OCCASO - III. Iron peak and α elements of 18 open clusters. Comparison with chemical evolution models and field stars

OCCASO - III. Iron peak and α elements of 18 open clusters. Comparison with chemical evolution models and field starsCasamiquela, L.Blanco-Cuaresma, SergiCarrera, R.Balaguer-Núñez, L.Jordi, C.Anders, F.Chiappini, C.Carbajo-Hijarrubia, J.Aguado, D. S.del Pino, A.Díaz-Pérez, L.Gallart, C.Pancino, E.DOI: info:10.1093/mnras/stz2595v. 4901821–1842
Casamiquela, L., Blanco-Cuaresma, Sergi, Carrera, R., Balaguer-Núñez, L., Jordi, C., Anders, F., Chiappini, C., Carbajo-Hijarrubia, J., Aguado, D. S., del Pino, A., Díaz-Pérez, L., Gallart, C., and Pancino, E. 2019. "OCCASO - III. Iron peak and α elements of 18 open clusters. Comparison with chemical evolution models and field stars." Monthly Notices of the Royal Astronomical Society 490:1821– 1842. https://doi.org/10.1093/mnras/stz2595
ID: 154540
Type: article
Authors: Casamiquela, L.; Blanco-Cuaresma, Sergi; Carrera, R.; Balaguer-Núñez, L.; Jordi, C.; Anders, F.; Chiappini, C.; Carbajo-Hijarrubia, J.; Aguado, D. S.; del Pino, A.; Díaz-Pérez, L.; Gallart, C.; Pancino, E.
Abstract: The study of open-cluster chemical abundances provides insights on stellar nucleosynthesis processes and on Galactic chemo-dynamical evolution. 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 μ-Leo. We investigate the dependence of [X/Fe] with metallicity, Galactocentric radius (6.5 kpc GC GC and |z| obtained for clusters and for field stars.