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Table 2

MDC and HMPC samples.

Name RA Dec Size d S int FWHM a M 20 K b ⟨ nH2 ⟩ c Remarks
(J2000) (J2000) [″×″] [kpc] [mJy] [pc] [M⊙] [107cm-3]
(1) (2) (3) (4) (5) (6) (7) (8)
N1 MDC 18:47:47.0 –1:54:26 6.2 × 4.0 6 135.2 0.088 2128 ± 53 10.35 ± 0.26
N2 MDC 18:47:46.4 –1:54:32 5.6 × 4.0 6 34.7 0.076 545 ± 59 4.19 ± 0.45
N3 MDC 18:47:45.7 –1:54:11 5.2 × 4.0 6 13.4 0.066 211 ± 38 2.43 ± 0.47
N4 MDC 18:47:44.6 –1:54:40 5.0 × 4.1 6 9.7 0.074 153 ± 38 1.92 ± 0.47
N5 MDC 18:47:45.8 –1:54:33 5.4 × 4.1 6 9.7 0.074 153 ± 27 1.24 ± 0.22
N6 MDC 18:47:44.9 –1:54:44 5.3 × 4.0 6 8.9 0.069 141 ± 36 1.45 ± 0.37
N7 MDC 18:47:46.5 –1:54:21 5.1 × 4.0 6 7.1 0.063 111 ± 26 1.45 ± 0.33
N8 MDC 18:47:44.0 –1:54:36 5.0 × 4.0 6 6.7 0.061 105 ± 19 1.56 ± 0.28
N9 MDC 18:47:48.5 –1:54:34 4.6 × 4.0 6 3.5 0.048 56 ± 17 1.64 ± 0.49
N10 MDC 18:47:46.4 –1:54:52 4.9 × 4.0 6 5.6 0.059 88 ± 26 1.50 ± 0.45
N11 MDC 18:47:47.8 –1:54:20 5.8 × 4.0 6 7.3 0.080 115 ± 24 0.75 ± 0.16
N12 dense core 18:47:49.6 –1:54:00 5.2 × 4.1 6 1.3 – 21 ± 5 – aperture extraction
N1a HMPC 18:47:47.0 –1:54:26 2.8 × 2.2 6 1900 0.033 1080 ± 35 104 ± 3.4 1 mm extraction
N1b HMPC 18:47:46.8 –1:54:29 3.4 × 2.2 6 700 0.047 395 ± 30 12.9 ± 1 1 mm extraction
Cygnus X MDCs 1.4d – ~0.11d ~60de ~0.18de Motte et al. (2007)
SDC335-MM1 HMPC 3.25 – ~0.054 ~343e ~7e Peretto et al. (2013)
G0.22&G0.24 HMPCs 3.6–6.5 – ~0.034 ~8.7e ~1e Rathborne et al. (2007)
G11.110.12 HMPCs 3.6 – ~0.025 ~10.6e ~2.94e Wang et al. (2014)
Cygnus X HMPCs 1.4d – ~0.016d ~12de ~3.6de Bontemps et al. (2010)

Notes.

(a)

FWHMs are sizes of Col. 3 deconvolved by the beam and set at 6 kpc distance: FWHM.

(b)

M20 K masses and relative uncertainties are calculated with Eq. (1) from integrated fluxes Sint (Col. 4) and errors measured by Getsources, except when mentioned in remarks. The errors do not consider the absolute uncertainties such as flux calibration, temperature, and emissivity assumptions.

(c)

Mean densities are measured from Cols. 4 and 5 via .

(d)

Sizes, masses, and densities have been recalculated with a distance to Cygnus X of 1.4 kpc from the Sun (Rygl et al. 2012).

(e)

Measurements have been recalculated using Eq. (1), or its equivalent at 1 mm, T = 20 K, dust opacity discussed in Sect. 3, and the equation given in (c).

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