Metal-poor stars observed with the Magellan telescope. I. Constraints on progenitor mass and metallicity of AGB stars undergoing s-process nucleosynthesis
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Placco, Vinicius M.
Frebel, Anna
Beers, Timothy C
Karakas, Amanda
Kennedy, Catherine
Rossi, Silvia
Christlieb, Norbert
Stancliffe, R J
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IOP Publishing
Abstract
We present a comprehensive abundance analysis of two newly discovered carbon-enhanced metal-poor (CEMP) stars. HE 2138-3336 is a s-process-rich star with [Fe/H] = -2.79, and has the highest [Pb/Fe] abundance ratio measured thus far, if non-local thermodyn
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Astrophysical Journal, The
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2037-12-31
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