Physics
Scientific paper
Sep 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994soph..154..177s&link_type=abstract
Solar Physics, vol. 154, no. 1, p. 177-185
Physics
20
Coronal Holes, Galactic Cosmic Rays, Interplanetary Magnetic Fields, Interplanetary Medium, Proton Density (Concentration), Solar Corona, Solar Cycles, Solar Flares, Solar Wind, Solar Wind Velocity, Sunspots, Variations, Convection-Diffusion Equation, Corotation, Correlation Coefficients, Forbush Decreases, Shock Wave Propagation, Statistical Analysis, Statistical Correlation
Scientific paper
There are two types of high-speed solar wind streams classified in two categories: coronal-hole and solar-flare-generated streams. These two types are classified in two categories considering the bulk speed, proton density, temperature and magnetic field in the interplanetary medium. Their effects on cosmic ray intensity have been studied on a short-term basis during 1980-1986. Daily means of one middle and one low-latitude set of neutron monitor data have been taken for analysis using the Chree method of superposed epochs. The investigation indicates that the solar-flare-generated high-speed solar wind streams are more effective in producing cosmic ray decreases than are the coronal-hole generated streams.
Shrivastava Pankaj Kumar
Shukla Ravindra P.
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