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| Paper: |
T Tauri Stars in the Scorpius-Centaurus OB Association |
| Volume: |
154, Cool Stars, Stellar Systems and the Sun: Tenth Cambridge Workshop |
| Page: |
1780 |
| Authors: |
Preibisch, Thomas; Zinnecker, Hans; Guenther, Eike; Sterzik, Michael; Frink, Sabine; Roser, Siegfried |
| Abstract: |
We present the results from our intermediate resolution spectroscopic survey for T Tauri stars in the Scorpius Centaurus OB association. In a 160 square-degree area in Upper Scorpius, where 86 T Tauri stars were previously known, we could identify 46 new T Tauri stars by follow-up observations of X-ray selected stars. We also investigated the completeness of our X-ray selected sample by observing more than 100 stars that were not detected as X-ray sources, but have proper motions indicating membership to ScoCen. We found that none of these stars is a T Tauri star. We conclude that our X-ray selected sample of T Tauri star seems to be rather complete for stars with L_bol >~ 0.5 L_odot. |
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