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Fig. 5

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Correlation between (a) the sonic Mach number (Ms) and the non-thermal velocity dispersion (σnth) (green color) and (b) the sonic Mach number (Ms) and the hydrogen column density [N(H2)] (blue color) for W43-MM1. Symbol Y in the figure indicates the young protocluster (see Section 1). We present the reminder of the 15 protoclusters in Appendix I.

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