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NGC 3293 revisited by the Gaia-ESO Survey

Published online by Cambridge University Press:  23 January 2015

Thierry Semaan ,
Thierry Morel ,
Eric Gosset ,
Juan Zorec ,
Yves Frémat ,
Ronny Blomme  and
Alex Lobel
Thierry Semaan
Affiliation:
ULg, Institut d'Astrophysique et de Géophysique, Liège, Belgium email: thierry.semaan@ulg.ac.be
Thierry Morel
Affiliation:
ULg, Institut d'Astrophysique et de Géophysique, Liège, Belgium email: thierry.semaan@ulg.ac.be
Eric Gosset
Affiliation:
ULg, Institut d'Astrophysique et de Géophysique, Liège, Belgium email: thierry.semaan@ulg.ac.be
Juan Zorec
Affiliation:
Institut d'Astrophysique de Paris, CNRS (UMR 7095), Paris, France & Université Pierre et Marie Curie (UMR 7095), Paris, France
Yves Frémat
Affiliation:
Royal Observatory of Belgium, Brussels, Belgium
Ronny Blomme
Affiliation:
Royal Observatory of Belgium, Brussels, Belgium
Alex Lobel
Affiliation:
Royal Observatory of Belgium, Brussels, Belgium
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Abstract

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In the framework of the Gaia-ESO survey we have determined the fundamental parameters of a large number of B-type stars in the Galactic, young open cluster NGC 3293. The determination of the stellar parameters is based on medium-resolution spectra obtained with FLAMES/GIRAFFE at ESO-VLT. As a second step, we adopted the accurate parameters to determine the chemical abundances of these hot stars. We present a comparison of our results with those obtained by the 'VLT-FLAMES survey of massive stars' (Evans et al. 2005). Our study increases the number of objects analysed and provides an extended view of this cluster.

Keywords

Massive StarsFundamental parametersChemical abundances

References

Asplund, M., Grevesse, N., Sauval, A. J., & Scott, P. 2009, ARA&A 47, 481Google Scholar
Evans, C. J., Smartt, S. J., Lee, J.-K., et al. 2005, A&A 437, 467Google Scholar
Frémat, Y., Neiner, C., Hubert, A.-M., et al. 2006, A&A 451, 1053Google Scholar
Hunter, I., Brott, I., Langer, N., et al. 2009, A&A 496, 841Google Scholar