Statistical moments and multipoint magnetic field correlators in a galactic dynamo model with random turbulent diffusion

Authors

DOI:

https://doi.org/10.26089/NumMet.v20r209

Keywords:

galactic dynamo, magnetic field, equations with random coefficients, intermittency, statistical moment

Abstract

In this paper we consider a stochastic model of the galactic dynamo in which the coefficient of turbulent diffusion is considered as a random process with renewal. The numerical simulation of statistical moments as well as two-point and three-point correlators of the magnetic field showing the relation between its values at various time instants is performed. The presence of intermittency expressed in the progressive growth of moments and correlators in the case of "quiet" regions of galaxies with a small fraction of the ionized hydrogen component is shown. The numerical results are compared with the results obtained analytically earlier.

Author Biographies

D.A. Grachev

S.A. Elistratov

E.A. Mikhailov

References

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Published

15-03-2019

How to Cite

Грачев Д.А., Елистратов С.А., Михайлов Е.А. Statistical Moments and Multipoint Magnetic Field Correlators in a Galactic Dynamo Model With Random Turbulent Diffusion // Numerical Methods and Programming (Vychislitel’nye Metody i Programmirovanie). 2019. 20. 88-96. doi 10.26089/NumMet.v20r209

Issue

Section

Section 1. Numerical methods and applications

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