Red giants observed by CoRoT and APOGEE: The evolution of the Milky Way's radial metallicity gradient

F. Anders, C. Chiappini, I. Minchev +21

Using combined asteroseismic and spectroscopic observations of 418 red-giant stars close to the Galactic disc plane (6 kpc $<R_{\mathrm{Gal}}\lesssim 13$ kpc, $|Z_{\mathrm{Gal}}|<0.3$ kpc), w…