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Fig. 9.

Fig. 9. Refer to the following caption and surrounding text.

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Virial parameter of the star-forming regions against their H2 mass derived from the gas traced by the CO(2−1) line emission for the four galaxies. Circles refer to disk clumps, squares to tail clumps. The black line shows the theoretical relation for pressure-confined clumps, arbitrarily scaled. Sizes are proportional to the clump sizes. The virial parameter assumes f = 3.

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