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A uvbyCaHbeta CCD Analysis of the Open Cluster Standard, NGC 752
B. A. Twarog, B. J. Anthony-Twarog, C. P. Deliyannis +1
Precision uvbyCaHbeta photometry of the nearby old open cluster, NGC 752, is presented. The mosaic of CCD fields covers an area ~42' on a side with internal precision at the 0.005…
Spectroscopic Abundances in the Open Cluster, NGC 6819
Donald B. Lee-Brown, Barbara J. Anthony-Twarog, Constantine P. Deliyannis +2
High-dispersion spectra of 333 stars in the open cluster NGC 6819, obtained using the HYDRA spectrograph on the WIYN 3.5m telescope, have been analyzed to determine the abundances…
The Old, Super-Metal-Rich Open Cluster, NGC 6791 - Elemental Abundances in Turn-off Stars from Keck/HIRES Spectra
Ann Merchant Boesgaard, Michael G. Lum, Constantine P. Deliyannis
The study of star clusters has advanced our understanding of stellar evolution, Galactic chemical evolution and nucleosynthesis. Here we investigate the composition of turn-off sta…