On the origin of cosmic ray pulsations.
Abstract
The origin of neutron-component fluctuations with periods ranging from 10 min to 10 hr, observed during the passage of interplanetary shock waves, is examined. An analysis of the energy-dependence of the pulsation amplitude during magnetically disturbed periods indicates that the structure of Forbush decreases of galactic cosmic rays is produced by modulation of the cosmic ray gas by a packet of interacting hydromagnetic waves of various scales.
- Publication:
-
Geomagnetism and Aeronomy
- Pub Date:
- June 1980
- Bibcode:
- 1980Ge&Ae..20..391K
- Keywords:
-
- Cosmic Rays;
- Galactic Radiation;
- Interplanetary Medium;
- Neutrons;
- Arctic Regions;
- Forbush Decreases;
- Interplanetary Magnetic Fields;
- Magnetohydrodynamic Waves;
- Plasma Turbulence;
- Shock Wave Propagation;
- Cosmic Rays:Pulsations