A Presolar Silicon Carbide Grain of Type C with Extremely Low 12C/13C Ratio

P. Hoppe, Schofield J., Pignatari M., Amari S.

52nd Lunar and Planetary Science Conference (2021), Abstract #1055


“We report on a presolar SiC grain of Type C with an extremely low 12C/13C ratio of 1.0 and strong enrichments in the heavy Si isotopes. The isotopic compositions can be satisfactorily explained by an H ingestion supernova model.”