Hostname: page-component-7c8c6479df-27gpq Total loading time: 0 Render date: 2024-03-29T11:18:49.037Z Has data issue: false hasContentIssue false

[Fe/H] and [$\alpha$/Fe] of cepheids in the outer galactic disk

Published online by Cambridge University Press:  23 December 2005

Bruce W. Carney
Affiliation:
Dept. of Physics & Astronomy, Univ. of North Carolina, Chapel Hill, NC 27599 USA email: bruce@physics.unc.edu; yong@physics.unc.edu
David Yong
Affiliation:
Dept. of Physics & Astronomy, Univ. of North Carolina, Chapel Hill, NC 27599 USA email: bruce@physics.unc.edu; yong@physics.unc.edu
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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.

Type
Contributed Papers
Copyright
© 2005 International Astronomical Union