Interpretations and implications of gamma-ray lines from solar flares, the galactic centre and gamma-ray transients

Details Interpretations and implications of gamma-ray lines from solar flares, the galactic centre and gamma-ray transients Interpretations and implications of gamma-ray lines from solar flares, the galactic centre and gamma-ray transients

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981rspta.301..671r&link_type=abstract

(Royal Society, Discussion on Gamma-Ray Astronomy, London, England, Nov. 27, 28, 1980.) Royal Society (London), Philosophical Tr

Astronomy and Astrophysics

Astronomy

18

Astronomical Spectroscopy, Galactic Nuclei, Gamma Ray Spectra, Solar Flares, Emission Spectra, Energy Spectra, Gamma Ray Observatory, Milky Way Galaxy, Nuclear Fusion, Solar Spectra

Scientific paper

Gamma-ray line emission from the Sun results from the nuclear interactions of energetic protons and nuclei with the solar atmosphere. These interactions produce gamma-ray lines from neutron capture, positron annihilation, and nuclear deexcitation. Observation of such gamma-rays can provide unique information on high energy processes at the Sun. Details of solar gamma-ray spectroscopy are discussed along with the galactic center 0.511 MeV line. The richness of astronomy at 0.511 MeV is indicated by the great variety of astrophysical positron production mechanisms and by the many astrophysical sites where such mechanisms could operate. Attention is also given to lines from gamma-ray transients, and the prospects for gamma-ray line detections, taking into account gamma-ray lines from processes of nucleosynthesis and lines from low-energy cosmic ray interactions.

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