A Comparison of Copper Abundances in Globular Cluster and Halo Field Giant Stars
(2003) In The Astronomical Journal 125(4). p.2018-2028- Abstract
- 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]... (More)
- 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/965031
- author
- Simmerer, Jennifer LU ; Sneden, Christopher ; Ivans, Inese ; Kraft, Robert ; Shetrone, Matthew and Smith, Verne
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- in
- The Astronomical Journal
- volume
- 125
- issue
- 4
- pages
- 2018 - 2028
- publisher
- IOP Publishing
- external identifiers
-
- scopus:0042260822
- ISSN
- 1538-3881
- language
- English
- LU publication?
- no
- id
- e5547668-15ea-41b8-83fe-44bf584fc7e1 (old id 965031)
- date added to LUP
- 2016-04-04 12:56:19
- date last changed
- 2022-04-24 02:22:34
@article{e5547668-15ea-41b8-83fe-44bf584fc7e1, abstract = {{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.}}, author = {{Simmerer, Jennifer and Sneden, Christopher and Ivans, Inese and Kraft, Robert and Shetrone, Matthew and Smith, Verne}}, issn = {{1538-3881}}, language = {{eng}}, number = {{4}}, pages = {{2018--2028}}, publisher = {{IOP Publishing}}, series = {{The Astronomical Journal}}, title = {{A Comparison of Copper Abundances in Globular Cluster and Halo Field Giant Stars}}, volume = {{125}}, year = {{2003}}, }