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Table 3

Source positions.

Source name RA Dec Radius Phys. radius SED class Classification
′′ pc

Between 19:23:41.47 14:30:51.0 4.5 0.11 E
G49.46-0.36 19:23:35.12 14:29:55.8 34.4 0.85 E
G49.46-0.38 19:23:40.18 14:29:39.1 19.1 0.47 E
W51 IRS 2 19:23:39.89 14:31:08.3 1.3 0.03 E
W51 IRS 2 bubble 19:23:39.90 14:31:08.5 21.4 0.53 E
W51 Main 40 kms RRL Shell 19:23:42.23 14:30:40.2 7.8 0.19 E
W51 Main 65 kms RRL shell 19:23:42.55 14:30:43.1 10.8 0.27 E
W51 Main Shell 19:23:44.68 14:30:23.5 41.5 1.03 E
W51G 8 19:23:50.69 14:32:50.1 7.1 0.18 E
arc 19:23:41.00 14:30:37.3 6.0 0.15 E
d2 19:23:39.82 14:31:04.9 b,d,n HCHII
d3 19:23:35.87 14:31:27.9 1.9 0.05 E UCHII
d4e 19:23:39.64 14:31:30.6 f,v cCWB
d4w 19:23:39.60 14:31:30.4 f cCWB
d5 19:23:41.78 14:31:27.6 w cCWB
d6 19:23:41.24 14:31:11.6 f,n cCWB
d7 19:23:40.92 14:31:06.7 f cCWB
e1 19:23:43.78 14:30:26.1 0.7 0.02 E UCHII
e2 19:23:43.91 14:30:34.6 a,d HCHII
e3 19:23:43.84 14:30:24.7 b,d HCHII
e4 19:23:43.91 14:30:29.5 b,d HCHII
e5 19:23:41.86 14:30:56.8 b,d HCHII
e6 19:23:41.79 14:31:02.7 1.0 0.03 E UCHII
e7 19:23:44.79 14:29:11.3 1.8 0.04 E UCHII
e8n 19:23:43.91 14:30:28.2 b / w HCHII
e8s 19:23:43.91 14:30:27.9 b HCHII
e9 19:23:43.65 14:30:26.8 c,f HCHII
e10 19:23:43.96 14:30:27.0 f HCHII
e11 19:23:45.58 14:30:26.2 b HCHII
e11d 19:23:45.69 14:30:29.1 3.6 0.09 E HII
e12 19:23:42.86 14:30:30.4 E
e13 19:23:42.81 14:30:36.9 b,c,E cCWB/HII
e14 19:23:42.61 14:30:42.1 b,c,E cCWB/HII
e15 19:23:38.65 14:30:05.7 b,c,E UCHII
e16 19:23:46.51 14:29:50.2 E
e17 19:23:45.85 14:29:50.2 E
e18 19:23:46.18 14:29:46.9 E
e18d 19:23:46.18 14:29:44.0 3.2 0.08 E HII
e19 19:23:44.83 14:29:45.0 E
e20 19:23:42.86 14:30:27.6 E
e21 19:23:42.83 14:30:27.8 E
e22 19:23:42.78 14:30:27.6 E
e23 19:23:43.06 14:30:34.9 E

Notes. Objects with name e#d are the diffuse counterparts to point sources. The absolute positional accuracy is ~0.2″. Sources with no radius are unresolved, with upper limits of 0.3′′(0.007 pc).Source names correspond to the labels in Figs. 2 and A.2. a: ν2 dependence. b: ν1 dependence. c: ν< 5 GHz excess or negative index. d: ν> 15 GHz flat. f: ν-independent flat. E: extended (photometry not trustworthy). n: near bright, extended emission (may affect photometry). v: Likely variable. w: Too weak for SED classification. HCHII: hypercompact H ii region. UCHII: ultracompact H ii region. HII: extended H ii region or part of a larger H ii region. cCWB: candidate colliding-wind binaries.

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