FUNDAMENTAL PARAMETERS OF SUPERGIANT STAR HD 187982 (A2 Ia)
Keywords:
A spectral class supergiant star, fundamental parameters of starAbstract
The atmosphere of the HD 187982 (A2 Ia) supergiant star was studied using the model and parallax methods. The effective temperature Teff and the surface gravity g of the star were determined based on a comparison of the observed and theoretically calculated values of the photometric quantities [c1] ,Q and the equivalent widths of the spectral lines of the hydrogen Balmer
series and the using of parallax. Based on the FeII lines the microturbulence ξt and the metallicity [Fe/H] were determined. In the atmosphere of the star, the metallicity is close to the metallicity of the Sun.
