Open AccessIncreases in SCR energetic proton fluxes on Earth and their relation to solar sources
Author(s) -
Л. Л. Лазутин
Publication year - 2020
Publication title -
solnečno-zemnaâ fizika
Language(s) - English
Resource type - Journals
ISSN - 2712-9640
DOI - 10.12737/szf-64202006
Subject(s) - physics , solar flare , coronal mass ejection , cosmic ray , astrophysics , solar energetic particles , flare , corona (planetary geology) , solar cycle 22 , flux (metallurgy) , particle acceleration , solar cycle , solar minimum , proton , acceleration , solar maximum , astronomy , plasma , solar wind , nuclear physics , astrobiology , materials science , classical mechanics , venus , metallurgy
Logachev catalog data for solar cycle 23 has been used to study the dependence of measured increases in solar cosmic rays (SCRs) on solar perturbations. The efficiency of recording the SCR increases, driven by proton acceleration in the corona, on Earth and in its vicinity is shown to depend on power of a solar flare that created a shock wave and on position of the flare on the solar disk. As the particle flux moves along the heliolongitude away from the parent flare, the acceleration efficiency decreases, i.e. the maximum energy of the accelerated particles and their intensity at equal energy decrease. As a result, at a certain distance along a heliolongitude from the parent solar flare, the solar proton flux intensity decreases to the galactic background, and there is no SCR increase detected.