The most metal-poor stars. IV. the two populations with [Fe/H] ≲ -3.0
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Authors
Norris, John
Yong, David
Bessell, Michael
Christlieb, N
Asplund, Martin
Gilmore, Gerard
Wyse, Rosemary F G
Beers, Timothy C
Barklem, Paul S
Frebel, Anna
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IOP Publishing
Abstract
We discuss the carbon-normal and carbon-rich populations of Galactic halo stars having [Fe/H] ≲ -3.0, utilizing chemical abundances from high-resolution, high signal-to-noise model-atmosphere analyses. The C-rich population represents ∼28% of stars be
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Astrophysical Journal, The
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Open Access
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