Through thick and thin: kinematic and chemical components in the solar neighbourhood

  title={Through thick and thin: kinematic and chemical components in the solar neighbourhood},
  author={Julio F. Navarro and Mario G. Abadi and Kim A Venn and Kenneth C. Freeman and Borja Anguiano},
  journal={Monthly Notices of the Royal Astronomical Society},
We search for chemically distinct stellar components in the solar neighbourhood using a compilation of published data. Extending earlier work, we show that when the abundances of Fe, α elements and the r-process element Eu are considered together, stars separate neatly into two groups that delineate the traditional thin and thick disc components of the Milky Way. The group akin to the thin disc is traced by stars with [Fe/H] > −0.7 and [α/Fe] < 0.2. The thick disc-like group overlaps the thin… Expand

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