Explosive nucleosynthesis and Type I supernovae

Abstract

The ejecta of a particular carbon deflagration model for Type I supernovae are combined with the ejecta of a massive star to show that Type I supernovae may be important contributors to galactic nucleosynthesis. Type I supernovae may help to fill in the paucity of oxygen-burning products from the massive stars. Problems with the overproduction of <SUP>16</SUP>O from massive stars and <SUP>40</SUP>Ca, <SUP>56</SUP>Fe, and <SUP>54</SUP>Fe from deflagration models of Type I supernovae are discussed.