[Kunow 1984 a]
The fast individualists in the solar system:
Cosmic rays
H. Kunow and G. Wibberenz.
The fast individualists in the solar system: Cosmic rays.
DFVLR Ten Years of Helios, 124 -148.
(SEE N85-27794 16-92).
1984
Contents
Solar cosmic rays were investigated onboard Helios.
Phenomena related to the measurements of energetic particles are presented.
The measurements of cosmic rays between Sun and Earth show the dominant
influence of the Sun on the whole solar system.
Long term variations of the cosmic rays are related to the sunspot cycle.
At many locations in the heliosphere acceleration processes of rays are
observed; solar flares are the most effective acceleration process.
In the acceleration region in the solar atmosphere the plasma densities are
high, the dimensions of magnetic field structures are small, and the energy
involved is high.
In interplanetary space, plasma densities are much smaller, magnetic field
structures are very large, and the energy densities at the location of
acceleration are low.
Origin and propagation of cosmic rays depend on the environmental
conditions, e. g., the state of the plasma, the plasma waves, and
magnetic fields at the source and along the way to the observer.
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