Variable Gamma Ray Sources, 1: Interactions of Flare Energetic Particles with Solar and Stellar Winds

Abstract

The generation of gamma rays (GR) by interaction of flare energetic particles (FEP) with stellar wind matter shortly was considered in [1,2]. Here we will give a development of this research with much more details. As example, we will consider in the first the situation with GR generation in the interplanetary space by solar FEP in periods of great events, determined mainly by 3 factors: 1st- by space-time distribution of solar FEP in the Heliosphere, their energetic spectrum and chemical composition (see review in [3–10]; for this distribution can be important nonlinear collective effects (especially for great events) of FEP pressure and kinetic stream instability [11–14]. 2nd- by the solar wind matter distribution in space and its change during solar activity cycle; for this distribution will be important also pressure and kinetic stream instability of galactic cosmic rays (CR) as well as of solar FEP (especially in periods of very great events) [12–14, 15]. 3rd- by properties of solar FEP interaction with solar wind matter accompanied with GR generation through decay of neutral pions [16–18].