Chemical similarities between galactic bulge and local thick disk red giants: O, Na, Mg, Al, Si, Ca, and Ti
Context. The formation and evolution of the Galactic bulge and its relationship with the other Galactic populations is still poorly understood. Aims. To establish the chemical differences and similarities between the bulge and other stellar populations, we performed an elemental abundance analysis of α-(O, Mg, Si, Ca, and Ti) and Z-odd (Na and Al) elements of red giant stars in the bulge as well as of local thin disk, thick disk and halo giants. Methods. We use high-resolution optical spectra...[Show more]
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|Source:||Astronomy and Astrophysics|
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