Detailed Chemical Abundances in the r-Process-Rich Ultra-Faint Dwarf Galaxy Reticulum 2

@article{Roederer2016DetailedCA,
  title={Detailed Chemical Abundances in the r-Process-Rich Ultra-Faint Dwarf Galaxy Reticulum 2},
  author={Ian U. Roederer and Mario L. Mateo and John I Bailey and Yingyi Song and Eric F. Bell and Jeffrey D. Crane and Sarah R. Loebman and David L. Nidever and E. Olszewski and Stephen A. Shectman and Ian B. Thompson and Monica Valluri and Matthew G. Walker},
  journal={arXiv: Solar and Stellar Astrophysics},
  year={2016}
}
The ultra-faint dwarf galaxy Reticulum 2 (Ret 2) was recently discovered in images obtained by the Dark Energy Survey. We have observed the four brightest red giants in Ret 2 at high spectral resolution using the Michigan/Magellan Fiber System. We present detailed abundances for as many as 20 elements per star, including 12 elements heavier than the Fe group. We confirm previous detection of high levels of r-process material in Ret 2 (mean [Eu/Fe]=+1.69+/-0.05) found in three of these stars… Expand
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