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dc.contributor.authorSacco, G. G.
dc.contributor.authorMorbidelli, L.
dc.contributor.authorFranciosini, E.
dc.contributor.authorMaiorca, E.
dc.contributor.authorRandich, S.
dc.contributor.authorModigliani, A.
dc.contributor.authorGilmore, G.
dc.contributor.authorAsplund, M.
dc.contributor.authorBinney, J.
dc.contributor.authorBonifacio, P.
dc.contributor.authorDrew, J.E.
dc.contributor.authorFeltzing, S.
dc.contributor.authorFerguson, A.
dc.contributor.authorJeffries, R.
dc.contributor.authorMicela, G.
dc.contributor.authorNegueruela, I.
dc.contributor.authorPrusti, T.
dc.contributor.authorRix, H. W.
dc.contributor.authorVallenari, A.
dc.contributor.authorAlfaro, E.
dc.contributor.authorPrieto, C. Allende
dc.contributor.authorBabusiaux, C.
dc.contributor.authorBensby, T.
dc.contributor.authorBlomme, R.
dc.contributor.authorBragaglia, A.
dc.contributor.authorFlaccomio, E.
dc.contributor.authorFrancois, P.
dc.contributor.authorHambly, N.
dc.contributor.authorIrwin, M.
dc.contributor.authorKoposov, S.
dc.contributor.authorKorn, A.
dc.contributor.authorLanzafame, A.
dc.contributor.authorPancino, E.
dc.contributor.authorRecio-Blanco, A.
dc.contributor.authorSmiljanic, R.
dc.contributor.authorVan Eck, S.
dc.contributor.authorWalton, N.
dc.contributor.authorBergemann, M.
dc.contributor.authorCostado, M. T.
dc.contributor.authorDe Laverny, P.
dc.contributor.authorHeiter, U.
dc.contributor.authorHill, V.
dc.contributor.authorHourihane, A.
dc.contributor.authorJackson, R.
dc.contributor.authorJofre, P.
dc.contributor.authorLewis, J.
dc.contributor.authorLind, K.
dc.contributor.authorLardo, C.
dc.contributor.authorMagrini, L.
dc.contributor.authorMasseron, T.
dc.contributor.authorPrisinzano, L.
dc.contributor.authorWorley, C.
dc.date.accessioned2015-01-05T14:32:43Z
dc.date.available2015-01-05T14:32:43Z
dc.date.issued2014-05
dc.identifier.citationSacco , G G , Morbidelli , L , Franciosini , E , Maiorca , E , Randich , S , Modigliani , A , Gilmore , G , Asplund , M , Binney , J , Bonifacio , P , Drew , J E , Feltzing , S , Ferguson , A , Jeffries , R , Micela , G , Negueruela , I , Prusti , T , Rix , H W , Vallenari , A , Alfaro , E , Prieto , C A , Babusiaux , C , Bensby , T , Blomme , R , Bragaglia , A , Flaccomio , E , Francois , P , Hambly , N , Irwin , M , Koposov , S , Korn , A , Lanzafame , A , Pancino , E , Recio-Blanco , A , Smiljanic , R , Van Eck , S , Walton , N , Bergemann , M , Costado , M T , De Laverny , P , Heiter , U , Hill , V , Hourihane , A , Jackson , R , Jofre , P , Lewis , J , Lind , K , Lardo , C , Magrini , L , Masseron , T , Prisinzano , L & Worley , C 2014 , ' The Gaia-ESO survey : Processing FLAMES-UVES spectra ' , Astronomy and Astrophysics , vol. 565 , A113 . https://doi.org/10.1051/0004-6361/201423619
dc.identifier.issn0004-6361
dc.identifier.otherPURE: 7921813
dc.identifier.otherPURE UUID: 7adb817e-f2aa-4e5b-a21e-646febce57a0
dc.identifier.otherScopus: 84901364963
dc.identifier.urihttp://hdl.handle.net/2299/15057
dc.descriptionDate of Acceptance: 19/03/2014
dc.description.abstractThe Gaia-ESO Survey is a large public spectroscopic survey that aims to derive radial velocities and fundamental parameters of about 105 Milky Way stars in the field and in clusters. Observations are carried out with the multi-object optical spectrograph FLAMES, using simultaneously the medium-resolution (R ~ 20 000) GIRAFFE spectrograph and the high-resolution (R ~ 47 000) UVES spectrograph. In this paper we describe the methods and the software used for the data reduction, the derivation of the radial velocities, and the quality control of the FLAMES-UVES spectra. Data reduction has been performed using a workflow specifically developed for this project. This workflow runs the ESO public pipeline optimizing the data reduction for the Gaia-ESO Survey, automatically performs sky subtraction, barycentric correction and normalisation, and calculates radial velocities and a first guess of the rotational velocities. The quality control is performed using the output parameters from the ESO pipeline, by a visual inspection of the spectra and by the analysis of the signal-to-noise ratio of the spectra. Using the observations of the first 18 months, specifically targets observed multiple times at different epochs, stars observed with both GIRAFFE and UVES, and observations of radial velocity standards, we estimated the precision and the accuracy of the radial velocities. The statistical error on the radial velocities is σ ~ 0.4 km s-1 and is mainly due to uncertainties in the zero point of the wavelength calibration. However, we found a systematic bias with respect to the GIRAFFE spectra (~0.9 km s-1) and to the radial velocities of the standard stars (~0.5 km s-1) retrieved from the literature. This bias will be corrected in the future data releases, when a common zero point for all the set-ups and instruments used for the survey is be established.en
dc.format.extent11
dc.language.isoeng
dc.relation.ispartofAstronomy and Astrophysics
dc.rights/dk/atira/pure/core/openaccesspermission/open
dc.subjectMethods: data analysis
dc.subjectStars: general
dc.subjectSurveys
dc.subjectTechniques: radial velocities
dc.subjectTechniques: spectroscopic
dc.subjectAstronomy and Astrophysics
dc.titleThe Gaia-ESO survey : Processing FLAMES-UVES spectraen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Accepted Version
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1051/0004-6361/201423619
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeopenAccess


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