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Relativistic solar cosmic rays
Author(s) -
Duggal S. P.
Publication year - 1979
Publication title -
reviews of geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 8.087
H-Index - 156
eISSN - 1944-9208
pISSN - 8755-1209
DOI - 10.1029/rg017i005p01021
Subject(s) - physics , interplanetary spaceflight , cosmic ray , solar energetic particles , health threat from cosmic rays , interplanetary space , astrophysics , relativistic particle , interplanetary medium , particle acceleration , shock wave , interplanetary dust cloud , astronomy , computational physics , solar wind , plasma , classical mechanics , coronal mass ejection , solar system , electron , acceleration , mechanics , nuclear physics
This paper reviews the present state of knowledge concerning the relativistic particles of solar origin. The analytic techniques for obtaining information regarding the distribution of particles in the interplanetary space from ground‐based observations are described. The general features of pitch angle anisotropy of high‐energy particles are outlined. The concepts of relativistic particle propagation in the corona and interplanetary space are discussed with special reference to the relevant new ideas that have emerged from studies of energetic particle events. The experimental and theoretical arguments that indicate that particles can be accelerated to high energies by shock waves in the heliomagnetosphere are reviewed. Finally, a brief summary of the well‐established ideas and unsolved problems is presented.