88 citations · 274 across the 6 of their papers we have counts for
6 papers
The -pockets in AGB Stars and Their Fingerprints in Mainstream SiC Grains
Nan Liu, Andrew M. Davis, Roberto Gallino +5
We identify three isotopic tracers that can be used to constrain the -pocket and show the correlated isotopic ratios of Sr and Ba in single mainstream presolar SiC grains.…
Correlated Strontium and Barium Isotopic Compositions of Acid-Cleaned Single Silicon Carbides from Murchison
Nan Liu, Michael R. Savina, Roberto Gallino +8
We present strontium, barium, carbon, and silicon isotopic compositions of 61 acid-cleaned presolar SiC grains from Murchison. Comparison with previous data shows that acid washing…
The 13C-Pocket Structure in AGB Models: Constraints from Zirconium Isotope Abundances in Single Mainstream SiC Grains
Nan Liu, Roberto Gallino, Sara Bisterzo +3
We present postprocess AGB nucleosynthesis models with different C-pocket internal structures to better explain zirconium isotope measurements in mainstream presolar SiC gra…
Barium Isotopic Composition of Mainstream Silicon Carbides from Murchison: Constraints for s-Process Nucleosynthesis in AGB Stars
Nan Liu, Michael R. Savina, Andrew M. Davis +10
We present barium, carbon, and silicon isotopic compositions of 38 acid-cleaned presolar SiC grains from Murchison. Comparison with previous data shows that acid washing is highly…
The impact of updated Zr neutron-capture cross sections and new asymptotic giant branch models on our understanding of the s process and the origin of stardust
Maria Lugaro, Giuseppe Tagliente, Amanda I. Karakas +4
We present model predictions for the Zr isotopic ratios produced by slow neutron captures in C-rich asymptotic giant branch (AGB) stars of masses 1.25 to 4 Msun and metallicities Z…
Constraints on AGB models from the heavy-element composition of presolar SiC grains
M. Lugaro, A. M. Davis, R. Gallino +2
Presolar SiC grains formed around Asymptotic Giant Branch (AGB) stars during their carbon-rich phase and contain heavy elements in trace amounts showing the signature of the slow n…