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Abundances in globular cluster red giants. V - The metal-rich globular clusters

Cohen, Judith G. (1983) Abundances in globular cluster red giants. V - The metal-rich globular clusters. Astrophysical Journal, 270 . pp. 654-665. ISSN 0004-637X. doi:10.1086/161156.

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Low-dispersion scans of stars in eight metal-rich globular clusters are used to estimate the metallicity scale of the metal rich clusters relative to 47 Tue. Various arguments are presented which establish [Fe/H]_⊙= —0.6 to —0.8 dex for 47 Tue. A new set of high-resolution, high-precision CCD spectra demonstrates that systematic errors have occurred in the placement of the continuum in previously published echelle analyses of metal-rich clusters. Reconciliation of analyses of low-dispersion scans and high-dispersion equivalent widths can be achieved with [Fe/H]_⊙= —0.7+ 0.1 dex for 47 Tue. This value is in good agreement with Bell and Gustafsson’s scale established via photometric indices computed from synthetic spectra and model atmospheres. The metal-rich globular clusters reach the solar abundance.

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Cohen, Judith G.0000-0002-8039-4673
Additional Information:© American Astronomical Society • Provided by the NASA Astrophysics Data System. Received 1982 September 7; accepted 1983 January 6. I am grateful to the NSF Fund for Travel to Foreign Observatories for airfare to Las Campanas and to the Caltech Recycling Center for financial support.
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Caltech Recycling CenterUNSPECIFIED
Subject Keywords:clusters: globular — stars: abundances — stars: late-type
Record Number:CaltechAUTHORS:20190531-091632537
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95987
Deposited By: George Porter
Deposited On:03 Jun 2019 21:11
Last Modified:16 Nov 2021 17:17

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