The return of the anomalous cosmic rays to 1 AU in 1992

Details The return of the anomalous cosmic rays to 1 AU in 1992 The return of the anomalous cosmic rays to 1 AU in 1992

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20.2263m&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 20, p. 2263-2266

Astronomy and Astrophysics

Astronomy

36

Anomalies, Concentration (Composition), Cosmic Rays, Earth Orbits, Nitrogen, Oxygen, Satellite Observation, Solar Flux, Spaceborne Astronomy, Annual Variations, Mass Spectrometers, Radiation Counters, Solar Cycles, Spaceborne Telescopes, Temporal Distribution, Time Series Analysis

Scientific paper

New observations of low energy (approximately 1 to 200 MeV/nuc) cosmic rays measured by three newly launched experiments on Solar, Anomalous, and Magnetospheric Particle Explorer (SAMPEX) during 1992 and 1993 show the strong presence of anomalous cosmic ray (ACR) nitrogen and oxygen, well before the approaching solar minimum. When compared with ACR temporal variations over the past two solar cycles we find that the 1992-1993 fluxes are approximately 5 to 10 times their level at corresponding neutron monitor counting rates in 1969-1970 and 1985.

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