Acceleration of cosmic rays in the solar wind termination shock. I - A steady state technique in a spherically symmetric model

Details Acceleration of cosmic rays in the solar wind termination shock. I - A steady state technique in a spherically symmetric model Acceleration of cosmic rays in the solar wind termination shock. I - A steady state technique in a spherically symmetric model

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...330..445p&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 330, July 1, 1988, p. 445-455.

Astronomy and Astrophysics

Astrophysics

44

Cosmic Rays, Heliosphere, Particle Acceleration, Solar Wind, Boundary Conditions, Boundary Value Problems, Radiation Transport, Shock Waves, Symmetry

Scientific paper

In this paper, it is shown that a steady state model for the combined acceleration and modulation of cosmic rays in the heliosphere is possible. In this first of a series of papers, a spherically symmetric heliosphere with a termination shock at 50 AU is adopted. It is shown that the accelerated spectrum develops naturally from the shock boundary condition and that the low-energy source of particles to be accelerated need not be specified explicitly. The demonstration solutions on the shock are the expected power laws, and it is shown where shock curvature and acceleration time scale effects set in. Some of the basic features of the anomalous cosmic-ray component are explained by the solutions, but, as expected, a detailed comparison with observations must await more extensive and realistic models.

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