New proper motions of pre-main sequence stars in Taurus-Auriga

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dc.creatorFrink, S.
dc.creatorRoeser, S.
dc.creatorNeuhaeuser, R.
dc.creatorSterzik, M. F.
dc.date1997-04-29
dc.date.accessioned2026-07-07T02:23:18Z
dc.date.available2026-07-07T02:23:18Z
dc.descriptionWe present proper motions of 72 T Tauri stars located in the central region of Taurus-Auriga. These proper motions are taken from a new proper motion catalogue called STARNET. Our sample comprises 17 classical T Tauri stars and 55 weak-line T Tauri stars, most of the latter discovered by ROSAT. 53 stars had no proper motion measurement before. Kinematically, 62 of these stars are members of the association. A velocity dispersion of less than 2-3 km/s is found which is dominated by the errors of the proper motions. This velocity dispersion correlates with a spread in distances. Furthermore we present proper motions of 58 stars located in a region just south of the Taurus molecular clouds and compare the kinematics of the youngest stars in this sample (younger than 3.5 10^7 yrs) with the kinematics of the pre-main sequence stars in the Taurus-Auriga association. From a comparison of the space velocities we find that the stars in the central region of Tau-Aur are kinematically different from the stars in the southern part. Among the stars with large proper motions far off the Taurus mean motion we find 2 Pleiades candidates and 7 possible Pleiades runaway stars.
dc.descriptionLaTeX, 10 pages, 6 figures, l-aa.sty included, accepted for publication in Astronomy & Astrophysics
dc.identifierhttps://arxiv.org/abs/astro-ph/9704281
dc.identifierhttp://arxiv.org/abs/astro-ph/9704281
dc.identifierA&A 325 (1997) 613
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/11195
dc.subjectAstrophysics
dc.titleNew proper motions of pre-main sequence stars in Taurus-Auriga
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