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Metal-poor stars observed with the Magellan telescope. I. Constraints on progenitor mass and metallicity of AGB stars undergoing s-process nucleosynthesis

Placco, Vinicius M.; Frebel, Anna; Beers, Timothy C; Karakas, Amanda; Kennedy, Catherine; Rossi, Silvia; Christlieb, Norbert; Stancliffe, R J

Description

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

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
URI: http://hdl.handle.net/1885/72948
Source: Astrophysical Journal, The
DOI: 10.1088/0004-637X/770/2/104

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