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Paper: Rotational Velocities of Post T Tauri Stars in Young Stellar Associations*
Volume: 472, New Quests in Stellar Astrophysics III: A Panchromatic View of Solar-like Stars, With and Without Planets
Page: 175
Authors: Rodríguez, J.; Pinzón, G.
Abstract: This contribution summarizes the preliminary results concerning vsini measurements for a sample of G-K solar type stars in the solar neighborhood based on observations made with the European Southern Observatory telescopes obtained from ESO/ST-ECF Science Archive Facility. We conducted measurements of rotational projected velocities for a sample of 33 young low mass post-T Tauri stars with ages between 10 and 30 Myr belonging to the nearby associations: Beta Pictoris Moving Group (BPMG), Upper Centaurus Lupus (UCL), Lower Centaurus Crux (LCC), and Tucana Horologium (THA). When compared with data of members of the older clusters, the Pleiades and the Hyades, our vsini measurements appear to be consistent with an increase of the rotation between the age of BPMG and THA in agreement with the spin up expected after the disk disappearance.
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