Synthetic spectra computed for the Sun (black curve) and the K dwarf (red curve) from the optical to the infrared with a constant resolution of λ/ Δλ = 20 000. The blue shading indicates the [7500–7700] Å region used in Table 2, the red shading the [25 000–29 000] Å, and the green shading the [39 000–51 000] Å. Note the use of the astronomical flux (i.e., the flux divided by a factor π) such that the values of the flux and intensity are the same. Note also the logarithmic x- and y-axis scale.
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