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| Paper: |
Lithium in Cool Stars Detected in EUV Surveys: ZAMS, PTTS, or PMS? |
| Volume: |
154, Cool Stars, Stellar Systems and the Sun: Tenth Cambridge Workshop |
| Page: |
954 |
| Authors: |
Pastori, L.; Tagliaferri, G.; Cutispoto, G.; Pallavicini, R. |
| Abstract: |
High-resolution spectra in the region of the Li 1 6707.8 AA doublet were obtained for more than 50 stars, of spectral type from F5 to K5, EUV-selected with the ROSAT WFC. We find that one third of these stars are as young as the Pleiades or younger. In particular there are 11 stars that are between the Pleiades and IC 2602 lithium upper envelopes, which means that they are just arrived or are arriving on the ZAMS. Four stars of our sample are in a region where only PMS stars should lie. These results, though preliminary, would imply that the PMS stars detected by Neuhauser et al. (1997) are in fact due to a high concentration of young objects in the Gould Belt. |
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