Uncertainties in Supernova Yields. I. One‐dimensional Explosions

Abstract

Theoretical nucleosynthetic yields from supernovae are sensitiveto both the details of the progenitor star and the explosioncalculation. We attempt to comprehensively identify the sources ofuncertainties in these yields. In this paper we concentrate on thevariations in yields from a single progenitor arising from common1D methods of approximating a supernova explosion. Subsequent paperswill examine 3D effects in the explosion and the progenitor, andtrends in mass and composition. For the 1D explosions we find thatboth elemental and isotopic yields for Si and heavier elements area sensitive function of explosion energy. Also, piston-driven andthermal bomb-type explosions have different yields for the sameexplosion energy. Yields derived from 1D explosions are nonunique.