Carbon-enhanced Hyper-metal-poor Stars and the Stellar Imf at Low Metallicity


The two known “hyper-metal-poor” (HMP) stars, HE0107-5240 and HE1327-2326, have extremely high enhancements of the light elements C, N, and O relative to Fe and appear to represent a statistically significant excess population relative to the halo metallicity distribution extrapolated from [Fe/H] > −3. This study weighs the available evidence for and… (More)


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