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20022023
most citedNew constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey

844 citations · 13.3k across the 121 of their papers we have counts for

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Showing 2007Show all

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astro-ph2007★ 119 cited

The Helium abundance and Delta Y / Delta Z in Lower Main Sequence stars

Luca Casagrande, Chris Flynn, Laura Portinari +2

We use nearby K dwarf stars to measure the helium-to-metal enrichment ratio, a diagnostic of the chemical history of the Solar Neighbourhood. Our sample of K dwarfs has homogeneous…