Determination of kinematic distances of pre-main-sequence stars in star-forming regions

Phillip A. B. Galli , Ramachrisna Teixeira , C. Ducourant (1, 2, 3, 4) , Claude Bertout (5)

1 OASU - Observatoire aquitain des sciences de l'univers
2 LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac]
3 UB - Université Sciences et Technologies - Bordeaux 1
4 L3AB - Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux
5 IAP - Institut d'Astrophysique de Paris

Many studies of star-forming regions have been carried out since the discovery of compact Hii regions in the late 1960s. The kinematic properties of young stars in the nearest regions with ongoing and recent star formation provide essential tests of their formation mechanisms. The detection of coeval moving groups allows determination of individual distances through the convergent-point method. As a result, the main physical properties of these stars and their early evolutionary stages can be determined if we know how distant they are.

Mots clés: stars: distances; stars: kinematics; stars: evolution; stars: formation

Domaines: Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]; Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]

Phillip A. B. Galli, Ramachrisna Teixeira, C. Ducourant, Claude Bertout. Determination of kinematic distances of pre-main-sequence stars in star-forming regions. Star clusters: basic galactic building blocks throughout time and space, Proceedings of the International Astronomical Union, IAU Symposium, Rio de janeiro : Brésil (2009) Volume 266, p. 395-398, 2010, 2010, France. pp.395-398, ⟨10.1017/S1743921309991463⟩. ⟨hal-00522024⟩