Computer Science
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003esasp.535..625m&link_type=abstract
In: Solar variability as an input to the Earth's environment. International Solar Cycle Studies (ISCS) Symposium, 23 - 28 June 2
Computer Science
Particle Acceleration
Scientific paper
It is suggested a new method for the separation and localization of the sources of particles accelerated at/near the Sun. The method is relied upon the analysis of the data on source spectra of the interacting (precipitating) and escaping protons. The source spectra are reconstructed by two ways. For the precipitating particles that interact with the solar atmosphere one can use the data on gamma-ray line emission. The source spectra of particles escaping from the Sun may be reconstructed by the data of direct particle observations near the Earth's orbit with the subsequent reverse extrapolation of the intensity-time profiles to the moment of particle injection from the source. By several examples of SEP events we have discovered an important fact: a number of particles escaping from the solar atmosphere is methodically higher than a number of precipitating (interacting) ones. When comparing the spectra for escaping and interacting particles, a possibility arises to separate their sources (impulsive flares and/or coronal mass ejections, etc.). It is shown that such a separation is possible in some long lasting solar events. Those spectra seem to be treated in terms of the concept of multiple acceleration processes at the Sun.
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