The Gaia-ESO survey: Matching chemodynamical simulations to observations of the Milky Way

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dc.contributor.authorThompson B.B.
dc.contributor.authorFew C.G.
dc.contributor.authorBergemann M.
dc.contributor.authorGibson B.K.
dc.contributor.authorMacFarlane B.A.
dc.contributor.authorSerenelli A.
dc.contributor.authorGilmore G.
dc.contributor.authorRandich S.
dc.contributor.authorVallenari A.
dc.contributor.authorAlfaro E.J.
dc.contributor.authorBensby T.I.
dc.contributor.authorFrancois P.
dc.contributor.authorKorn A.J.
dc.contributor.authorBayo A.
dc.contributor.authorCarraro G.
dc.contributor.authorCasey A.R.
dc.contributor.authorCostado M.T.
dc.contributor.authorDonati P.
dc.contributor.authorFranciosini E.
dc.contributor.authorFrasca A.
dc.contributor.authorHourihane A.
dc.contributor.authorJofrè P.
dc.contributor.authorHill V.
dc.contributor.authorHeiter U.
dc.contributor.authorKoposov S.E.
dc.contributor.authorLanzafame A.
dc.contributor.authorLardo C.
dc.contributor.authorde Laverny P.
dc.contributor.authorLewis J.
dc.contributor.authorMagrini L.
dc.contributor.authorMarconi G.
dc.contributor.authorMasseron T.
dc.contributor.authorMonaco L.
dc.contributor.authorMorbidelli L.
dc.contributor.authorPancino E.
dc.contributor.authorPrisinzano L.
dc.contributor.authorRecio-Blanco A.
dc.contributor.authorSacco G.
dc.contributor.authorSousa S.G.
dc.contributor.authorTautvaišiene G.
dc.contributor.authorWorley C.C.
dc.contributor.authorZaggia S.
dc.date.accessioned2022-10-12T23:23:05Z
dc.date.available2022-10-12T23:23:05Z
dc.date.issued2018-01
dc.descriptionIndexación Scopuses
dc.description.abstractThe typical methodology for comparing simulated galaxies with observational surveys is usually to apply a spatial selection to the simulation to mimic the region of interest covered by a comparable observational survey sample. In this work, we compare this approach with a more sophisticated post-processing in which the observational uncertainties and selection effects (photometric, surface gravity and effective temperature) are taken into account. We compare a 'solar neighbourhood analogue' region in a model MilkyWay-like galaxy simulated with RAMSES-CH with fourth release Gaia-ESO survey data. We find that a simple spatial cut alone is insufficient and that the observational uncertainties must be accounted for in the comparison. This is particularly true when the scale of uncertainty is large compared to the dynamic range of the data, e.g. in our comparison, the [Mg/Fe] distribution is affected much more than the more accurately determined [Fe/H] distribution. Despite clear differences in the underlying distributions of elemental abundances between simulation and observation, incorporating scatter to our simulation results to mimic observational uncertainty produces reasonable agreement. The quite complete nature of the Gaia-ESO survey means that the selection function has minimal impact on the distribution of observed age and metal abundances but this would become increasingly more important for surveys with narrower selection functions. © 2017 The Author(s).es
dc.description.urihttps://academic-oup-com.recursosbiblioteca.unab.cl/mnras/article/473/1/185/4111160
dc.identifier.citationMonthly Notices of the Royal Astronomical Society Volume 473, Issue 1, Pages 185 - 1971 January 2018es
dc.identifier.doi10.1093/MNRAS/STX2316
dc.identifier.issn00358711
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/24249
dc.language.isoenes
dc.publisherOxford University Presses
dc.rights.licenseCC BY 4.0
dc.subjectGaiaes
dc.subjectBiomechanicses
dc.subjectLAMOSTes
dc.subjectGalaxies: evolutiones
dc.subjectGalaxies: formationes
dc.subjectGalaxy: abundanceses
dc.subjectMethods: numericales
dc.titleThe Gaia-ESO survey: Matching chemodynamical simulations to observations of the Milky Wayes
dc.typeArtículoes
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