Fig. 37
Long-wavelength and near-Lyman-α parts of the NH3 and NH2D photoabsorption cross sections. The source of the NH3 cross section is discussed in Sect. 4.3.46 and the NH2D data are taken from two sources (Wu et al. 2007; Cheng et al. 2006). Also indicated is the wavelength of Lyman-α emission and the vibrational progression of absorption into the excited 
electronic state of NH3.
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