New Constraints for Supernova Models from Presolar Silicon Carbide X Grains with Very High 26Al/27Al RatiosOPEN ACCESS
Peter Hoppe, Jan Leitner, Marco Pignatari, and Sachiko Amari The Astrophysical Journal Letters, Volume 943, Number 2 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We report C, N, Mg-Al, Si, and S isotope data of six 1–3μm-sized…
Structural Investigation of Silicon Carbide X Grains: Constraints on Condensation in Supernova Ejecta
János Kodolány, Christian Vollmer, Peter Hoppe, and Maren Müller The Astrophysical Journal Volume 868, Number 1 LINK “We analyzed seven presolar SiC grains of supernova origin (average diameter: 1–2 μm) with transmission electron microscopy. Five…
Inferred Initial 26Al/27Al Ratios in Presolar Stardust Grains from Supernovae are Higher than Previously Estimated
Evan Groopman, Ernst Zinner, Sachiko Amari, Frank Gyngard, Peter Hoppe, Manavi Jadhav, Yangting Lin, Yuchen Xu, Kuljeet Marhas, and Larry R. Nittler The Astrophysical Journal Volume 809 Number 1 Evan Groopman et al. 2015 ApJ…
Meteoritical Bulletin updates
- Oued El Hamim 003 (Eucrite)
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- Sabkhat Arryd 002 (Eucrite-pmict)
- Northwest Africa 18183 (Eucrite-melt breccia)
- Yagan 003 (LL3)
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