The decreasing value of with increasing metallicity is observed in all the components, while our value steadily increases with increasing metallicity in the local disk and the bulge instead. The trends of V and Co in the bulge appear to be even more enhanced, although within the uncertainties. trend shows a hint of an enhancement in the local thick disk. shows a separation between the disk components, being more enhanced in the thick disk. The thin and thick disks were separated according to their metallicity,, as well as proper motions and the radial velocities from Gaia DR2. Additionally, we apply non-local thermodynamic equilibrium corrections to the ratios and. The abundances are measured using Spectroscopy Made Easy (SME). We use high-resolution optical spectra of 291 K giants in the local disk mostly obtained by the FIES at NOT (signal-to-noise ratio (S/N) of 80–100) and 45 K giants in the bulge obtained by the UVES/FLAMES at VLT (S/N of 10–80). These abundances can provide additional observational constraints for Galaxy formation and chemical evolution models, and help us to understand whether the bulge has emerged from the thick disk or not. Our goal was to measure the abundances of six iron-peak elements (Sc, V, Cr, Mn, Co, and Ni) in the local thin and thick disks and in the bulge. Observations of the X-shaped bulge, cylindrical stellar motions, and the presumed existence of a fraction of young stars in the bulge have suggested that it formed through secular evolution of the disk and not through gas dissipation and/or mergers, as thought previously.Īims. The formation and evolution of the Galactic bulge and the Milky Way is still a debated subject. Lund Observatory, Department of Astronomy and Theoretical Physics, Lund University,Į-mail: de la Côte d’Azur, Boulevard de l’Observatoire,Ĭontext. Astronomical objects: linking to databases.Including author names using non-Roman alphabets.Suggested resources for more tips on language editing in the sciences Punctuation and style concerns regarding equations, figures, tables, and footnotes
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