Characteristics of the decay phase of proton fluxes in solar events as a function of observer’s heliolongitude |
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Authors: | E I Daibog Yu I Logachev K Kecskeméty |
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Institution: | (1) Skobeltsyn Institute of Nuclear Physics, Moscow State University, Vorob’evy gory, Moscow, 119899, Russia;(2) KFKI Research Institute for Particle and Nuclear Physics, H-1525 Budapest, POB 49, Hungary |
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Abstract: | Events in energetic solar protons with the energy > 4 MeV at the stage of their decay are considered for the period from 1974 to 2001. It is shown that in the events with the exponential shape of decay for west flares (relative to the observation point), the characteristic decay time τ and the power index γ of the energy spectrum decrease with an increase in the angular distance between the observer and the source of the particles on the Sun, while this effect is absent for east flares. |
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