Frequency spectra of long-period cosmic-ray variations

Details Frequency spectra of long-period cosmic-ray variations Frequency spectra of long-period cosmic-ray variations

Oct 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ge%26ae..16..225c&link_type=abstract

(Geomagnetizm i Aeronomiia, vol. 16, Mar.-Apr. 1976, p. 225-229.) Geomagnetism and Aeronomy, vol. 16, Oct. 1976, p. 134-136. Tra

Computer Science

Cosmic Rays, Galactic Radiation, Neutron Spectra, Periodic Variations, Solar Activity Effects, Sunspot Cycle, Planets, Solar System, Spectrum Analysis

Scientific paper

The paper investigates the effect of the inner planets (Mercury, Venus, earth, Mars and Jupiter) on solar activity cycles by studying the frequency spectra of variations of the intensity of the neutron component of galactic cosmic rays and solar activity indices in the period 1958-1973. Initial data consisted of average ten day values of neutron intensity, the Wolf number and 2800 MHz solar radio emission. Values for the acceleration and the derivative of acceleration of the sun are calculated with respect to the center of mass of the system which includes the five inner planets, and the tidal force of these planets acting on the sun is also determined. Variations with periods of about 630, 350, 170 and 75 days were discovered but it was not possible to establish a single-valued relation between variations of cosmic rays and solar activity indices.

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