Solution topologies for cosmic ray modified galactic winds. I  Spherical symmetry
Abstract
The paper presents a simple spherically symmetric galactic wind model which includes the dynamical effect of spatially diffusing cosmic rays with an outward pressure gradient. Due to the fact that the diffusion coefficient is small near the galaxy, the cosmic rays are strongly coupled to the thermal gas. The cosmic ray diffusion coefficient increases further away from the galaxy; in this case, the cosmic rays decouple from the thermal gas and no longer contribute to the flow dynamics.
 Publication:

Astronomy and Astrophysics
 Pub Date:
 November 1989
 Bibcode:
 1989A&A...225...37Z
 Keywords:

 Cosmic Rays;
 Galaxies;
 Interstellar Matter;
 Magnetohydrodynamics;
 Space Plasmas;
 Astronomical Models;
 Boltzmann Transport Equation;
 Diffusion Coefficient;
 Pressure Gradients;
 Symmetry;
 Astrophysics