Magnetic fronts in galaxies

Magnetic-field reversals observed in the Milky Way at one or more Galactocentric radii are interpreted as long-lived transient structures containing memory of the seed magnetic fields. These magnetic fronts can he described using the so-called no-z approximation for the nonlinear, mean-field dynamo equations, which are the topic of the paper. We obtain asymptotic estimates for the speed of propagation of discontinuities in the solution (internal fronts). These estimates agree well with numerical solutions of the no-z equations, and support our interpretation of the magnetic-field reversals as long-lived transients. © 2001 MAIK "Nauka/Interperiodica".

Authors
Petrov A.P. 1 , Sokoloff D.D.2 , Moss D.L.3
Number of issue
7
Language
English
Pages
497-501
Status
Published
Volume
45
Year
2001
Organizations
  • 1 Russ. Univ. of Peoples' Friendship, Moscow, Russian Federation
  • 2 Moscow State University, Moscow, Russian Federation
  • 3 University of Manchester, Manchester, United Kingdom
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/327/