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Revisiting ΔY/ΔZ from multiple main sequences in globular clusters: insight from nearby stars

Portinari, Laura; Casagrande, Luca; Flynn, Chris

Description

For nearby K dwarfs, the broadening of the observed main sequence (MS) at low metallicities is much narrower than expected from isochrones with the standard helium-to-metal enrichment ratio ΔY/ΔZ ∼ 2. Though the latter value fits well the MS around so

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
URI: http://hdl.handle.net/1885/79393
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1111/j.1365-2966.2010.16811.x

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