S-process abundances in globular clusters: M4 vs. M5 and NGC 1851

David Yong*, Frank Grundahl, Amanda Karakas, David L. Lambert

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    We present s-process abundances for giant stars in the globular clusters M4, M5, and NGC 1851. We find that all s-process elements are overabundant in M4 relative to M5. Curiously, the abundances of Cu and Zn are also overabundant in M4 which may offer clues to the synthesis of these elements. For NGC 1851, we find that the abundances of the s-process elements Zr and La exhibit a large dispersion. The abundances of Zr and La also appear to have a bimodal distribution reinforcing the idea that there are two stellar populations in this cluster.

    Original languageEnglish
    Title of host publicationNinth Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the Second Perugia Workshop on Nuclear Astrophysics
    Pages226-229
    Number of pages4
    DOIs
    Publication statusPublished - 2008
    Event9th Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the 2nd Perugia Workshop on Nuclear Astrophysics - Perugia, Italy
    Duration: 21 Oct 200727 Oct 2007

    Publication series

    NameAIP Conference Proceedings
    Volume1001
    ISSN (Print)0094-243X
    ISSN (Electronic)1551-7616

    Conference

    Conference9th Torino Workshop on Evolution and Nucleosynthesis in AGB Stars and the 2nd Perugia Workshop on Nuclear Astrophysics
    Country/TerritoryItaly
    CityPerugia
    Period21/10/0727/10/07

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