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UV Spectroscopic Indices of Galactic Globular Clusters

  • Javier Morales-Hernández
  • Miguel Chávez
  • Emanuele Bertone
  • Alberto Buzzoni
  • Alessandro Bressan
Conference paper
Part of the Astrophysics and Space Science Proceedings book series (ASSSP)

Summary

We present the calculation of a set of 12 mid-ultraviolet (1900-3200 Å) spectroscopic indices for a sample of 15 galactic globular clusters (GGC) observed with the International Ultraviolet Explorer (IUE). We explore the dependence of the indices on age and metal abundance. We found that five indices (BL 2538, Fe II 2609, Mg II 2800, Mg I 2852 and Mg Wide) display a remarkably good correlation with [Fe/H]. With respect to age, only one index (BL 2740) shows a good correlation. Results from theoretical simple stellar populations well reproduce the global trends of indices vs. [Fe/H].

Keywords

Star Formation History Population Synthesis International Ultraviolet Explorer Galactic Globular Cluster Synthesis Code 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Bressan, A., Chiosi, C., & Fagotto, F. 1994, apjs, 94, 63CrossRefADSGoogle Scholar
  2. Buzzoni, A. 1989, apjs, 71, 817CrossRefADSGoogle Scholar
  3. Chávez, M., Bertone, E., Buzzoni, A., Franchini, M., Malagnini, M. L., Morossi, C., & Rodriguez-Merino, L. H. 2007, apj, 657, 1046CrossRefADSGoogle Scholar
  4. Fanelli, M. N., O’Connell, R. W., Burstein, D., & Wu, C. 1990, apj, 364, 272CrossRefADSGoogle Scholar
  5. Harris, W. 1996, aj, 112, 1487CrossRefADSGoogle Scholar
  6. Rodríguez-Merino, L. H., Chavez, M., Bertone, E., & Buzzoni, A. 2005, apj, 626, 411CrossRefADSGoogle Scholar
  7. Salaris, M., & Weiss, A. 2002, A&A, 388, 492CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag New York 2009

Authors and Affiliations

  • Javier Morales-Hernández
    • 1
    • 2
  • Miguel Chávez
    • 2
    • 3
  • Emanuele Bertone
    • 2
  • Alberto Buzzoni
    • 4
  • Alessandro Bressan
    • 5
  1. 1.Facultad de Ciencias Físico-MatemáticasBenemérita Universidad Autónoma de PueblaA.P. 72000 PueblaMéxico
  2. 2.Instituto Nacional de AstrofísicaÓptica y Electrónica72000 PueblaMéxico
  3. 3.Instituto de Astronomia y MeteorologíaUniversidad de GuadalajaraMexico
  4. 4.INAF-Osservatorio Astronomico di BolognaItalia
  5. 5.INAF-Osservatorio Astronomico di PadovaItalia

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