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Table 1

Properties of the 47 velocity-coherent filaments identified toward NGC 6334 in the 3D PPV C18O(2–1) cube at the spatial and velocity resolutions of 30.″2 and 0.3 km s−1, respectively.

Crest
#
(1)		 L
[pc]
(2)
[1022 cm−2]
(3)		 Mline
[M⊙ pc−1]
(4)		 Tdust
[K]
(5)		 Tpeak
[K]
(6)		 υlos
[km s−1]
(7)		 συ
[km s−1]
(8)
[km s−1 pc−1]
(9)

(10)

(11)
1 3.7 18.6 ± 15.0 507 ± 447 24.3 ± 3.5 12.7 ± 3.4 −3.6 ± 2.5 1.1 ± 0.5 −2.1 ± 0.2 −1.50 ± 0.29 −1.66 ± 0.15
2 2.9 2.7 ± 1.5 47 ± 24 21.5 ± 3.0 6.3 ± 2.9 −9.7 ± 0.8 0.9 ± 0.1 −0.1 ± 0.2 −1.76 ± 0.47 −2.05 ± 1.18
3 1.3 2.1 ± 0.6 32 ± 16 19.3 ± 1.0 4.5 ± 1.4 −9.9 ± 0.9 0.8 ± 0.2 1.2 ± 0.4 −2.58 ± 0.85 −1.29 ± 0.50
4 3.4 8.0 ± 8.6 200 ± 231 22.1 ± 1.1 6.2 ± 2.5 −5.8 ± 1.2 1.0 ± 0.4 1.0 ± 0.1 −2.21 ± 0.18 −2.15 ± 0.39
5 3.9 2.9 ± 1.9 54 ± 34 18.0 ± 0.9 4.4 ± 1.4 −8.8 ± 1.0 0.6 ± 0.3 −0.8 ± 0.1 −2.13 ± 0.42 −2.33 ± 0.24
6 1.7 1.4 ± 0.3 11 ± 19 21.7 ± 1.3 4.4 ± 1.9 −9.0 ± 1.0 0.6 ± 0.2 0.7 ± 0.2 −3.44 ± 0.53 −2.45 ± 1.02
7 1.1 1.4 ± 0.2 11 ± 23 24.3 ± 3.7 3.5 ± 0.6 −9.3 ± 0.9 0.9 ± 0.4 −0.0 ± 0.4 −1.15 ± 0.21 0.72 ± 0.23
8 1.8 1.9 ± 0.3 26 ± 23 20.4 ± 1.5 4.6 ± 1.3 −6.5 ± 0.6 0.7 ± 0.3 −1.0 ± 0.1 −1.16 ± 0.64 −1.44 ± 0.07
9 1.3 7.5 ± 2.6 185 ± 85 22.3 ± 1.0 8.4 ± 1.8 −4.5 ± 1.5 1.0 ± 0.2 −1.5±1.2 −2.05 ± 1.26 −2.08 ± 0.08
10 2.5 2.0 ± 0.4 27 ± 20 19.2 ± 0.6 4.7 ± 1.7 −7.4 ± 0.5 0.8 ± 0.3 −0.0 ± 0.1 −0.78 ± 0.37 −1.20 ± 0.73
11 1.7 8.1 ± 3.7 204 ± 110 18.7 ± 0.5 5.1 ± 1.7 −6.6 ± 0.6 0.6 ± 0.3 1.1 ± 0.1 −2.70 ± 0.82 −1.98 ± 0.40
12 1.4 2.0 ± 0.4 29 ± 20 23.0 ± 0.5 3.8 ± 0.9 −6.7 ± 0.6 0.8 ± 0.2 −1.2 ± 0.2 −2.16 ± 0.59 −1.31 ± 0.69
13 1.6 2.4 ± 0.7 40 ± 18 19.8 ± 1.0 6.0 ± 1.7 −6.5 ± 0.2 0.6 ± 0.2 −0.2 ± 0.1 −1.47 ± 0.73 −0.25 ± 0.57
14 1.4 2.1 ± 0.6 31 ± 15 17.9 ± 0.5 3.9 ± 1.0 −5.4 ± 0.8 0.5 ± 0.1 0.8 ± 0.2 −2.78 ± 0.56 −3.50 ± 1.73
15 1.1 1.5 ± 0.1 15 ± 26 21.0 ± 0.9 3.1 ± 0.7 −5.7 ± 0.5 0.7 ± 0.2 0.6 ± 0.5 −1.32 ± 1.39 −4.80 ± 5.61
16 1.9 1.9 ± 0.3 26 ± 23 19.4 ± 0.7 3.5 ± 1.0 −5.5 ± 0.2 0.5 ± 0.1 −0.2 ± 0.1 −1.68 ± 0.29 −0.87 ± 0.34
17 2.1 2.7 ± 0.6 47 ± 21 21.9 ± 1.9 7.4±3.4 −3.2 ± 0.9 0.5 ± 0.1 −1.3 ± 0.1 −1.49 ± 0.19 −2.01 ± 0.34
18 1.6 4.2±1.2 91 ± 35 22.2 ± 1.2 6.0 ± 1.6 −5.2 ± 0.7 1.3 ± 0.4 −1.1 ± 0.3 −0.95 ± 0.34 −0.56 ± 0.61
19 3.0 1.9 ± 0.5 25 ± 16 18.7 ± 0.7 3.9 ± 0.9 −5.1 ± 0.8 0.6 ± 0.2 −0.4 ± 0.1 −1.13 ± 1.14 −1.88 ± 0.54
20 1.1 1.8 ± 0.3 23 ± 21 18.9 ± 0.7 4.1 ± 0.7 −3.7 ± 1.0 0.7 ± 0.3 −2.9 ± 0.4 −2.15 ± 0.54 −2.54 ± 0.26
21 3.2 2.3 ± 0.7 36 ± 16 20.2 ± 0.7 5.9 ± 2.2 −4.5 ± 0.4 0.5 ± 0.2 0.0 ± 0.1 −2.66 ± 0.74 −1.56 ± 0.33
22 1.1 2.3 ± 0.2 37 ± 26 23.5 ± 0.3 4.0 ± 0.9 −4.9 ± 0.3 0.8 ± 0.1 −0.1 ± 0.3 −1.75 ± 1.46 −2.73 ± 0.08
23 1.0 2.6 ± 1.0 46 ± 18 21.5 ± 0.5 5.3 ± 1.4 −3.2 ± 0.3 0.5 ± 0.3 0.8 ± 0.2 −1.18 ± 0.71 −2.03 ± 1.11
24 1.4 3.5 ± 1.1 72 ± 28 27.8 ± 0.6 5.4 ± 1.4 −3.6 ± 1.5 1.0 ± 0.3 −3.2 ± 0.5 −2.63 ± 0.66 −3.07 ± 0.93
25 1.1 2.4 ± 0.8 40 ± 16 18.1 ± 1.2 3.3 ± 0.4 −4.4 ± 0.1 0.6 ± 0.1 0.2 ± 0.1 −3.45 ± 0.45 −3.75 ± 1.39
26 3.9 3.4 ± 1.6 68 ± 31 18.9 ± 1.3 4.6 ± 1.2 −3.6 ± 0.4 0.7 ± 0.3 0.2 ± 0.0 −3.43 ± 0.43 −1.42 ± 0.46
27 1.6 3.3 ± 0.6 65 ± 27 26.5 ± 2.0 6.4 ± 2.1 −2.8 ± 1.4 1.2 ± 0.3 2.6 ± 0.3 −1.48 ± 1.35 −1.53 ± 0.45
28 1.5 6.2 ± 5.1 150 ± 130 19.9 ± 0.7 4.2 ± 0.6 −3.9 ± 0.7 1.3 ± 0.9 −1.1 ± 0.3 −1.18 ± 0.09 −2.57 ± 1.35
29 3.6 2.6 ± 1.2 46 ± 19 19.1 ± 1.2 4.0 ± 1.0 −3.4 ± 0.9 0.9 ± 0.2 0.2 ± 0.1 −1.14 ± 0.55 −2.69 ± 0.44
30 1.4 1.5 ± 0.2 15 ± 23 18.5 ± 0.3 3.2 ± 0.9 −3.4 ± 0.5 0.3 ± 0.4 −1.0 ± 0.1 −2.23 ± 1.48 −1.42 ± 0.87
31 1.4 15.3 ± 8.0 410 ± 255 25.9 ± 1.7 14.9 ± 4.7 −3.5 ± 1.3 1.1 ± 0.2 −2.5 ± 0.5 −0.81 ± 1.13 −1.85 ± 0.32
32 5.6 10.6 ± 11.5 275 ± 321 18.5 ± 0.7 6.6 ± 2.8 −3.3 ± 0.6 0.9 ± 0.6 0.0 ± 0.0 −2.08 ± 0.25 −3.16 ± 0.41
33 1.4 2.0 ± 0.3 30 ± 23 18.5 ± 0.3 3.7 ± 0.6 −3.5 ± 0.6 0.6 ± 0.1 −1.5 ± 0.2 −1.06 ± 0.57 −3.09 ± 0.81
34 1.7 3.4 ± 0.8 68 ± 27 16.4 ± 0.4 3.7 ± 0.9 −2.7 ± 0.7 0.7 ± 0.3 −1.2 ± 0.1 −2.08 ± 1.37 −2.01 ± 0.63
35 3.7 2.1 ± 0.4 32 ± 20 18.0 ± 0.4 4.1 ± 0.9 −3.7 ± 0.2 0.4 ± 0.3 0.0 ± 0.0 −2.15 ± 0.40 −1.02 ± 0.44
36 1.8 1.4 ± 0.2 11 ± 22 20.5 ± 0.6 3.6 ± 0.8 −2.9 ± 0.5 0.5 ± 0.2 −0.8 ± 0.1 −1.78 ± 0.48 −2.52 ± 0.30
37 3.1 1.9 ± 0.3 27 ± 22 19.6±1.2 5.3 ± 1.1 −3.1 ± 0.4 0.4 ± 0.2 0.4 ± 0.0 −2.05 ± 0.56 −1.83 ± 0.32
38 4.1 3.4 ± 1.7 69 ± 32 17.5 ± 0.8 5.2 ± 3.3 −3.1 ± 0.4 0.4 ± 0.2 −0.3 ± 0.0 −2.25 ± 0.52 −1.91 ± 0.29
39 3.2 2.4 ± 1.0 40 ± 15 19.6 ± 1.1 4.8 ± 1.4 −2.6 ± 0.5 0.6 ± 0.3 −0.5 ± 0.0 −2.09 ± 0.33 −1.84 ± 0.33
40 1.0 2.3 ± 0.5 36 ± 20 24.9 ± 0.5 5.0 ± 1.6 −3.0 ± 0.3 0.7 ± 0.1 0.6 ± 0.2 −0.77 ± 1.20 −0.97 ± 3.27
41 1.1 6.2 ± 0.9 148 ± 57 28.7±1.2 12.2 ± 3.5 −2.1 ± 0.5 0.9 ± 0.2 1.6 ± 0.2 −1.71 ± 0.41 –
42 2.6 1.7 ± 0.4 20 ± 20 21.1 ± 2.5 4.5±1.6 −1.9 ± 0.4 0.6 ± 0.2 −0.1 ± 0.1 −1.77 ± 0.47 −2.64 ± 0.26
43 5.0 3.1 ± 1.1 59 ± 23 17.8±1.4 4.6±1.3 −1.5 ± 0.9 0.7 ± 0.5 0.4 ± 0.1 −1.68 ± 0.20 −2.08 ± 0.27
44 1.0 2.3 ± 0.2 36 ± 27 18.1 ± 0.4 3.3 ± 0.6 −1.4 ± 0.3 0.3 ± 0.1 −1.1 ± 0.1 −1.37 ± 0.15 −1.55 ± 0.69
45 2.3 2.7 ± 0.5 49 ± 23 19.2 ± 0.3 6.2 ± 2.0 −0.9 ± 0.9 0.6 ± 0.2 −0.7 ± 0.2 −1.36 ± 1.01 −1.74 ± 0.69
46 1.3 2.9 ± 0.6 55 ± 24 18.3 ± 0.2 4.0±1.2 −1.0 ± 0.2 0.5 ± 0.1 −0.3 ± 0.2 −1.90 ± 0.24 −2.54 ± 0.49
47 3.5 5.3 ± 2.0 124±56 15.6 ± 0.8 3.8 ± 0.7 1.2 ± 0.7 1.0 ± 0.3 −0.2 ± 0.1 −2.58 ± 0.64 −2.48 ± 0.56
Range 1.0 / 5.6 1.4/18.6 11 / 507 15.6 / 28.7 3.1 / 14.9 −9.9/1.2 0.3 / 1.3 −3.2 / 2.6 −3.4 / −0.8 −4.8 / 0.7
Mean 2.2 3.8 79 20.6 5.3 −4.4 0.7 −0.3 −1.9 −2.0
Stdev 1.2 3.5 99 2.9 2.4 2.4 0.3 1.1 0.7 0.9

Notes. Columns (3) to (8) give the mean and standard deviation of the values along the VCF crests (see Sect. 4.1). Columns (9) to (11) give the slopes of linear fits and the associated errors. Columns: (1) Crest number. (2) Crest length. The VCFs of this sample are selected for L > 0.9 pc or L > 10 pixels. (3) Column density derived from Herschel observations. (4) Mass per unit length calculated using the relation , where Wfil = 0.13 pc is the filament width, = 2.8 the mean molecular weight per hydrogen molecule, mH the mass of a hydrogen atom, and , with being the values given in Col. (3) and 1 × 1022 cm−2 the mean value of the local background. (5) LOS averaged dust temperature derived from Herschel observations. (6)–(8) Mean and standard deviation of the C18O(2–1) line peak temperature (Tpeak), centroid velocity (υlos), and velocity dispersion derived from the multi-velocity Gaussian fit analysis (see Sect. 4.1). (9) Velocity gradient along the VCFs. (10) Slope of the column density power spectrum. (11) Slope of the velocity power spectrum. The bottom three rows give the observed range (minimum / maximum), the mean value, and the standard deviation (Stdev) of each property.

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