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Galactic cosmic ray gradients in the ecliptic plane and at high latitudes during two solar cycles (meteorite data)
Authors:AK Lavrukhina  GK Ustinova
Institution:Institute of Geochemistry and Analytical Chemistry, USSR Academy of Sciences, Moscow, USSR
Abstract:Results of investigations of cosmogenic isotope radioactivity in chondrites fallen to earth during two solar cycles are presented. The data obtained on radial and latitudinal gradients cover the period 1955–1976, heliocentric distances from 1.03 AU to 3.33 AU, and heliographic latitudes from 23°S to 16°N. The dependence of radial and latitudinal gradients on the phase of solar activity is established, as well as a north-south asymmetry during a certain period after the inversion of the general solar magnetic field in 1969.
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