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- Title
Two-stage acceleration of solar cosmic rays.
- Authors
Tsap, Yu.; Isaeva, E.
- Abstract
On the basis of data from the Radio Solar Telescope Network (RSTN), as well as the Geostationary Operational Environmental Satellite (GOES) and the WIND spacecraft, for the period from 1989 to 2006 covering 107 flare events, we investigated the relationship between the intensity of solar cosmic rays and parameters of continuum radio bursts (25-15400 MHz), as well as type II radio bursts in the meter and decahectometer wavelength ranges. Proton fluxes with energies E > 1−100 MeV were calculated with regard to a reduced heliolongitude. The maximum correlation between solar cosmic rays and solar parameters of microwave bursts was 0.80. Its value was no more than 0.40 for the drift rate of type II bursts and 0.70 for the compression rate of coronal shock waves. Based on linear regression equations, we estimated the contribution of coronal shock waves to the acceleration of protons. We found that major acceleration processes occur in the area of burst energy release and complimentary processes occur at the fronts of coronal shock waves. The contribution of the latter to the acceleration process increases significantly with proton energy.
- Subjects
COSMIC rays; SOLAR telescopes; SOLAR radiation; SHOCK waves; GOES (Meteorological satellite)
- Publication
Geomagnetism & Aeronomy, 2012, Vol 52, Issue 7, p921
- ISSN
0016-7932
- Publication type
Article
- DOI
10.1134/S0016793212070195