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astro-ph.GA2026
Stellar ages from [C/N] in giant stars: applicability and limitations
Giada Casali, Luca Casagrande, Fiorenzo Vincenzo +5
The [C/N] abundance ratio is a powerful age indicator for giant stars, enabling age estimates for spectroscopic samples where traditional methods are limited. We calibrate a multiv…
astro-ph.GA2025
Mapping the Ages of Stars with Chemistry
Carlos Viscasillas Vázquez, Giada Casali, Laura Magrini +11
Chemical clocks, based on age-sensitive stellar abundance ratios, offer a powerful and scalable approach to reconstruct the formation history of the Milky Way. This white paper out…
astro-ph.GA2024
The chemical evolution of the Milky Way thin disk using solar twins
Anastasiia Plotnikova, Lorenzo Spina, Bridget Ratcliffe +2
In this study we address whether the age--metallicity relation (AMR) deviates from the expected trend of metallicity increasing smoothly with age. We also show the presence (or abs…