The chemical signature of a relic star cluster in the sextans dwarf spheroidal galaxy - Implications for near-field cosmology

@article{Karlsson2012TheCS,
  title={The chemical signature of a relic star cluster in the sextans dwarf spheroidal galaxy - Implications for near-field cosmology},
  author={T. Karlsson and J. Bland-Hawthorn and K. Freeman and J. Silk},
  journal={The Astrophysical Journal},
  year={2012},
  volume={759},
  pages={111}
}
We present tentative evidence for the existence of a dissolved star cluster in the Sextans dwarf spheroidal galaxy. We use the technique of chemical tagging to identify stars that are highly clustered in a multidimensional chemical abundance space (C-space). In a sample of six stars, three (possibly four) star s around [Fe/H] = −2.7 are identified as potential cluster stars. This finding, toge ther with the recognition of an apparent excess of stars in the metallicity distribution functio n… Expand
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References

SHOWING 1-10 OF 96 REFERENCES
Chemical substructure in the Milky Way halo: A new population of old stars
  • 107
THE CHEMICAL EVOLUTION OF THE URSA MINOR DWARF SPHEROIDAL GALAXY
  • 91
  • Highly Influential
  • PDF
Study of the Sextans dwarf spheroidal galaxy from the DART Ca II triplet survey
  • 109
  • Highly Influential
  • PDF
Uncovering Extremely Metal-Poor Stars in the Milky Way’s Ultrafaint Dwarf Spheroidal Satellite Galaxies*
  • 238
  • Highly Influential
  • PDF
The Birth of a Galaxy: Primordial Metal Enrichment and Stellar Populations
  • 270
  • PDF
The age distribution of massive star clusters in the antennae galaxies
  • 186
  • PDF
First stars V - Abundance patterns from C to Zn and supernova yields in the early Galaxy
  • 772
  • Highly Influential
  • PDF
...
1
2
3
4
5
...