2 papers
astro-ph.SR2026
A critical analysis of main-sequence fitting in open clusters to derive the helium-to-metal enrichment ratio
G. Valle, N. Ricci, M. Dell'Omodarme +3
We aim to investigate the feasibility of accurately determining the helium-to-metal enrichment ratio for open clusters using Gaia DR3 photometry. To test the reliability of…
astro-ph.SR2025
Constraining the helium-to-metal enrichment ratio from nearby field stars using Gaia DR3 photometry
N. Ricci, G. Valle, M. Dell'Omodarme +2
We investigate the feasibility of accurately determining the helium-to-metal enrichment ratio, , from Gaia DR3 photometry for nearby low-mass main sequence field stars. We s…