Rotational Properties of Post-T Tauri Stars in the Taurus-Auriga Region

Details Rotational Properties of Post-T Tauri Stars in the Taurus-Auriga Region Rotational Properties of Post-T Tauri Stars in the Taurus-Auriga Region

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jena.confe..30a&link_type=abstract

"JENAM-2007, "Our non-stable Universe", held 20-25 August 2007 in Yerevan, Armenia. Abstract book, p. 30-30"

Physics

Scientific paper

Post-T Tauri stars (PTTS) are pre-Main Sequence (PMS) late-type stars approaching the Main Sequence. Given their evolutionary stage, intermediate between the T Tauri phase and the Zero Aged Main Sequence, the rotational properties of PTTS are crucial to understand the evolution of angular momentum in PMS late-type stars. In recent years, large numbers of PTTS were discovered in the Taurus-Auriga region, based on high-resolution echelle spectroscopy and proper motion data. Our main goal is to derive the rotational properties of this sample of PTTS. So we have made some long-term observations of 62 PTTS in Taurus-Auriga region during 3-7 years in three optical filters (BVR). We found periodic variations for 22 PTTS and confirmed the periods for 19 PTTS. We plan to present our results on their rotational properties.

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