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Kinematic parameters and membership lists of open clusters in the Bordeaux Carte du Ciel zone

Published online by Cambridge University Press:  18 January 2010

Alberto Krone-Martins
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 1226, 05508-900, Cidade Universitária, São Paulo, Brazil Observatoire de Sciences d'Aquitaine, Université de Bordeaux 1, 2 rue de l'Observatoire, Floirac, France email: algol@astro.iag.usp.br
Caroline Soubiran
Affiliation:
Observatoire de Sciences d'Aquitaine, Université de Bordeaux 1, 2 rue de l'Observatoire, Floirac, France email: algol@astro.iag.usp.br
Ramachrisna Teixeira
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 1226, 05508-900, Cidade Universitária, São Paulo, Brazil
Christine Ducourant
Affiliation:
Observatoire de Sciences d'Aquitaine, Université de Bordeaux 1, 2 rue de l'Observatoire, Floirac, France email: algol@astro.iag.usp.br
Corresponding
E-mail address:
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Abstract

In the study of open clusters, the distinction between cluster and field members and the assignment of membership probabilities for each individual star in the relevant region are central issues. Here, we present an analysis based on the use of a fully automated method that relies on a hybrid heuristics, based on genetic algorithms and hill-climbing optimisation, as well as different probability distribution functions for the observables. We analysed the use of some variations for the parameterisation of those distribution functions. Finally, a catalogue comprising kinematic parameters and associated membership probability lists for all the open clusters in the Bordeaux PM2000 region was derived.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2010

References

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