic and accretion discs, it is convenient use no- z z approximation. The initial conditions magnetic field have a special interest. It seems that seed generated by Biermann mechanism, after they transformed small-scale which gives random structure field. Previously has been shown lead generation large-scale structures correspond galaxies at moment. In this work, we studied Kepler rotation curve, mostly suitable discs. Here, thin disc rapidly changing angular velocity simple model assumptions.