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astro-ph.SR2025
Calcium Excess in Novae: Beyond Nuclear Physics Uncertainties
Mallory Loria, Pavel Denissenkov, Chris Ruiz +1
We examine Ca abundances in classical novae from spectroscopic observations spanning 65 years and investigate whether they are systematically high compared to those predicted by no…
astro-ph.SR2025★ 3 cited
Production of radioactive Na in core-collapse supernovae: the Ne-E(L) component in presolar grains and its possible consequences on supernova observations
M. Pignatari, S. Amari, P. Hoppe +8
Presolar graphite grains carry the isotopic signatures of their parent stars. A significant fraction of presolar graphites shows isotopic abundance anomalies relative to solar for…