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The Gaia-ESO Survey and Massive Stars

Published online by Cambridge University Press:  23 January 2015

Ronny Blomme ,
Yves Frémat ,
Eric Gosset ,
Artemio Herrero ,
Alex Lobel ,
Jesús Maíz Apellániz ,
Thierry Morel ,
Ignacio Negueruela ,
Thierry Semaan  and
Sergio Simón-Díaz
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Ronny Blomme
Affiliation:
Royal Observatory of Belgium email: [email protected]
Yves Frémat
Affiliation:
Royal Observatory of Belgium email: [email protected]
Eric Gosset
Affiliation:
Université de Liège, Belgium
Artemio Herrero
Affiliation:
Instituto de Astrofísica de Canarias, Tenerife, Spain Universidad de La Laguna, La Laguna, Spain
Alex Lobel
Affiliation:
Royal Observatory of Belgium email: [email protected]
Jesús Maíz Apellániz
Affiliation:
Instituto de Astrofísica de Andalucía-CSIC, Granada, Spain
Thierry Morel
Affiliation:
Université de Liège, Belgium
Ignacio Negueruela
Affiliation:
Universidad de Alicante, Spain
Thierry Semaan
Affiliation:
Université de Liège, Belgium
Sergio Simón-Díaz
Affiliation:
Instituto de Astrofísica de Canarias, Tenerife, Spain Universidad de La Laguna, La Laguna, Spain
Delia Volpi
Affiliation:
Royal Observatory of Belgium email: [email protected]
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Abstract

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As part of the Gaia-ESO Survey (GES), a number of clusters will be observed that were chosen specifically for their massive-star content. We report on the procedures we followed to determine the stellar parameters from the massive-star spectra of this survey. We intercompare the results from the different techniques used by the nodes of our group to determine these parameters and discuss some of the problems encountered. We present preliminary results for NGC 6705, NGC 3293, and Trumpler 14. We study microturbulence in A-type stars, we use the repeat observation to investigate binarity, and we determine cluster membership from the radial velocity information. The large number of massive-star spectra obtained by the Gaia-ESO Survey will allow us to critically test stellar evolution modelling.

Keywords

surveysstars: abundancesstars: atmospheresbinaries: spectroscopicstars: early-typestars: statisticsopen clusters and associations: Trumpler 14NGC 3293NGC 6705
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Issue S307: New windows on massive stars: asteroseismology, interferometry, and spectropolarimetry , June 2014 , pp. 88 - 89
Copyright
Copyright © International Astronomical Union 2015 

References

Langer, N. & Kudritzki, R. P. 2014, A&A 564, A52Google Scholar