Fig. 7
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Plot illustrating the lines in the pure rotational (0,0) and (1,1) series of H2 (orange and blue, respectively) for the DF1 region of NGC 7023. Identifications in italics with a dashed line were not included in final line lists – the (1,1)S(18,10,8) lines were weak and in complex regions of the spectrum, making extraction uncertain.
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