Fig. 2

Spectra of the fine components of the NKa,Kc = 11,1 ← 00,0 NHD transition observed toward IRAS 16293-2422 Upper panel:
component at ca. 770 GHz. Lower panel:
component at ca. 776 GHz. The filled gray histograms show the observed spectra, while the blue trace is our HFS fit. The red bars represent the positions of the HFS components assuming LTE intensities.
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