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The near-IR Ca II Triplet: Empirical Calibration and Stellar Populations Synthesis Models

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Highlights of Spanish Astrophysics II

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Abstract

We present a new stellar library of 706 stars in the near-infrared spectral region (λλλ8348–9020 Å, FWHM = 1.5 Å) covering a wide range of atmospheric parameters. The library is developed for the empirical calibration of the Ca II triplet and stellar populations synthesis modeling. We conclude that the Can strength saturates for stellar populations with [Fe/H] > −0.5, showing a mild dependence on metallicity but a very strong sensitivity to the initial mass function.

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References

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Authors and Affiliations

  1. Dept. Astrofísica, Univ. Complutense, E-28040, Madrid, Spain

    A. J. Cenarro, J. Gorgas & N. Cardiel

  2. Dept. of Physics, Univ. of Durham, UK

    A. Vazdekis

  3. School of Physics and Astronomy, Univ. of Nottingham, UK

    R. F. Peletier

  4. Observatorio de Calar Alto, Almería, Spain

    S. Pedraz & F. Prada

Authors
  1. A. J. Cenarro
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  2. J. Gorgas
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  3. N. Cardiel
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  4. A. Vazdekis
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  5. R. F. Peletier
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  6. S. Pedraz
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  7. F. Prada
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Editor information

Editors and Affiliations

  1. Department of Astrophysics, Universidad Complutense, Madrid, Spain

    Jaime Zamorano , Javier Gorgas  & Jesús Gallego ,  & 

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© 2001 Springer Science+Business Media Dordrecht

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Cenarro, A.J. et al. (2001). The near-IR Ca II Triplet: Empirical Calibration and Stellar Populations Synthesis Models. In: Zamorano, J., Gorgas, J., Gallego, J. (eds) Highlights of Spanish Astrophysics II. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1776-2_32

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  • DOI: https://doi.org/10.1007/978-94-017-1776-2_32

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-90-481-5705-1

  • Online ISBN: 978-94-017-1776-2

  • eBook Packages: Springer Book Archive

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