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Table 3

Virial analysis.

Object Δv Linear diameter M gas. M vir (ρ ∝ 1 /r) M vir (ρ ∝ 1 /r2) α (ρ ∝ 1 /r) α (ρ ∝ 1 /r2)
[km s-1] [pc] [M] [M] [M]

IRDC079.31 1.7 0.3 70 180 120 2.4 1.6
ISOSS18364 1.1 0.5 90 110 75 1.2 0.8
ISOSS20153 1.3 0.2 20 80 50 4.0 2.6
ISOSS22478 1.1 0.6 100 150 100 1.5 1.0
ISOSS23053 1.2 0.8 370 230 150 0.6 0.4

Notes. The masses are measured within a circle of 40′′ diameter around the peak position given in Table 1. The corresponding linear diameter is given. Δv is measured for the peak spectrum observed with the Effelsberg 100 m Telescope. Virial masses and virial parameter are given, depending on the density profile of the clump. For ISOSS23053, we chose the linewidth of the red component (see Sect. 4.1.3).

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