Limb-darkening coefficients for stars with thin photospheres in WUBVR and UVBY systems derived from Kurucz's model atmospheres

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Atmospheric Models, Limb Darkening, Photosphere, Stellar Atmospheres, Atmospheric Temperature, Monochromatic Radiation, Stellar Spectra, Visible Spectrum

Scientific paper

Values of flux limb-darkening coefficients determined from the condition of flux conservation by replacing the model distribution of surface brightness with a linear law are obtained in WUBVR and uvby systems from Kurucz's model atmospheres based on the results of the determination of their monochromatic values. A comparison with earlier results derived from other nongray models of stellar atmospheres shows that, in the interval of temperatures from 7000 to 8000 K, Kurucz's models substantially underestimate the limb darkening.

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