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Table 4

Parameters from the ∆-variance study from Herschel column density maps, ordered by cloud type and name.

Cloud β1 (1) P1 (pc) (2) β2 (3) P2 (pc) (4)
High-mass SF regions

Cygnus N 2.51 0.59
Cygnus S 2.17 1.42
M16 2.17 2.62
M17 2.22 2.57
NGC 6334 2.41 1.10
NGC 6357 2.02 2.53
NGC 7538 2.93 2.10
Rosette 2.42 4.76
Vela C 2.30 1.83

mean 2.35 ± 0.25 2.17 ± 1.13
median 2.30 2.10

Intermediate-mass SF regions

Aquila 2.28 0.32 2.62 3.90
Mon R2 2.20 0.37 3.04 1.37
Mon OB1 3.38 0.76 2.50 4.36
NGC 2264 2.80 0.98
Orion B 2.18 1.39 2.36 4.90
Serpens 2.36 0.79

mean 2.53 ± 0.43 0.92 ± 0.50 2.63 ± 0.25 3.63 ± 2.35
median 2.32 0.79 2.56 4.13

Low-mass SF regions

Cham I 2.95 0.21 2.78 2.61
Cham II 2.64 0.61 2.90 2.56
IC5146 2.50 0.68
Lupus I 2.77 0.11 2.45 0.82
Lupus III 3.10 0.08 2.66 1.18
Lupus IV 2.99 0.79 2.63 6.53
Perseus 2.13 2.45
Pipe 3.04 0.25
pOph 2.17 0.17 2.62 1.39
Taurus 3.30 0.30

mean 2.76 ± 0.37 0.55 ± 0.67 2.67 ± 0.14 2.51 ± 1.91
median 2.86 0.28 2.64 1.96

Quiescent regions

Cham III 2.73 0.45
Musca 3.42 0.11 2.55 0.89
Polaris 2.40 0.15

mean 2.85 ± 0.42 0.24 ± 0.15 2.55 0.89
median 2.73 0.15 2.55 0.89

Diffuse/atomic regions

Draco 2.27 5.95

Notes. Columns (1,3): exponents β1 (β2), derived from the ∆-variance calculation. Columns (2,4): first and second peak or turnover point in the ∆-variance spectrum in parsec.

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