Proc. IAU volume 13, issue S334, P281-282 2017 DOI: 10.1017/s1743921317007499 View full text
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Ioana Ciucă, Daisuke Kawata, Jane Lin, Luca Casagrande, George Seabroke, Mark Cropper

Abstract: AbstractWe investigate the vertical metallicity gradients of five mono-age stellar populations between 0 and 11 Gyr for a sample of 18 435 dwarf stars selected from the cross-matched Tycho-Gaia Astrometric Solution (TGAS) and RAdial Velocity Experiment (RAVE) Data Release 5. We find a correlation between the vertical metallicity gradients and age, with no vertical metallicity gradient in the youngest population and an increasingly steeper negative vertical metallicity gradient for the older stellar populations…

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