Binary populations of carbon-enhanced metal-poor stars

Robert George Izzard, Evert Glebbeek, Richard James Stancliffe, Onno R Pols

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We construct binary-star population nucleosynthesis models of carbon-enhanced metal-poor (CEMP) stars. We compare the CEMP to extremely metal-poor (EMP) ratio of our models to the observed ratio and find it is an order of magnitude too small. Through an increase in the efficiency of third dredge-up in low-mass, low-metallicity, thermally-pulsing Asymptotic Giant Branch (TP-AGB) stars our models better match the observations.
Original languageEnglish
Pages (from-to)311 - 313
Number of pages3
JournalPublications of the Astronomical Society of Australia
Issue number3
Publication statusPublished - 2009

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