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Alves Brito, A.Barbuy, B.Zoccali, ManuelaMinniti, D.Ortolani, S.Hill, V.Renzini, A.Pasquini, L.Bica, E.Rich, R. M.Meléndez, J.Momany, Y.[VLT-UVES abundance analysis of four giants in NGC 6553]

Context. Oxygen and zinc in the Galactic bulge are key elements for the understanding of the bulge chemical evolution. Oxygen-to-iron abundance ratios provide a most robust indicator of the star formation rate and chemical evolution of the bulge. Zinc is enhanced in metal-poor stars, behaving as ...


Da Silveira, C.R.Barbuy, B.Friaça, A.C.S.Hill, V.Zoccali, M.Rafelski, M.Gonzalez, O.A.Minniti, D.Renzini, A.Ortolani, S.[Oxygen and zinc abundances in 417 Galactic bulge red giants]Oxygen and zinc abundances in 417 Galactic bulge red giants

The Hubble Space Telescope/WFC3 multiband photometry spanning from the UV to the near-IR of four fields in the Galactic bulge, together with that for six template globular and open clusters, are used to photometrically tag the metallicity [Fe/H] of stars in these fields after proper-motion reject...


Renzini, A.Gennaro, M.Zoccali, M.Brown, T.M.Anderson, J.Minniti, D.Sahu, K.C.Valenti, E.Vandenberg, D.A.[The WFC3 Galactic Bulge Treasury Program: Relative Ages of Bulge Stars of High and Low Metallicity]The WFC3 Galactic Bulge Treasury Program: Relative Ages of Bulge Stars of High and Low Metallicity

We present the first stellar density profile of the Milky Way bulge that reaches latitude b = 0 degrees. The profile was derived by counting red clump stars within the colour-magnitude diagram that was constructed using the new PSF-fitting photometry from VISTA Variables in the Via Lactea (VVV) s...


Valenti, E.Zoccali, M.Gonzalez, O. A.Minniti, D.Alonso-García, J.Marchetti, E.Hempel, M.Renzini, A.Rejkuba, M.[Stellar density profile and mass of the Milky Way bulge from VVV data]Stellar density profile and mass of the Milky Way bulge from VVV data

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