Navegação Ciências Exatas e da Terra por Autor "Gómez, Ana"

Resultados 1-3 de 3

    • High-resolution abundance analysis of red giants in the globular cluster NGC 6522 

      Barbuy, Beatriz; Chiappini, C.C.M.; Cantelli, Elvis William Carvalho; Depagne, Éric; Pignatari, Marco; Hirschi, Raphael; Cescutti, Gabriele; Ortolani, Sergio; Hill, Vanessa; Zoccali, Manuela; Minniti, Dante; Trevisan, Marina; Bica, Eduardo Luiz Damiani; Gómez, Ana (2014) [Artigo de periódico]
      Context. The [Sr/Ba] and [Y/Ba] scatter observed in some galactic halo stars that are very metal-poor and in a few individual stars of the oldest known Milky Way globular cluster NGC 6522 have been interpreted as evidence ...

    • NGC 6558 : a blue horizontal branch moderately metal-poor globular cluster in the bulge 

      Barbuy, Beatriz; Zoccali, Manuela; Ortolani, Sergio; Minniti, Dante; Hill, Vanessa; Renzini, Alvio; Bica, Eduardo Luiz Damiani; Gómez, Ana (2007) [Artigo de periódico]
      We present, for the first time, a detailed abundance analysis of five giant stars in the moderately metal-poor bulge globular cluster NGC 6558. Spectra have been obtained at the VLT with the multifiber spectrograph FLAMES ...

    • VLT-FLAMES analysis of 8 giants in the bulge metal-poor globular cluster NGC 6522 : oldest cluster in the Galaxy? Analysis of 8 giants in NGC 6522 

      Barbuy, Beatriz; Zoccali, Manuela; Ortolani, Sergio; Hill, Vanessa; Minniti, Dante; Bica, Eduardo Luiz Damiani; Renzini, Alvio; Gómez, Ana (2009) [Artigo de periódico]
      Context. NGC 6522 has been the first metal-poor globular cluster identified in the bulge by Baade. Despite its importance, very few high-resolution abundance analyses of stars in this cluster are available. The bulge ...