Do open clusters have distinguishable chemical signatures? - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2015

Do open clusters have distinguishable chemical signatures?

S. Blanco-Cuaresma
  • Fonction : Auteur
C. Soubiran
U., Heiter
  • Fonction : Auteur

Résumé

Past studies have already shown that stars in open clusters are chemically homogeneous (e.g. De Silva et al. 2006, 2007 and 2009). These results support the idea that stars born from the same giant molecular cloud should have the same chemical composition. In this context, the chemical tagging technique was proposed by Freeman & Bland-Hawthorn 2002. The principle is to recover disrupted stellar clusters by looking only to the stellar chemical composition. In order to evaluate the feasibility of this approach, it is necessary to test if we can distinguish between stars born from different molecular clouds. For this purpose, we studied the chemical composition of stars in 32 old and intermediate-age open clusters, and we applied machine learning algorithms to recover the original cluster by only considering the chemical signatures.
Fichier non déposé

Dates et versions

hal-01197369 , version 1 (11-09-2015)

Identifiants

Citer

S. Blanco-Cuaresma, C. Soubiran, U., Heiter. Do open clusters have distinguishable chemical signatures?. 2015arXiv150706294B - Published on "The Milky Way Unravelled by Gaia: GREAT Science from the Gaia Data Release" (EAS Publications series). EAS Publications Series - Vol. 67-68 (2014) - Barcelona, Spain, December 1–5, 2014 - Update: one reference correction; doi:10.1051/eas/1567023, Dec 2014, Barcelone, Spain. ⟨hal-01197369⟩

Collections

INSU CNRS L3AB
74 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More