Galactic Evolution of Silicon Isotopes : Application to Presolar SiC Grains From Meteorites

@inproceedings{TimmesGalacticEO,
  title={Galactic Evolution of Silicon Isotopes : Application to Presolar SiC Grains From Meteorites},
  author={Francis X. Timmes and Donald D. Clayton}
}
We calculate and discuss the chemical evolution of the isotopic silicon abundances in the in-terstellar medium at distances and times appropriate to the birth of the solar system. This has several objectives, some of which are related to anomalous silicon isotope ratios within presolar grains extracted from meteorites; namely: (1) What is the relative importance for silicon isotopic compositions in the bulk ISM of Type II supernovae, Type Ia supernovae, and AGB stars? (2) Are 29 Si and 30 Si… CONTINUE READING