Navegação Ciências Exatas e da Terra por Assunto "Russel (HR) and C-M diagrams"

Resultados 1-3 de 3

    • ESO 280-SC06 : a new globular cluster in the galaxy 

      Ortolani, Sergio; Bica, Eduardo Luiz Damiani; Barbuy, Beatriz (2000) [Artigo de periódico]
      By means of VI CCD photometry we identify a new globular cluster in the Galaxy: ESO 280−SC06. The images and Colour Magnitude Diagrams indicate that we are dealing with a sparsely populated globular cluster, showing a ...

    • HST observations of Terzan 1 : a second parameter globular cluster in the galactic bulge 

      Ortolani, Sergio; Barbuy, Beatriz; Bica, Eduardo Luiz Damiani; Renzini, Alvio; Marconi, Gianni; Gilmozzi, Roberto (1999) [Artigo de periódico]
      Hubble Space Telescope observations in the F555W and F814W bands are presented of the bulge globular cluster Terzan 1. This highly obscured cluster has the smallest projected distance to the Galactic center among all known ...

    • The metal-rich bulge globular cluster NGC 6401 

      Barbuy, Beatriz; Ortolani, Sergio; Bica, Eduardo Luiz Damiani; Desidera, S. (1999) [Artigo de periódico]
      We present V and I photometry for the bulge globular cluster NGC 6401 for the first time. The Colour-Magnitude Diagram reveals a red horizontal branch, and the cluster is metalrich ([Fe/H] ≈ -0.7). NGC 6401 is located at ...