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astro-ph.GA2025
Recent star formation episodes in the Galaxy: impact on its chemical properties and the evolution of its abundance gradient
Tianxiang Chen, Nikos Prantzos
We investigate the chemical evolution of the Milky Way disc exploring various schemes of recent (last several Gyr) star formation episodes, as reported in recent observational work…
astro-ph.GA2024
Evolution of lithium in the disc of the Galaxy and the role of novae
Sviatoslav Borisov, Nikos Prantzos, Corinne Charbonnel
Lithium plays a crucial role in probing stellar physics and stellar and primordial nucleosynthesis, as well as the chemical evolution of our Galaxy. Stars are considered to be the…
astro-ph.GA2024
Abundances of planetary nebulae and evolved stars: Iron and sulfur depletion, and carbon and nitrogen enrichment, in low- and intermediate-mass stellar populations in the Milky Way
Letizia Stanghellini, Verne V. Smith, Katia Cunha +1
We explore the elemental abundances in Galactic planetary nebulae (PNe) compared with those of their stellar progenitors (Red Giant Branch and Asymptotic Giant Branch, RGB and AGB,…