High-energy processes in solar flares

Abstract

view Abstract Citations (210) References (63) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS High-Energy Processes in Solar Flares Murphy, R. J. ; Dermer, C. D. ; Ramaty, R. Abstract A detailed study of high-energy processes in solar flares is reported, including the production of neutrons and pions, and incorporating isobaric and scaling models and a recent compilation of pion production data (Dermer, 1986). The broad-band gamma-ray spectrum resulting from the decay of neutral pions, the bremsstrahlung of positrons and electrons from the decay of charged pions, and the annihilation in flight of positrons is evaluated. Also evaluated is the 0.511 MeV gamma-ray line resulting from the annihilation of the positrons which survive annihilation in flight. Calculations were based on an isotropic, thick-target model using the best available nuclear data and models. Results are compared with extensive observation of the June 3, 1982 flare (10-120 MeV gamma rays), 0.511 and 2.2 MeV line emission, nuclear line emission, high-energy neutrons, and interplanetary charged particles. Publication: The Astrophysical Journal Supplement Series Pub Date: March 1987 DOI: 10.1086/191180 Bibcode: 1987ApJS...63..721M Keywords: Gamma Ray Spectra; High Energy Interactions; Particle Acceleration; Solar Corpuscular Radiation; Solar Flares; Bremsstrahlung; Neutron Spectra; Particle Production; Pions; Positron Annihilation; Radioactive Decay; Solar Atmosphere; Solar Physics; GAMMA RAYS: GENERAL; NUCLEAR REACTIONS; PARTICLE ACCELERATION; SUN: FLARES full text sources ADS |