Abstract
On the basis of data on solar FEP (Flare Energetic Particle) generation and propagation in the Heliosphere we calculate the interaction of these particles with matter in the interplanetary space and estimate the expected space-time distribution of gamma-ray emissivity. For some simple diffusion model of solar FEP propagation we obtain analytical approximation described the time evolution of gamma ray flux angle distribution as well as time evolution of gamma ray spectrum. It is shown that by observations of gamma rays generated by solar FEP interaction with solar wind matter can be organized monitoring of solar cosmic ray propagation and solar wind matter distribution as well as of the distribution of solar wind speed in the inner Heliosphere in periods of great solar cosmic ray events. We estimate also the expected gamma ray fluxes from interaction of FEP with stellar winds for different types of stars. It is shown that observations of gamma rays caused by stellar FEP interaction with stellar wind matter can give important information on stellar FEP spectrum and mode of energetic particle propagation as well as on stellar wind matter distribution.
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Dorman, L.I. (1999). Interaction Of Flare Energetic Particles With Solar And Stellar Wind Plasma: Expected Space-Time Distribution Of Gamma Ray Emissivity. In: Büchner, J., Axford, I., Marsch, E., Vasyliūnas, V. (eds) Plasma Astrophysics And Space Physics. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4203-8_49
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DOI: https://doi.org/10.1007/978-94-011-4203-8_49
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