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Kinematic distances of pre-main-sequence stars in the Lupus star-forming region

Published online by Cambridge University Press:  26 February 2013

P. A. B. Galli ,
R. Teixeira ,
C. Ducourant  and
C. Bertout
P. A. B. Galli
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 1226 Cidade Universitária, 05508–900 São Paulo SP, Brazil email: [email protected]
R. Teixeira
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 1226 Cidade Universitária, 05508–900 São Paulo SP, Brazil email: [email protected]
C. Ducourant
Affiliation:
Observatoire Aquitain des Sciences de l'Univers, CNRS-UMR 5804, BP 89, 33270 Floirac, France
C. Bertout
Affiliation:
Institut d'Astrophysique de Paris, 98bis, Bd. Arago, 75014 Paris, France
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Abstract

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To reliably determine the main physical parameters (masses and ages) of young stars, we must know their distances. While the average distance to nearby star-forming regions (<300 pc) is often known, the distances to individual stars are usually unknown. Individual distances to members of young moving groups can be derived from their radial velocities and proper motions using the convergent-point strategy. We investigate the kinematic properties of the Lupus moving group with the primary objective of deriving individual distances to all group members.

Keywords

stars: distancesstars: kinematicsstars: pre–main-sequenceISM: individual (Lupus star-forming region)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S289: Advancing the Physics of Cosmic Distances , August 2012 , pp. 390 - 393
Copyright
Copyright © International Astronomical Union 2013

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