2 papers
astro-ph.SR2025
Exploring giant barium stars: ratio and elemental abundances of carbon, nitrogen, and oxygen
M. P. Roriz, N. A. Drake, N. Holanda +4
Barium (Ba) stars belong to binary systems that underwent mass transfer events. As a consequence, their envelopes were enriched with material synthesized in the interiors of their…
astro-ph.SR2025
The Occurrence and Impact of Carbon-Oxygen Shell Mergers in Massive Stars
L. Roberti, M. Pignatari, H. E. Brinkman +6
In their final stages before undergoing a core-collapse supernova, massive stars may experience mergers between internal shells where carbon (C) and oxygen (O) are consumed as fuel…