Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986azh....63.1169a&link_type=abstract
Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 63, Nov.-Dec. 1986, p. 1169-1178. In Russian. Research supported by the Universi
Astronomy and Astrophysics
Astronomy
Particle Motion, Propagation Modes, Solar Corona, Solar Cosmic Rays, Stellar Models, Astronomical Spectroscopy, Azimuth, Convective Flow, Energy Spectra, Solar Flares
Scientific paper
A coronal propagation model which includes convective transport of particles near the flare as well diffusion and centrifugal drift at large solar-longitudes is examined. This model is used to analyze data on solar cosmic ray (SCR) spectra for a series of solar proton events. The following consequences of the model are illustrated on the basis of the August 22, 1958 event: (1) a clear picture of SCR spectral evolution during coronal propagation, (2) a flattening of the ejection spectrum in comparison with that of the source, (3) an east-west asymmetry of the azimuthal distribution and time profile of particles with a given energy, and (4) near agreement between the ejection spectrum and the source's spectrum within the limits of the fast propagation region.
Alvarez-Madrigal M.
Miroshnichenko Leonty I.
Perez-Peraza Jorge
Rivero-Garduso F.
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