Normalized light extinction spectrum

The normalized light extinction spectrum is identical to the photoacoustic spectrum shown in Figure 1. At 600.Onm the extinction of the laser radiation was 2% for the 9.5cm spectrophone cavity optical path. Thus, from the Beer-Lambert Law,... 

The theoretical light curve is shown in Pig. 1a together with the observed one (van Genderen A.M., The P.S., 1985, Space Sci. Rev., 39, 313). The theoretical curve properly reproduces the dimming timescale and the depth of the observed curve. Theoretical spectrum shown in Pig. 1b displays discrepancies with observations in short waves. The deficit of optical radiation can be explained only by non-uniformity of the dust envelope which increases the contribution of scattering. The slope of far infrared spectrum is due to the adopted extinction tables. Angular distribution of monochromatic brightness (normalized, in arbitrary units) is shown in Pig. 1d. 

The electron absorption spectrum of the chlorophylls and their derivatives is very characteristic and is attributed to the system of conjugated double bonds making up the basic porphyrin structure. Electron transitions in the chlorophyll molecules, detected by photosensitive optical equipment, produce absorption bands [8,64,65], The intensity of a particular absorption band is normally expressed by its molar specific coefficient of extinction s), which, according to the Beer-Lambert law, depends on the optic density (A), the molar concentration (C), and the optical pathway of the light beam through the solution, expressed in centimeters (L). 

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