Abundances for stars in 18 open clusters

In this paper we present an extended abundance analysis of 10 species (Fe, Ni, Cr, V, Sc, Si, Ca, Ti, Mg, O) for red giant stars in 18 OCCASO clusters. This represents a homogeneous sample regarding the instrument features, method, line list and solar abundances from confirmed member stars.

We perform an extensive comparison with previous results in the literature, and in particular with the Gaia FGK Benchmark stars Arcturus and mu Leo. We investigate the dependence of [X/Fe] with metallicity, Galactocentric radius (6.5kpc<RGC<11kpc), age (0.3Gyr<Age<10Gyr), and height above the plane (|z|<1000pc). We discuss the observational results in the chemo-dynamical framework, and the radial migration impact when comparing with chemical evolution models.