Approximation of the Behaviour of Galactic Cosmic-Ray Intensity at Various Distances from the Sun
Abstract
The dependences of the galactic cosmic ray intensity on solar activity levels at various distances from the sun are obtained in terms of a nonstationary model using data on the cosmic ray radial gradient. It is shown that when moving away from the sun, the 11-year modulation amplitude will degenerate due to the fall in the frequency, velocity, and density of the disturbances, and to the enlargement of the volume, which results in the appearance of significant phase shifts with progressing activity. Results are compared with data obtained from Pioneers 10 and 11 from 1972 to 1978.
- Publication:
-
International Cosmic Ray Conference
- Pub Date:
- 1981
- Bibcode:
- 1981ICRC....3..275L
- Keywords:
-
- Astronomical Models;
- Cosmic Rays;
- Galactic Radiation;
- Radiant Flux Density;
- Solar Activity Effects;
- Distance;
- Energetic Particles;
- Heliosphere;
- Pioneer 10 Space Probe;
- Pioneer 11 Space Probe;
- Solar Cycles;
- Sun;
- Space Radiation;
- ASTRONOMICAL MODELS;
- COSMIC RAYS;
- GALACTIC RADIATION;
- RADIANT FLUX DENSITY;
- SOLAR ACTIVITY EFFECTS;
- DISTANCE;
- ENERGETIC PARTICLES;
- HELIOSPHERE;
- PIONEER 10 SPACE PROBE;
- PIONEER 11 SPACE PROBE;
- SOLAR CYCLES;
- SUN