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Fig. 3

image

Left upper: CN3CN (5k–4k) (filled yellow) and Gaussian fitting profile (red line). The RMS is 0.40 mK at a velocity resolution of 11.89 km s−1. Right upper:HCN (1–0) (filled yellow) and Gaussian fitting profile (red line). The RMS is 0.44 mK at a velocity resolution of 11.89 km s−1. Left lower: H13CN (1–0) (filled yellow) and Gaussian fitting profile (red line). The RMS is 0.45 mK at a velocity resolution of 12.21 km s−1. Right lower: HNC (1–0) (filled yellow) and Gaussian fitting profile (red line). The RMS is 0.39 mK at a velocity resolution of 11.62 km s−1.

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