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Table A.4

Parameters of the best-fit IRDC model.

Parameter Symbol Model

Inner radius r0 12 700 AU
Outer radius r1 0.5 pca
Density at the inner radius ρ0 1.4 × 105 cm-3
Average density with a beam of 26 000 AU 8.9 × 104 cm-3
Average density with a beam of 54 000 AU 5.2 × 104 cm-3
Density profile p 1.5
Temperature at the inner radius T0 11.3 K
Average temperature 11.3 K
Temperature profile q 0
Lifetime 16 500 yr



This value is limited by the largest 29″ IRAM beam size used in our observations.

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