- icrc2007@icrc2007.unam.mx
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Contribution Poster (WITHDRAWN)
Empirical Modeling of Cosmic Ray Spectra in the 1 MeV - 100 GeV Energy Range
Speakers
- Ms. Marusja BUCHVAROVA
Primary authors
- Ms. Marusja BUCHVAROVA (Space Research Institute - Bulgarian Academy of Sciences)
Abstract content
We propose models which generalize the differential D(E) spectra of galactic
(GCR) and anomalous cosmic rays (ACR) during the 11-year solar cycle. The
models take into account the cosmic ray (CR) modulation in the Heliosphere. We
describe the connection between solar activity variation and the values of model
parameters. Our analyses show that the contribution of GCRs and ACRs to the
ionization of the ionospheres of outer planets (Jupiter, Saturn, Uranus, Neptune)
will increase with growth of the planetary distances from the Sun.
The modulated energy spectra of galactic cosmic rays are compared with force
field approximation for protons and alpha particles. The error is in the order of 1.
5%. The model solutions are compared with IMAX92, CAPRICE94 and AMS98
measurements. The proposed analytical models give practical possibility for
investigation of experimental data from measurements of galactic cosmic rays
and their anomalous component.