VizieR Online Data Catalog: New WTTS in the Chamaeleon complex (Alcala+ 1997)
Abstract
We analyse the nature of the optical counterparts of the ROSAT all-sky survey (RASS) X-ray sources identified with new weak-line T Tauri (WTTS) stars in the Chamaeleon star forming region (SFR). The new WTTS are distributed throughout the whole SFR, while the classical T Tauri stars (CTTS) are found only in the cloud cores. Adopting a distance of 150pc we derive the stellar parameters and place the new WTTS in the HR diagram. By comparison with theoretical pre-main sequence (PMS) evolutionary tracks, we find masses in the range of 0.2-2.5M⊙ and ages from a few 105yr to 5x107yr. Many of the youngest WTTS are located far away from the main Chamaeleon dark clouds. (2 data files).
- Publication:
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VizieR Online Data Catalog
- Pub Date:
- August 1996
- DOI:
- 10.26093/cds/vizier.33190184
- Bibcode:
- 1996yCat..33190184A
- Keywords:
-
- Stars: pre-main sequence