Trigonometric parallaxes in the TW Hydrae Association

C. Ducourant 1 R. Teixeira 2 G. Chauvin A. Krone-Martins J.-F. Le Campion 1 P. Galli I. Song B. Zuckerman
1 M2A 2013
L3AB - Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux, OASU - Observatoire aquitain des sciences de l'univers, LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac], Université Sciences et Technologies - Bordeaux 1
Abstract : We have conducted a program of trigonometric distance measurements to 13 members of the TW Hydrae Association (TWA), which will enable us (through back-tracking methods) to derive a convincing estimate of the age of the association, independent of stellar evolutionary models. With age, distance, and luminosity known for an ensemble of TWA stars and brown dwarfs, models of early stellar evolution (which are still uncertain for young ages and substellar masses) will then be constrained by observations over a wide range of masses (0.025 to 0.7 M⊙).
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https://hal.archives-ouvertes.fr/hal-00832241
Contributeur : Marie-Paule Pomies <>
Soumis le : lundi 10 juin 2013 - 13:38:52
Dernière modification le : lundi 13 octobre 2014 - 15:43:25

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C. Ducourant, R. Teixeira, G. Chauvin, A. Krone-Martins, J.-F. Le Campion, et al.. Trigonometric parallaxes in the TW Hydrae Association. Advancing the Physics of Cosmic Distances, 2012, beijing, China. 289, pp.386-389, 2013, 〈10.1017/S1743921312021771〉. 〈hal-00832241〉

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