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The Gaia-ESO Survey: the selection function of the Milky Way field stars
Lund Observ, Dept Astron & Theoret Phys, Lund Observ, Box 43, SE-22100 Lund, Sweden.;Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Al 3, LT-10222 Vilnius, Lithuania..
Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England..
Lund Observ, Dept Astron & Theoret Phys, Lund Observ, Box 43, SE-22100 Lund, Sweden..
Lund Observ, Dept Astron & Theoret Phys, Lund Observ, Box 43, SE-22100 Lund, Sweden..
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2016 (English)In: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 460, no 1, 1131-1146 p.Article in journal (Refereed) PublishedText
Abstract [en]

The Gaia-ESO Survey was designed to target all major Galactic components (i.e. bulge, thin and thick discs, halo and clusters), with the goal of constraining the chemical and dynamical evolution of the Milky Way. This paper presents the methodology and considerations that drive the selection of the targeted, allocated and successfully observed Milky Way field stars. The detailed understanding of the survey construction, specifically the influence of target selection criteria on observed Milky Way field stars is required in order to analyse and interpret the survey data correctly. We present the target selection process for the Milky Way field stars observed with Very Large Telescope/Fibre Large Array Multi Element Spectrograph and provide the weights that characterize the survey target selection. The weights can be used to account for the selection effects in the Gaia-ESO Survey data for scientific studies. We provide a couple of simple examples to highlight the necessity of including such information in studies of the stellar populations in the Milky Way.

Place, publisher, year, edition, pages
2016. Vol. 460, no 1, 1131-1146 p.
Keyword [en]
techniques: spectroscopic, surveys, stars: general, Galaxy: evolution
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-301421DOI: 10.1093/mnras/stw1011ISI: 000379835200077OAI: oai:DiVA.org:uu-301421DiVA: diva2:954618
Funder
Knut and Alice Wallenberg FoundationSwedish National Space BoardEU, European Research Council, 320360
Available from: 2016-08-23 Created: 2016-08-23 Last updated: 2016-08-23Bibliographically approved

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Korn, Andreas J.
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Theoretical Astrophysics
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