Carbon-rich, Extremely Metal-Poor Population II stars

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A significant fraction of very metal-poor stars have unexpectedly high carbon abundances. I recap on their discovery, describe the results of high-resolution spectroscopic studies of their composition, and consider possible origins. It is now clear that at least two, and possibly three different explanations are needed for their general characteristics.
Original languageEnglish
Title of host publicationProcs of CNO in the universe
Subtitle of host publicationASP Conf Series 304
PublisherAstronomical Society of the Pacific
ISBN (Print)1-58381-153-2
Publication statusPublished - 2003


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