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Abundances are presented for some 20 elements in three extremely metal-poor, carbon-rich stars. All have [Fe/H] < -2.5. Based on their high proper motions and spectroscopic gravities two of them have relatively low luminosity: LP 706-7 is on or near the main sequence, while LP 625-44 is a subgiant. The third is the giant CS 22892-052, discovered to be r-processes enriched by Sneden et al. (1994). All three stars have large C and N overabundances, and large enhancements of the heavy neutron-capture elements— ~ 1-2 dex.
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Norris et al. (1997) studied this question.
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