Fig. 13.
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High resolution (spacial resolution < 500 pc) submillimetre HCN diagram with the HCN(4−3) to CS(4−3) ratio plotted as a function of HCN(4−3)/HCO+(4−3) following Izumi et al. (2016), filled circles. Additional data points for NGC 613 (Audibert et al. 2019) and NGC 1808 (Audibert et al. 2021) are shown by diamonds. The location of the Circinus nucleus derived from our measurements is shown by the large red box.
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