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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.SR2026
Modelling s-process chemical clocks: insights from high-precision Kepler data
G. Casali, M. Molero
We present Galactic chemical evolution (GCE) models for the chemical clocks [Zr/Ti] and [Ce/Ti], tracing first- and second-peak s-process nucleosynthesis, and compare them with a h…
astro-ph.IM2026
HRMOS: A High-Resolution Multi-Object Spectrograph for the VLT
Laura Magrini, Thomas Bensby, Sofia Randich +174
This White Paper presents the scientific rationale and instrument concept for HRMOS (High-Resolution Multi-Object Spectrograph), a next-generation instrument proposed for the ESO V…