Computer Science
Scientific paper
Jul 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..921..468m&link_type=abstract
THE FIRST GLAST SYMPOSIUM. AIP Conference Proceedings, Volume 921, pp. 468-469 (2007).
Computer Science
1
Flares, X-Ray And Gamma-Ray Emission, Particle Acceleration
Scientific paper
Neutral- and charged-pion production resulting from proton-proton and proton-α interactions become significant in solar flares when the accelerated-ion energy spectrum extends to energies >200 MeV nucleon-1. Pion production can best be inferred from spectral measurements at energies >10 MeV of the gamma-ray emission resulting from decay of the pions. GLAST will be able to measure the highest-energy portion of this pion-decay emission with excellent sensitivity. Comparison of such measurements with determinations of the accelerated-ion spectrum derived from deexcitation-line measurements at lower energies (as with the GBM) will probe the accelerated-ion spectrum at energies up to several GeV. We discuss pion production in solar flares and how the decay emission depends on the accelerated-ion spectrum and on the magnetic field and density where the pions decay. We also discuss neutron production in solar flares since GLAST will also be sensitive to neutrons.
Dermer Carles D.
Murphy Ronald J.
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