energetic solar particles
zarrehâ-ye xoršidi-ye kâružmand
Fr.: particules solaires énergétiques
Electrons and atomic nuclei ejected by solar flares, travelling with velocities amounting to a fraction of the velocity of light, and energies mostly in the range 1-100 million → electronvolts (eV), but occasionally as high as 15 billion eVs. Also known as solar → cosmic rays.