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Table 2

Cores and line parameters from PdBI-only and PdBI+MOPRA N2H+ (10) datasets.

Angular Linear PdBI only PdBI+MOPRA


Core Offseta Sizeb Sizec v lsr FWHM v lsr FWHM τ M vir d
[′′, ′′] [′′] [pc] [km s-1] [km s-1] [km s-1] [km s-1] [M]

1a 0.75, 12.00 10 0.17 29.7 ± 0.2 0.53 ± 0.67 29.7 ± 0.03 0.73 ± 0.05 7.1 6.5
1a 32.2 ± 0.2 1.19 ± 0.67 32.0 ± 0.08 1.56 ± 0.02 0.1 29.5
1b 8.25, 22.50 5 0.08 31.6 ± 0.02 0.58 ± 0.04 31.3 ± 0.04 0.99 ± 0.08 1.8 6.0

2a 23.25, 3.75 6 0.10 30.3 ± 0.03 0.89 ± 0.05 30.1 ± 0.04 1.05 ± 0.06 11.2 8.0
2b 27.75, 7.50 4 0.07 ... ... 29.8 ± 0.08 1.48 ± 0.24 1.7 10.6

3a 23.25, 3.00 10 0.17 30.4 ± 0.01 1.45 ± 0.06 30.1 ± 0.02 1.89 ± 0.06 3.8 43.2
3b 9.75, 3.00 9 0.15 30.0 ± 0.03 0.61 ± 0.04 29.7 ± 0.03 1.28 ± 0.09 7.9 17.9
3c 33.75, 5.25 5 0.08 30.3 ± 0.02 0.52 ± 0.03 30.1 ± 0.03 1.80 ± 0.11 1.9 19.7
3d 42.00, 2.25 5 0.08 31.8 ± 0.03 2.08 ± 0.20 30.2 ± 0.06 2.70 ± 0.17 2.8 44.1

Notes.

(a)

Offsets from the map centre position 18h10m17.9s19°2424.̋9.

(b)

Average angular diameter of core in the merged dataset.

(c)

Linear diameter of core in the merged dataset assuming a distance of 3.41 kpc.

(d)

The virial mass is computed assuming a ρR-1.8 density profile (Shirley et al. 2002) and using the size and linewidth from the merged dataset.

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