Chemical abundances in tidally disrupted globular clusters

D. Yong, J. Meléndez, K. Cunha, A. I. Karakas, J. E. Norris, V. V. Smith

Research output: Chapter in Book/Report/Conference proceedingChapter


We present abundance measurements in the tidally disrupted globular cluster NGC 6712. In this cluster, there are large star-to-star variations of the light elements C, N, O, F and Na. While such abundance variations are seen in every well-studied globular cluster, they are not found in field stars and indicate that clusters like NGC 6712 cannot provide many field stars and/or field stars do not form in environments with chemical-enrichment histories like those of NGC 6712. Preliminary analysis of NGC 5466, another tidally disrupted cluster, suggests little (if any) abundance variation for O and Na and the abundance ratios [X/Fe] are comparable to field stars at the same metallicity. Therefore, globular clusters like NGC 5466 may have been Galactic building blocks.

Original languageEnglish (US)
Title of host publicationStar clusters
Subtitle of host publicationbasic galactic building blocks throughout time and space
EditorsRichard de Grijs, Richard de Grijs, Jacques Lepine
Number of pages4
StatePublished - 2009
Externally publishedYes

Publication series

NameProceedings of the International Astronomical Union
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221


  • Galaxy: abundances
  • Globular clusters: individual (NGC 5466
  • NGC 6712)
  • Stars: abundances

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science


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