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Observational Features and Databases of Solar Cosmic Rays

  • Leonty I. Miroshnichenko
Part of the Astrophysics and Space Science Library book series (ASSL, volume 260)

Abstract

Due to spacecraft measurements, at present it became possible to observe solar particles near the Earth’s orbit (at 1 AU) in the range of E ≤ 0.5 MeV/nucleon, and an occurrence rate of the SPEs turned out to raise drastically with decreasing of the threshold energy of their registration. An average rate of the SPE occurrence is no more than 1.0 at E > ≥ 435 MeV/nucleon, about 2.0 at E ≥ 100 MeV/nucleon, and ≥ 250 event/year at E ≤ 10 MeV/nucleon (for protons). Decreasing of the threshold energy of registration, increasing of the detector sensitivity and duration of spacecraft measurements allowed to conclude that the Sun is, in fact, a permanent source of energetic particles with the energies of E ≥ 1 MeV/nucleon.

Keywords

Solar Wind Coronal Mass Ejection Solar Flare Observational Feature Neutron Monitor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 2001

Authors and Affiliations

  • Leonty I. Miroshnichenko
    • 1
    • 2
  1. 1.IZMIRANTroitsk, Moscow RegionRussia
  2. 2.UNAMMexico

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