[Fe/H] and [a/Fe] of cepheids in the outer galactic disk
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Carney, B W
Yong, David
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Cambridge University Press
Abstract
We have derived [Fe/H] and [α/Fe] abudnances for Cepheids with Galactocentric distances of 11 to 17 kpc. The stars are as metal-poor as much older open clusters at comparable distances. Like the clusters, and despite their youth, the Cepheids also show enhanced [α/Fe] abundances indicating enhanced contributions from SNe II relative to the Solar neighborhood
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International Astronomical Union. Proceedings
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Restricted until
2099-12-31