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    Automatic Observation Rendering (AMORE). I. On a synthetic stellar population's colour-magnitude diagram

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    Author
    Ng, Y. K.
    Brogt, E.
    Chiosi, C.
    Bertelli, G.
    Date
    2002
    Permanent Link
    http://hdl.handle.net/10092/8867

    A new method, AMORE – based on a genetic algorithm optimizer, is presented for the automated study of colourmagnitude diagrams. The method combines several stellar population synthesis tools developed in the last decade by or in collaboration with the Padova group. Our method is able to recover, within the uncertainties, the parameters – distance, extinction, age, metallicity, index of a power-law initial mass function and the index of an exponential star formation rate – from a reference synthetic stellar population. No a priori information is inserted to recover the parameters, which is done simultaneously and not one at a time. Examples are given to demonstrate and to better understand biases in the results, if one of the input parameters is deliberately set fixed to a non-optimum value.

    Subjects
    numerical
     
    data analysis
     
    statistics
     
    stars
     
    Field of Research::02 - Physical Sciences::0201 - Astronomical and Space Sciences::020199 - Astronomical and Space Sciences not elsewhere classified
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    • Science: Journal Articles [508]
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