摘要: A non-LTE empirical model of the quiet solar photosphere and the temperature-minimum region is presented. The continuous spectrum computed from this model is in good overall agreement with available disk-center observations throug... 展开 A non-LTE empirical model of the quiet solar photosphere and the temperature-minimum region is presented. The continuous spectrum computed from this model is in good overall agreement with available disk-center observations throughout the wavelength range 0.125-500 micrometers. We find that (1) absolute-intensity measurements are needed in the range 1-2 micrometers to establish the structure of the deepest observable layers; (2) absolute-intensity or flux measurements are needed in the range 20-200 micrometers to determine whether the minimum solar temperature, occurring between the photosphere and the chromosphere, is as low ( or = 4450 K), as recent theoretical predictions indicate; (3) studies of the far-ultraviolet spectrum based on the assumption of LTE can be substantially in error; and (4) line opacity seems to account for the 'missing opacity' in the ultraviolet. 收起