Post-T Tauri Stars in the Nearest OB Association

  title={Post-T Tauri Stars in the Nearest OB Association},
  author={Eric E. Mamajek and Michael R. Meyer and James William Liebert},
  journal={The Astronomical Journal},
  pages={1670 - 1694}
We present results of a spectroscopic survey of X-ray– and proper-motion–selected samples of late-type stars in the Lower Centaurus–Crux (LCC) and Upper Centaurus–Lupus (UCL) subgroups of the nearest OB association: Scorpius-Centaurus. The primary goals of the survey are to determine the star formation history of the OB subgroups and to assess the frequency of accreting stars in a sample dominated by "post–T Tauri" pre–main-sequence (PMS) stars. We investigate two samples: (1) proper-motion… 
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