Hipparcos observations of pre-main-sequence stars |
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| Authors: | R Wichmann U Bastian J Krautter I Jankovics & S M Ruci&#;ski |
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| Institution: | Landessternwarte Ko¨nigstuhl, D-69117 Heidelberg, Germany,;Astronomisches Rechen-Institut, Mo¨nchhofstrasse 14, D-69120 Heidelberg, Germany,;Gothard Astrophysical Observatory, 9707 Szombathely, Hungary,;David Dunlap Observatory, University of Toronto, Canada |
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| Abstract: | We present first results of Hipparcos observations of nearby low-mass pre-main-sequence (PMS) stars (T Tauri and Herbig Ae/Be stars). The data obtained by Hipparcos allow us to derive weighted mean parallaxes for three major nearby star-forming regions (SFRs), Lupus, Chamaeleon I and Taurus–Auriga. Furthermore, results on the isolated objects AB Dor and TW Hya are presented. Finally, we discuss the evolutionary status of Herbig Ae/Be (HAEBE) stars on the basis of Hipparcos results. |
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| Keywords: | stars: formation stars: late-type stars: pre-main-sequence |
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