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Evolutionary Synthesis Models


  1. The origins: Form UV to Radio

    These models where performed originally by José Miguel Mas-Hesse and Phillipe Arnault under supervision of Daniel Kunth in their respective Ph.D. in 1991 (defended in Madrid and Paris).

  2. Extensions: High energy and new inputs

  3. Confidence levels

    We had updated (again) the code to include an estimation of the dispersion and confidence levels of the different observables. That are the results you can find here. The theory and background has been establish in the following series of papers. But we want to stress that more revisions to synthesis models must be done. See On some Uncertainties in Evolutionary Synthesis Models, Cerviño & Valls-Gabaud ASP Conference Proceedings, Vol. 274, 560 (ps.gz file, 58Kb) for an overview

    More info in:

    1. Confidence levels of evolutionary synthesis models: Qualitative analysis of the dispersion of Synthesis models due to IMF fluctuations.
      Full paper
      Reference: Cerviño, M., Luridiana, V. & Castander, F.J., 2000, A&Aletters, 360, L5

    2. Confidence levels of evolutionary synthesis models II. On sampling and Poissonian fluctuations: Quantitative analysis and complete theoretical background valid to any synthesis model (output results here :)
      Full paper
      Reference: Cerviño, M., Valls-Gabaud, D., Luridiana, V. & Mas-Hesse, J.M., 2002, A&A 381, 51

    3. Confidence levels of evolutionary synthesis models III. On time-integrated quantities: Study of the problems related with the time-step and time interpolation in isochrones. Click here to access to the output tables and parabolic subroutine.
      Full paper
      Reference: Cerviño, M., Gómez-Flechoso, M.A., Castander, F.J., Schaerer, D., Mollá, M., Knödlseder, J. & Luridiana, V. 2001, A&A 376, 422.

    4. On the effect of discrete numbers of stars in chemical evolution models: Effects of the IMF sampling in chemical Evolution models
      Full paper
      Reference: Cerviño, M. & Mollá, M. 2002, A&A 394, 525.

    5. On biases in the predictions of stellar population synthesis models: When the results of synthesis models are biased and not longer apply.
      Full paper
      Reference: Cerviño, M. & Valls-Gabaud, D. 2003, M.N.R.A.S. 338, 481.

    6. On the limits of synthesis models to obtain the properties of stellar clusters: The Lowest Luminosity Limit: Absolute limits for the use of synthesis models in the standard way.
      Full paper
      Reference: Cerviño, M. & Luridiana, V. (submitted to A&A; astro-ph/0304061; see also astro-ph/0302577

    7. On emission-line spectra obtained from evolutionary synthesis models I. Dispersion in the ionizing flux and Lowest Luminosity Limits: First step for the study of the sampling problem to the emission-line diagnostic diagrams. Go to Database to access to the output tables.
      Full paper
      Reference: Cerviño, M., Luridiana, V., Pérez, E., Vílchez, J.M. & Valls-Gabaud, D. (accepted in A&A; astro-ph/0304062)

  4. Public Release:

    Currently, we are working on an update of the code, that will we written in ANSI-C and will be available to the community (together with complete manuals) during 2003 (tentative date).

    Finally, We want thanks to Jesús Maíz-Apellaníz their continuously helps to improve this models.

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    Justicia, no venganza

    Justice, not revenge
    We thanks to the LAEFF for the space for host this server

    Miguel Cerviño 2003