88 citations · 349 across the 9 of their papers we have counts for
9 papers
Strontium-84 Enrichments in Presolar Grains Provide First Evidence of p-process Nucleosynthesis in Core-collapse Supernovae
Ishita Pal, Manavi Jadhav, Danielle Z. Shulaker +9
This study reports detection of rare p-process isotopes within presolar grains. Presolar grains are relic dust grains from dying stars. These microscopic dust particles are found i…
Coordinated Analysis of Two Graphite Grains from the CO3.0 LAP 031117 Meteorite: First Identification of a CO Nova Graphite and a Presolar Iron Sulfide Subgrain
Pierre Haenecour, Christine Floss, Jordi Jose +5
Presolar grains constitute remnants of stars that existed before the formation of the solar system. In addition to providing direct information on the materials from which the sola…
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…
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…
Europium s-process signature at close-to-solar metallicity in stardust SiC grains from AGB stars
Janaina N. Avila, Trevor R. Ireland, Maria Lugaro +5
Individual mainstream stardust silicon carbide (SiC) grains and a SiC-enriched bulk sample from the Murchison carbonaceous meteorite have been analyzed by the Sensitive High Resolu…
Tungsten isotopic compositions in stardust SiC grains from the Murchison meteorite: Constraints on the s-process in the Hf-Ta-W-Re-Os region
J. N. Ávila, M. Lugaro, T. R. Ireland +7
We report the first tungsten isotopic measurements in stardust silicon carbide (SiC) grains recovered from the Murchison carbonaceous chondrite. The isotopes 182W, 183W, 184W, 186W…
Automated NanoSIMS Measurements of Spinel Stardust from the Murray Meteorite
Frank Gyngard, Ernst Zinner, Larry R. Nittler +3
We report new O isotopic data on 41 presolar oxide grains, 38 MgAl2O4 (spinel) and 3 Al2O3 from the CM2 meteorite Murray, identified with a recently developed automated measurement…
He and Ne ages of large presolar silicon carbide grains: Solving the recoil problem
U. Ott, P. R. Heck, F. Gyngard +4
Knowledge about the age of presolar grains provides important insights into Galactic chemical evolution and the dynamics of grain formation and destruction processes in the Galaxy.…