Silicon carbide grains of type C provide evidence for the production of the unstable isotope ${}^{32}$Si in supernovae

M. Pignatari, E. Zinner, M. G. Bertolli +8

Carbon-rich grains are observed to condense in the ejecta of recent core-collapse supernovae, within a year after the explosion. Silicon carbide grains of type X are C-rich grains…