SIMBAD references

2003AJ....125.2018S - Astron. J., 125, 2018-2028 (2003/April-0)

A comparison of copper abundances in globular cluster and halo giant stars.

SIMMERER J., SNEDEN C., IVANS I.I., KRAFT R.P., SHETRONE M.D. and SMITH V.V.

Abstract (from CDS):

We derive [Cu/Fe] for 117 giant stars in 10 globular clusters (M3, M4, M5, M10, M13, M15, M71, NGC 7006, NCG 288, and NGC 362) and find that globular cluster Cu abundances appear to follow [Cu/Fe] trends found in the field. This result is interesting in light of recent work, which indicates that the globular cluster ω Centauri shows no trend in [Cu/Fe] with [Fe/H] over the abundance range -2.0<[Fe/H]←0.8. Of particular interest are the two clusters M4 and M5. While at a similar metallicity ([Fe/H]~-1.2), they differ greatly in some elemental abundances: M4 is largely overabundant in Si, Ba, and La compared with M5. We find that it is also overabundant in Cu with respect to M5, although this overabundance is in accord with [Cu/Fe] ratios found in the field.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: Abundances - Galaxy: Halo - Galaxy: Globular Clusters: General - Stars: Abundances - Stars: Population II

CDS comments: Table 1 : * in M 4 are Cl* NGC 6121 LEE, * in NGC 288 are a mixture of Cl* NGC 288 OCH and Cl* NGC 288 ALC (* 388 probably a misprint for Cl* NGC 288 OCH 338), in M 3 : AA = Cl* NGC 5272 S AA, II-46 = Cl* NGC 5272 S I-II-46, III-28 = Cl* NGC 5272 S I-III-28, stars L-NNN in M 13 are NGC 6205 NNN

Simbad objects: 126

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