Uncertainties in Supernova Yields I: 1D Explosions

Abstract

Theoretical nucleosynthetic yields from supernovae are sensitive to both the details of the progenitor star and the explosion calculation. We attempt to comprehensively identify the sources of uncertainties in these yields. In this paper we concentrate on the variations in yields from a single progenitor arising from common 1-dimensional methods of approximating a supernova explosion. Subsequent papers will examine 3-dimensional effects in the explosion and the progenitor, and trends in mass and composition. For the 1-dimensional explosions we find that both elemental and isotopic yields for Si and heavier elements are a sensitive function of explosion energy. Also, piston-driven and thermal bomb type explosions have different yields for the same explosion energy. Yields derived from 1-dimensional explosions are non-unique.

87 pages, 22 figures, subitted to the Astrophysical Journal

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