189 citations · 417 across the 4 of their papers we have counts for
5 papers
Presolar stardust in asteroid Ryugu
Jens Barosch, Larry R. Nittler, Jianhua Wang +121
We have conducted a NanoSIMS-based search for presolar material in samples recently returned from C-type asteroid Ryugu as part of JAXA's Hayabusa2 mission. We report the detection…
The Case for Non-Cryogenic Comet Nucleus Sample Return
Keiko Nakamura-Messenger, Alexander G. Hayes, Scott Sandford +22
Comets hold answers to mysteries of the Solar System by recording presolar history, the initial states of planet formation and prebiotic organics and volatiles to the early Earth.…
Stellar Origins of Extremely - and -enriched Presolar SiC Grains: Novae or Supernovae?
Nan Liu, Larry R. Nittler, Conel M. O'D. Alexander +4
Extreme excesses of (/<10) and (/<20) in rare presolar SiC grains have been considered diagnostic of an origin in classical novae,…
Coordinated Analyses of Presolar Grains in the Allan Hills 77307 and Queen Elizabeth Range 99177 Meteorites
Ann N. Nguyen, Larry R. Nittler, Frank J. Stadermann +2
We report the identification of presolar silicates (~177 ppm), presolar oxides (~11 ppm), and one presolar SiO2 grain in the Allan Hills (ALHA) 77307 chondrite. Three grains having…
Aluminum-, Calcium- And Titanium-Rich Oxide Stardust In Ordinary Chondrite Meteorites
Larry R. Nittler, Conel M. O'D. Alexander, Roberto Gallino +4
We report isotopic data for a total of 96 presolar oxide grains found in residues of several unequilibrated ordinary chondrite meteorites. Identified grain types include Al2O3, MgA…