Discovery of HE 1523–0901, a Strongly r-Process-enhanced Metal-poor Star with Detected Uranium*

@article{Frebel2007DiscoveryOH,
  title={Discovery of HE 1523–0901, a Strongly r-Process-enhanced Metal-poor Star with Detected Uranium*},
  author={A. Frebel and N. Christlieb and J. Norris and C. Thom and T. Beers and J. Rhee},
  journal={The Astrophysical Journal},
  year={2007},
  volume={660}
}
  • A. Frebel, N. Christlieb, +3 authors J. Rhee
  • Published 2007
  • Physics
  • The Astrophysical Journal
  • We present age estimates for the newly discovered, very r-process-enhanced metal-poor star HE 1523-0901 ([Fe/H] = -2.95) based on the radioactive decay of Th and U. The bright (V = 11.1) giant was found among a sample of bright metal-poor stars selected from the Hamburg/ESO Survey. From an abundance analysis of a high-resolution (R = 75,000) VLT/UVES spectrum, we find HE 1523-0901 to be strongly overabundant in r-process elements ([r/Fe] = 1.8). The abundances of heavy neutron-capture elements… CONTINUE READING
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