GALLI, P.; TEIXEIRA, R.; DUCOURANT, C.; BERTOUT, C.

Métadonnées

Licence d’utilisation du document

TEIXEIRA, R.
Instituto de Astronomia, Geofísica e Ciências Atmosféricas [São Paulo] [IAG]

DUCOURANT, C.
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Université Sciences et Technologies - Bordeaux 1 [UB]
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]

Langue

Communication dans un congrès

Ce document a été publié dans

Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) XIII Latin American Regional IAU Meeting (Eds. W. J. Henney & S. Torres-Peimbert) 2011, Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) XIII Latin American Regional IAU Meeting (Eds. W. J. Henney & S. Torres-Peimbert) 2011, XIII Latin American Regional IAU Meeting, 2010-11-08, Mexico. 2011-10, vol. 40, p. 272-272

Résumé en anglais

The problem of the determination of distances has always played a central role in astronomy. However, little recent progress has been made in the distance determination of faint young stellar objects such as pre-main sequence (PMS) stars. A precise determination of distances is required to accurately determine the main physical parameters of stars (luminosity, temperature, mass and age) and to trace the evolutionary tracks of young stars. The procedure that we use here to derive individual parallaxes is based on the convergent point strategy which makes full use of the directly observed data: position, proper motion and radial velocity. %Z Ducourant, C., et al. 2005, A&A, 438, 769 Jones, D. H. P. 1971, MNRAS, 152, 231 Bertout, C., & Genova, F. 2006, A&A, 460, 499< Réduire

Mots clés

proper motions

stars: distances

stars: pre-main sequence

Origine

Importé de hal

Unités de recherche

Laboratoire d'Astrophysique de Bordeaux (LAB) - UMR 5804