dc.contributor.author | Onal, Özgecan | |
dc.contributor.author | Yaz, E. | |
dc.contributor.author | Karaali, S. | |
dc.contributor.author | Gilmore, Gerard | |
dc.contributor.author | Seabroke, G. M. | |
dc.contributor.author | Coskunoglu, B. | |
dc.contributor.author | Ak, Serap | |
dc.contributor.author | Bilir, S. | |
dc.date.accessioned | 2021-03-02T20:43:38Z | |
dc.date.available | 2021-03-02T20:43:38Z | |
dc.identifier.citation | Coskunoglu 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.issn | 0035-8711 | |
dc.identifier.other | vv_1032021 | |
dc.identifier.other | av_036673a0-ccdd-4073-8116-66e996f44757 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12627/8231 | |
dc.identifier.uri | https://doi.org/10.1111/j.1365-2966.2011.19925.x | |
dc.description.abstract | We 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.iso | eng | |
dc.subject | Temel Bilimler | |
dc.subject | Astronomi ve Astrofizik | |
dc.subject | Fizik | |
dc.subject | Temel Bilimler (SCI) | |
dc.subject | Uzay bilimi | |
dc.subject | ASTRONOMİ VE ASTROFİZİK | |
dc.title | Local stellar kinematics from RAVE data - II. Radial metallicity gradient | |
dc.type | Makale | |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | |
dc.contributor.department | İstanbul Üniversitesi , Fen Fakültesi , Astronomi Ve Uzay Bilimleri Bölümü | |
dc.identifier.volume | 419 | |
dc.identifier.startpage | 2844 | |
dc.identifier.endpage | 2854 | |
dc.contributor.firstauthorID | 2219359 | |