[en] As part of the Gaia-ESO Survey (GES), a number of clusters will be observed that
were chosen speci cally 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 di erent 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
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Blomme, R.; Observatoire Royal de Belgique - ORB
Fremat, Y.; Observatoire Royal de Belgique - ORB
Gosset, Eric ; Université de Liège - ULiège > Groupe d'astrophysique des hautes énergies (GAPHE)
Herrero, A.; instituto de astrofisica de Canarias, Spain
Lobel, A.; Observatoire Royal de Belgique - ORB
Maiz Apellaniz, J.; CSIC, Granada, Spain
Morel, Thierry ; Université de Liège - ULiège > Groupe d'astrophysique des hautes énergies (GAPHE)
