"R. F." . . "Sun flares"@en . "Sun corona"@en . "Gamma rays"@en . "Energetic particles"@en . "R. F. Pinto" . "bb4932c3017d28a1d0f4cab969478d41" . "Pinto" . . "Space weather"@en . "Solar wind"@en . . "Sun X-rays"@en .