Gamma-ray lines - A new window to the Universe

Details Gamma-ray lines - A new window to the Universe Gamma-ray lines - A new window to the Universe

Mar 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978pht....31c..40l&link_type=abstract

Physics Today, vol. 31, Mar. 1978, p. 40-47.

Astronomy and Astrophysics

Astronomy

4

Gamma Ray Astronomy, X Ray Spectra, Black Holes (Astronomy), Cyclotron Radiation, Interstellar Matter, Neutron Stars, Nuclear Fusion, Positron Annihilation, Solar Flares, Stellar Magnetic Fields, Supernova Remnants, Supernovae

Scientific paper

Gamma-ray emission is considered in terms of its usefulness in determining the physics of nucleosynthesis, the interstellar medium, solar flares, supernovae, and neutron stars. The mechanism of gamma-ray line emission is reviewed, i.e., nuclear deexcitation, radiative capture, positron annihilation, and possibly cyclotron radiation in the strong magnetic fields of neutron stars. Various gamma-ray spectra, obtained from balloon and satellite data, are analyzed with attention to solar particle energies and densities, including particle emission from black-hole supernova remnants.

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