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dc.contributor.authorOnal, Özgecan
dc.contributor.authorYaz, E.
dc.contributor.authorKaraali, S.
dc.contributor.authorGilmore, Gerard
dc.contributor.authorSeabroke, G. M.
dc.contributor.authorCoskunoglu, B.
dc.contributor.authorAk, Serap
dc.contributor.authorBilir, S.
dc.date.accessioned2021-03-02T20:43:38Z
dc.date.available2021-03-02T20:43:38Z
dc.identifier.citationCoskunoglu B., Ak S., Bilir S., Karaali S., Onal Ö., Yaz E., Gilmore G., Seabroke G. M. , "Local stellar kinematics from RAVE data - II. Radial metallicity gradient", MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, cilt.419, ss.2844-2854, 2012
dc.identifier.issn0035-8711
dc.identifier.othervv_1032021
dc.identifier.otherav_036673a0-ccdd-4073-8116-66e996f44757
dc.identifier.urihttp://hdl.handle.net/20.500.12627/8231
dc.identifier.urihttps://doi.org/10.1111/j.1365-2966.2011.19925.x
dc.description.abstractWe investigate radial metallicity gradients for a sample of dwarf stars from the RAdial Velocity Experiment (RAVE) Data Release 3 (DR3). We select a total of approximately 17 000 F-type and G-type dwarfs, using a selection of colour, log g and uncertainty in the derived space motion, and calculate for each star a probabilistic (kinematic) population assignment to a thick or thin disc using space motion and additionally another (dynamical) assignment using stellar vertical orbital eccentricity. We additionally subsample by colour, to provide samples biased toward young thin-disc and older thin-disc stars. We derive a metallicity gradient as a function of Galactocentric radial distance, i.e. d[M/H]/dRm=-0.051 +/- 0.005 dex kpc-1, for the youngest sample, F-type stars with vertical orbital eccentricities e(v) <= 0.04. Samples biased toward older thin-disc stars show systematically shallower abundance gradients.
dc.language.isoeng
dc.subjectTemel Bilimler
dc.subjectAstronomi ve Astrofizik
dc.subjectFizik
dc.subjectTemel Bilimler (SCI)
dc.subjectUzay bilimi
dc.subjectASTRONOMİ VE ASTROFİZİK
dc.titleLocal stellar kinematics from RAVE data - II. Radial metallicity gradient
dc.typeMakale
dc.relation.journalMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
dc.contributor.departmentİstanbul Üniversitesi , Fen Fakültesi , Astronomi Ve Uzay Bilimleri Bölümü
dc.identifier.volume419
dc.identifier.startpage2844
dc.identifier.endpage2854
dc.contributor.firstauthorID2219359


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