Time extended production of neutrons during a solar flare

Details Time extended production of neutrons during a solar flare Time extended production of neutrons during a solar flare

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icrc....4..126c&link_type=abstract

In NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 4 p 126-129 (SEE N85-34729 23-92)

Physics

Gamma Rays, Neutron Sources, Particle Production, Solar Cosmic Rays, Solar Flares, Solar Neutrons, Bremsstrahlung, Gamma Ray Spectra, Mesons, Neutrons, Photons, Proton Energy, Solar Maximum Mission, Solar Protons

Scientific paper

The most energetic neutral emissions expected from solar flares are gamma rays (10 MeV) from relativistic primary and secondary electron bremsstrahlung,from approx 0 meson decay, and from neutrons ( 50 MeV). Bremsstrahlung photon energies extend to that of the highest energy electron present, but the shape of the pi0 gamma ray spectrum, peaking at 69 MeV, does not depend strongly on the proton spectrum above threshold, which is approx. 292 MeV for meson production on protons. The highest energy neutrons observed indicate directly the highest energy ions which interact at the Sun, and the presence or absence of anergy cutoff in the acceleration process. The high-energy proton spectrum shape can be determined from the neutron spectrum.

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