Physics
Scientific paper
Feb 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985p%26ss...33..191b&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 33, Feb. 1985, p. 191-201.
Physics
18
Current Sheets, Galactic Cosmic Rays, Heliosphere, Particle Flux Density, Diurnal Variations, Interplanetary Magnetic Fields, Neutron Counters, Solar Activity
Scientific paper
Cosmic ray intensity variations near the heliospheric current sheet, both above and below it, were studied during 1964-76. A superposed epoch analysis (with reference to IMF sector boundaries or heliospheric current sheet crossings) of nucleonic intensity data from four neutron monitors, well distributed in latitude from the pole to the equator, was performed. The study was made during the two solar minimum activity periods, 1964-65 and 1975-76, using the data from Thule, Deep River, Rome, and Huancayo neutron monitors. It is shown that the cosmic ray density is higher near the current sheet and decreases as the heliomagnetic latitude increases, and that the latitudinal gradient is nearly symmetrical both above and below the heliomagnetic equator during the periods of minimum activity. The results were discussed in the light of theoretical and observational evidence.
Badruddin
Yadav N. R.
Yadav Ravi Shankar
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