Navegação por Autor "Jablonka, Pascale"

Resultados 1-5 de 5

    • Ages and metallicities of m31 star clusters 

      Jablonka, Pascale; Alloin, Danielle Marie; Bica, Eduardo Luiz Damiani (1992) [Artigo de periódico]
      We present spectrophotometric data for 7 globular clusters and 2 open clusters in M31. The wide wavelength range available allows one to derive with confidence reddening, metallicity and age. It appears that the foreground ...

    • Metallicity distribution of bulge globular clusters in M31 

      Jablonka, Pascale; Bica, Eduardo Luiz Damiani; Bonatto, Charles Jose; Bridges, Terry J.; Langlois, Maud; Carter, Dave (1998) [Artigo de periódico]
      This paper presents 3600—5400 Å integrated spectra of 19 globular clusters (or candidates) projected on the central regions of M31, r ≤ 5.3' ( ≈ 1.2 kpc). We check the cluster nature of these objects, and derive their ages, ...

    • Spectrophotometry of globular clusters in NGC 5128 (centaurus a) : determination of their metallicities 

      Bica, Eduardo Luiz Damiani; Jablonka, Pascale; Pelat, D.; Alloin, Danielle Marie (1996) [Artigo de periódico]
      We have carried out spectrophotometry in the range 3600–9700Å of five globular clusters in NGC 5128 for which previous photometric studies suggested a high metal content. We compare the equivalent widths of a set of metallic ...

    • Stellar population analysis of the red and blue galaxies in the distant cluster Abell 370 

      Jablonka, Pascale; Alloin, Danielle Marie; Bica, Eduardo Luiz Damiani (1990) [Artigo de periódico]
      In this paper, we apply a population synthesis method based on star cluster integrated spectral properties to members of the distant galaxy cluster Abell 370. Within boxes defined from magnitude vs colour diagrams, we have ...

    • Super metal-rich clusters g158 and g177 in m31 : clues on the inner bulge/disc transition 

      Bica, Eduardo Luiz Damiani; Jablonka, Pascale; Santos Junior, Joao Francisco Coelho dos; Alloin, Danielle Marie; Dottori, Horacio Alberto (1992) [Artigo de periódico]
      The star clusters G 158 and G 177, located at projected distances smaller than 1.5 kpc from the semi-stellar nucleus of M 31, show spectra extreme in absorption-line strengths, comparable to those from the nuclei of giant ...