Navegação Ciências Exatas e da Terra por Autor "Pignatari, Marco"

Resultados 1-3 de 3

    • Chemical abundances in bright giants of the globular cluster M62 (NGC 6266) 

      Yong, David; Alves-Brito, Alan; Da Costa, Gary Stewart; Alonso Garcia, Javier; Karakas, Amanda I.; Pignatari, Marco; Roederer, Ian U.; Aoki, Wako; Fishlock, Cherie K.; Grundahl, Frank; Norris, John E. (2014) [Artigo de periódico]
      With the exception of Terzan 5, all the Galactic globular clusters that possess significant metallicity spreads, such as ω Cen and M22, are preferentially the more luminous clusters with extended horizontal branches. Here ...

    • 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 ...

    • UVES analysis of red giants in the bulge globular cluster NGC 6522 

      Barbuy, Beatriz; Cantelli, Elvis William Carvalho; Muniz, Leone V.; Souza, Stefano O.; Chiappini, C.C.M.; Hirschi, Raphael; Cescutti, Gabriele; Pignatari, Marco; Ortolani, Sergio; Kerber, Leandro de Oliveira; Maia, Francisco F. S.; Bica, Eduardo Luiz Damiani; Depagne, Éric (2021) [Artigo de periódico]
      Context. NGC 6522 is a moderately metal-poor bulge globular cluster ([Fe/H] ~ −1.0), and it is a well-studied representative among a number of moderately metal-poor blue horizontal branch clusters located in the bulge. The ...