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Fig. 5.
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Cartoons to identify the principal components in NGC 613 (left) and NGC 1672 (right). For NGC 613, there is an H2O maser detected in the (0,0) nucleus position (Kondratko et al. 2006; Castangia et al. 2008). The scales are RA-Dec offsets in arc seconds. The AGN centers are indicated by faint crosshairs.
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