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The ODD Old, Super-Metal-Rich Open Cluster, NGC 6791

Published online by Cambridge University Press:  31 March 2017

Ann Merchant Boesgaard ,
Michael G. Lum  and
Constantine P. Deliyannis
Ann Merchant Boesgaard
Affiliation:
Institute for Astronomy, University of Hawai'i at Manoa, 2680 Woodlawn Drive, Honolulu, HI 96822 Visiting Astronomer, W. M. Keck Observatory jointly operated by the California Institute of Technology and the University of California
Michael G. Lum
Affiliation:
Institute for Astronomy, University of Hawai'i at Manoa, 2680 Woodlawn Drive, Honolulu, HI 96822 Visiting Astronomer, W. M. Keck Observatory jointly operated by the California Institute of Technology and the University of California
Constantine P. Deliyannis
Affiliation:
Department of Astronomy, Indiana University, 727 East 3rd Street, Swain Hall West 319, Bloomington, IN47405-7105 Visiting Astronomer, W. M. Keck Observatory jointly operated by the California Institute of Technology and the University of California
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Abstract

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We report on the composition of turn-off stars in the intriguing open cluster, NGC 6791, which is old, but super-metal-rich using Keck/HIRES spectra. We find [Fe/H] = +0.30 ±0.02[O/Fe]n −0.06 ±0.02,[Mg/Fe], [Si/Fe], [Ca/Fe], and [Ti/Fe] near solar and the two Fe-peak elements, Cr and Ni, are consistent with Fe.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S316: Formation, evolution, and survival of massive star clusters , August 2015 , pp. 338 - 340
Copyright
Copyright © International Astronomical Union 2017 

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