Open AccessForm of the anomalous cosmic ray spectrum at the solar wind termination shock
Author(s) -
Steenberg Conrad D.,
Moraal Harm
Publication year - 1999
Publication title -
journal of geophysical research: space physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/1999ja900336
Subject(s) - physics , cosmic ray , shock (circulatory) , solar wind , acceleration , energy spectrum , astrophysics , heliosphere , shock waves in astrophysics , computational physics , spectrum (functional analysis) , shock wave , ultra high energy cosmic ray , cutoff , classical mechanics , mechanics , plasma , nuclear physics , quantum mechanics , medicine
New insights regarding the form of the accelerated anomalous cosmic ray spectrum at the solar wind termination shock, obtained from solutions of the cosmic ray transport equation, are presented. A simple analytical expression for the spectrum on the shock is derived, and its dependence on the acceleration parameters is shown. Particular attention is paid to the high‐energy cutoff of this spectrum. This expression and its parameterization should be applicable for the acceleration of charged particles in any spherical shock.