AbstractWe derive the mean stellar parameters like angular diameter, effective temperature, and metallicity from ultraviolet spectra for all β Cephei stars observed during the IUE satellite mission, including those belonging to the three open clusters. For this purpose we fit the theoretical flux distributions of Kurucz's models to observed low—resolution spectra of the stars. We focus on the metallicity parameter [m/H], which has a special meaning for β Cep stars. We obtain the value of [m/H] in the range of [−0.3, +0.3] for the field β Cep stars, and [−0.1, +0.1], [−0.5, −0.1] and [+0.1, +0.2] for β Cephei in NGC 3293, NGC 4755 and NGC 6231, respectively. We study what parameters are conditioned by metallicity and we perceive the higher metallicity for multiperiodic variables than for monoperiodic ones.


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    Title :

    The metallicity of β Cephei stars on the basis of the satellite ultraviolet spectra


    Contributors:
    Daszyńska, J. (author) / Niemczura, E. (author) / Cugier, H. (author)

    Published in:

    Advances in Space Research ; 31 , 2 ; 387-392


    Publication date :

    2002-01-01


    Size :

    6 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    The Metallicity of beta Cephei Stars on the Basis of the Satellite Ultraviolet Spectra

    Daszynska, J. / Niemczura, E. / Cugier, H. et al. | British Library Conference Proceedings | 2002



    IUE Spectrophotometry of Cephei Stars

    Cugier, H. / Daszynska, J. / Polubek, G. | British Library Online Contents | 1998