Building the Fast Galactic Dynamo |
| |
| Authors: | M Hanasz R Kosiński H Lesch |
| |
| Institution: | 1. Centre for Astronomy, Nicholas Copernicus University, PL-87-148, Piwnice/Toruń, Poland
|
| |
| Abstract: | In this paper we demonstrate the importance of cosmic rays for the dynamics of the interstellar medium. We present the first 3D-MHD numerical simulations of the Parker instability triggered by cosmic rays accelerated in randomly distributed supernova remnants. We show that in the presence of galactic rotation a net radial magnetic field is produced as a result of the cosmic ray injection and Coriolis force. This process provides a possibility of very efficient magnetic field amplification within the general frame of so called fast galactic dynamo proposed by Parker (1992). |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
