Revisiting ΔY/ΔZ from multiple main sequences in globular clusters: insight from nearby stars
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
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|Source:||Monthly Notices of the Royal Astronomical Society|
|01_Portinari_Revisiting_ΔY/ΔZ_from_multiple_2010.pdf||954.93 kB||Adobe PDF||Request a copy|
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