Stardust in the Laboratory

Andrew Davis, University of Chicago
Monday, Dec 01, 12:30 PM - JINA-CEE Pizza Lunch
1400 Biomedical and Physical Sciences Building

Abstract:  Presolar grains recovered from primitive meteorites preserve the isotopic record of nucleosynthesis in individual stars. Our group has used laser resonant ionization mass spectrometry (RIMS) to measure the isotopic compositions of Cr, Fe, Ni, Sr, Zr, Mo, Ru, Ba, and Nd in presolar SiC and graphite to constrain models of nucleosynthesis in AGB stars and core-collapse supernovae. I will discuss recent and planned future isotopic studies of presolar grains and their implications for stellar nucleosynthesis.