Oxygen Abundances of Open Cluster Dwarfs

Details Oxygen Abundances of Open Cluster Dwarfs Oxygen Abundances of Open Cluster Dwarfs

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21530803m&link_type=abstract

American Astronomical Society, AAS Meeting #215, #308.03; Bulletin of the American Astronomical Society, Vol. 42, p.306

Astronomy and Astrophysics

Astronomy

Scientific paper

I present the current results of our ongoing WIYN-Hydra and CTIO-Hydra studies of oxygen abundances in open cluster solar-type dwarfs. Previous studies of open clusters demonstrated a strong O-age relationship, whereas Fe showed little or no correlation with age, suggesting that oxygen may be a superior chronometer for Galactic chemical evolution. However, it has yet to be demonstrated robustly that open clusters exhibit the same O-Fe relationship as that found in field stars. Using our sample, I examine anew the calibration of the O-age relationship, and the nature of the open cluster O-Fe relationship.

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