566 citations · 1.7k across the 12 of their papers we have counts for
Showing 2002 · astro-phShow all
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astro-ph2002
Carbon-rich, extremely metal-poor Population II stars
Sean G. Ryan
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…
astro-ph2002
Observations of r- and s-process elements in Population II stars
Sean G. Ryan
The framework for the interpretation of neutron-capture elements observed in Population II stars, established 20-25 years ago, is that these stars primarily exhibit r-process signa…