Supernovae and supernova remnants at high energies

Details Supernovae and supernova remnants at high energies Supernovae and supernova remnants at high energies

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aipc..211...38c&link_type=abstract

IN: High-energy astrophysics in the 21st century; Proceedings of the Workshop, Taos, NM, Dec. 11-14, 1989 (A91-47977 20-90). New

Astronomy and Astrophysics

Astronomy

1

High Energy Interactions, Supernova Remnants, Gamma Ray Astronomy, Photosphere, X Ray Sources

Scientific paper

The physical phenomena that are observable with X- and gamma-ray observations of supernovae are discussed with respect to possible high-energy astrophysics experiments. Prompt photospheric emission and its echo are discussed, supernova radioactivity and neutron star effects are examined, and circumstellar and interstellar interaction are reviewed. The primary uncertainties are found to be the hardening of the spectrum by non-LTE effects and the amount of absorption of the radiation from the initial soft X-ray burst. The radioactivity in supernovae is theorized to lead to gamma-ray lines and continuum emission unless the event is low-mass type II. Gamma-ray observations are proposed to examine the efficiency of particle acceleration, and high-resolution spectroscopy can provide data regarding ionization, temperature, composition, and velocities of the X-ray-emitting gas.

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