Signatures of SN Ia in the galactic thick disk. Observational evidence from alpha -elements in 67 dw

  title={Signatures of SN Ia in the galactic thick disk. Observational evidence from alpha -elements in 67 dw},
  author={Sofia Feltzing and Thomas Bensby and Inge Lundstr{\o}m},
  journal={Astronomy and Astrophysics},
We present the first results of a larger study into the stellarabundances and chemical trends in long-lived dwarf stars in the solarneighbourhood that belong to (based on their kinematics) the thin andthick galactic disk, respectively. We confirm that the trends of alpha-elements in the thin and thick disk are distinct (this has previouslybeen shown for Mg by Fuhrmann cite{Fuhrmann}, but e.g. Chen et al.cite{Chen} claimed the trends to follow smoothly upon each other). Wefind that the thick… 

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