METHOD OF MULTI-STAGE SEEK FOR MODELS OF HIGH-METALLICITY NEBULAR OBJECTS’ EMISSION

Б. Я. Мелех, Н. В. Гаврилова, М. М. Сокiл

Abstract


The new 3-stages method for the chemical composition and physicalparameters of high-metallicity nebular objects determination was investigated. It’s based on calculations of theoptimization photoionization models (OPhMs) of these objects with using diagnostic rations between the emissionline intensities. The sensitivity of the relative line intensities and the diagnostic rations to the chemical abundancesvariations was analyzed. It was concluded that there is necessity to include the He/H, O/H and S/H to the first stageof OPhMs free parameters.

Keywords


nebular objects’ emission; determination of chemical composition.

References


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