Calculated gamma-ray line fluxes from the Type II supernova 1987 A

Details Calculated gamma-ray line fluxes from the Type II supernova 1987 A Calculated gamma-ray line fluxes from the Type II supernova 1987 A

Jul 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...318l..51c&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 318, July 15, 1987, p. L51-L55.

Astronomy and Astrophysics

Astrophysics

45

Gamma Ray Spectra, Stellar Mass Ejection, Supernova 1987A, Cobalt Isotopes, Nuclear Fusion, Stellar Composition, Stellar Mass

Scientific paper

Calculations of the time-dependent flux in the 847-keV gamma-ray line from the decay of Co-56 that might be expected from the type II supernova 1987 A in the LMC are presented. It is found that, for a wide range of assumed Co-56 and supernova ejecta masses, this line should be detectable by planned gamma-ray observations with flux sensitivities of about 0.0001 photons/sq cm sec. If this line is detected, the measurement of its time-dependent flux together with its width will make it possible to determine not only the mass of Co-56 produced by explosive nucleosynthesis, but also the total mass and energy of the ejecta, and hence the mass of the supernova's progenitor.

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