2011MNRAS.416..178B

Query : 2011MNRAS.416..178B

2011MNRAS.416..178B - Mon. Not. R. Astron. Soc., 416, 178-204 (2011/September-1)

Constraining the properties of 1.2-mm dust clumps that contain luminous water masers.

BREEN S.L. and ELLINGSEN S.P.

Abstract (from CDS):

We have conducted a sensitive water maser search with the Australia Telescope Compact Array towards 267 1.2-mm dust clumps presented in the literature. We combine our new observations with previous water maser observations to extend our sample to 294 1.2-mm dust clumps, towards which we detect 165 distinct water maser sites towards 128 1.2-mm dust clumps. Within the fields of our observations, we additionally find four water masers with no apparent associated 1.2-mm dust continuum emission. Our overall detection rate of 44 per cent appears to vary as a function of Galactic longitude. We find that there is an excellent correspondence between the locations of the detected water masers with the peak of the target 1.2-mm dust clump sources. As expected from previous similar studies, the water masers are chiefly detected towards the bigger, brighter and more massive 1.2-mm dust clumps.

We find further evidence to suggest that the water masers tend to increase in flux density (and therefore luminosity), as well as velocity range, as the sources evolve. We also show that the current sample of water maser sources suffers less from evolutionary biases than previous targeted searches.

We have compared the locations of the water masers with dust clumps which have a previously determined association with 6.7-GHz methanol masers and 8-GHz radio continuum. We find that the fraction of 1.2-mm dust clump sources in our sample that are associated only with water masers (41) is higher than that of the sources associated only with methanol masers (13). This suggests that water masers can be present at an even earlier evolutionary stage than 6.7-GHz methanol masers. Comparison of the water maser detection rates associated with different combinations of methanol maser and radio continuum, as well as those with neither tracer, shows that the highest detection rate is towards those sources which also exhibit methanol maser emission.

We have tested a previously hypothesized model for water maser presence towards 1.2-mm dust clumps. We not only find water masers towards a high proportion of the clumps that the model predicts would have associated water masers, but also find a number of water masers towards sources with a low calculated probability. We propose that this is likely an artefact of the poorly determined distances to the sources. We suggest refinements and future work which will further constrain the nature of the driving sources associated with water masers.


Abstract Copyright: 2011 CSIRO Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): masers - stars: formation - ISM: molecules - radio lines: ISM

VizieR on-line data: <Available at CDS (J/MNRAS/416/178): table2.dat>

Simbad objects: 300

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Number of rows : 300
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Mon R2 HII 06 07 47.58 -06 22 42.6           ~ 789 2
2 [HBM2005] G213.61-12.6 mm 06 07 47.9 -06 22 57           ~ 5 0
3 [HBM2005] G269.45-1.47 mm 09 03 13.5 -48 55 22           ~ 4 0
4 [HBM2005] G269.15-1.13 mm 09 03 32.3 -48 28 00           ~ 3 0
5 [HBM2005] G270.25+0.84 mm 09 16 41.4 -47 55 46           ~ 4 0
6 [HBM2005] G284.271-0.391 mm 10 23 47.0 -57 48 38           ~ 3 0
7 [HBM2005] G284.307-0.376 mm 10 24 04.0 -57 49 02           ~ 3 0
8 [HBM2005] G284.338-0.417 mm 10 24 06.0 -57 52 06           ~ 3 0
9 [HBM2005] G284.35-0.42 mm 10 24 10.0 -57 52 39           ~ 3 0
10 [HBM2005] G284.345-0.404 mm 10 24 12.0 -57 51 42           ~ 3 0
11 [HBM2005] G284.341-0.389 mm 10 24 14.0 -57 50 46           ~ 3 0
12 [HBM2005] G284.328-0.365 mm 10 24 15.0 -57 49 10           ~ 3 0
13 [HBM2005] G284.384-0.441 mm 10 24 18.0 -57 54 46           ~ 3 0
14 [HBM2005] G284.344-0.366 mm 10 24 21.0 -57 49 42           ~ 3 0
15 [HBM2005] G284.352-0.353 mm 10 24 27.0 -57 49 18           ~ 3 0
16 [HBM2005] G287.37+0.65 mm 10 48 05.2 -58 26 40           ~ 4 0
17 [HBM2005] G290.40-2.91 mm 10 57 33.0 -62 58 54           ~ 4 0
18 [HBM2005] G291.256-0.769 mm 11 11 33.9 -61 21 22           ~ 3 0
19 [HBM2005] G291.256-0.743 mm 11 11 38.3 -61 19 54           ~ 4 0
20 [HBM2005] G291.27-0.70 mm 11 11 54.8 -61 18 26           ~ 3 0
21 [HBM2005] G291.288-0.706 mm 11 12 00.6 -61 18 34           ~ 3 0
22 [HBM2005] G291.302-0.693 mm 11 12 09.4 -61 18 10           ~ 3 0
23 [HBM2005] G291.309-0.681 mm 11 12 15.0 -61 17 38           ~ 3 0
24 [HBM2005] G290.37+1.66 mm 11 12 16.1 -58 46 19           ~ 4 0
25 [HBM2005] G291.587-0.499 mm 11 14 54.5 -61 13 32           ~ 3 0
26 [HBM2005] G291.576-0.468 mm 11 14 57.8 -61 11 40           ~ 3 0
27 AGAL G291.571-00.451 smm 11 14 58.812 -61 10 35.34           ~ 6 0
28 [HBM2005] G291.608-0.532 mm 11 15 01.1 -61 15 56           ~ 3 0
29 [HBM2005] G291.597-0.496 mm 11 15 02.2 -61 13 40           ~ 3 0
30 [BE83] IR 291.57-00.43 Y*O 11 15 04.67 -61 09 37.6           ~ 13 0
31 [HBM2005] G291.630-0.545 mm 11 15 08.9 -61 17 08           ~ 3 0
32 [HBM2005] G291.614-0.443 mm 11 15 19.9 -61 11 08           ~ 3 0
33 [HBM2005] G293.824-0.762 mm 11 32 01.4 -62 13 18           ~ 3 0
34 MMB G293.827-00.746 Mas 11 32 05.56 -62 12 25.3           ~ 9 0
35 HIGALBM G293.8948-00.7825 smm 11 32 33.077 -62 15 43.39           ~ 4 0
36 [HBM2005] G293.95-0.8 mm 11 32 42.0 -62 22 35           ~ 3 0
37 [HBM2005] G293.942-0.876 mm 11 32 42.0 -62 21 55           ~ 3 0
38 [HBM2005] G293.989-0.936 mm 11 32 55.8 -62 26 11           ~ 3 0
39 [HBM2005] G294.52-1.60 mm 11 35 31.0 -63 14 36           ~ 4 0
40 [HBM2005] G294.945-1.737 mm 11 38 57.1 -63 28 46           ~ 3 0
41 [HBM2005] G294.97-1.7 mm 11 39 09.0 -63 28 38           ~ 3 0
42 [HBM2005] G294.989-1.720 mm 11 39 22.1 -63 28 30           ~ 3 0
43 [HBM2005] G298.26+0.7 mm 12 11 45.4 -61 45 42           ~ 4 0
44 [HBM2005] G299.02+0.1 mm 12 17 18.6 -62 28 40           ~ 3 0
45 [HBM2005] G299.024+0.130 mm 12 17 30.2 -62 29 04           ~ 3 0
46 [HBM2005] G300.455-0.190 mm 12 29 37.3 -62 57 23           ~ 3 0
47 [HBM2005] G300.51-0.1 mm 12 30 02.0 -62 56 35           ~ 3 0
48 [HBM2005] G301.14-0.2 mm 12 35 29.1 -63 01 32           ~ 4 0
49 MMB G302.032-00.061 cor 12 43 31.92 -62 55 06.7           ~ 19 0
50 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 3205 2
51 HIGALBM G305.1454+00.2076 smm 13 10 40.978 -62 34 53.18           ~ 4 0
52 AGAL G305.137+00.069 Y*O 13 10 42.526 -62 43 14.39           ~ 21 0
53 [HBM2005] G305.201+0.241 mm 13 11 08.3 -62 32 37           ~ 3 0
54 [HBM2005] G305.202+0.230 mm 13 11 09.4 -62 33 17           ~ 3 0
55 [HBM2005] G305.20+0.02 mm 13 11 12.3 -62 44 57           ~ 3 0
56 [HBM2005] G305.192-0.006 cor 13 11 13.6 -62 47 29           ~ 21 0
57 [HBM2005] G305.21+0.21 cor 13 11 14 -62 34.7           ~ 26 0
58 AGAL G305.197+00.007 smm 13 11 16 -62 46.7           ~ 15 0
59 AGAL G305.199+00.019 smm 13 11 16.951 -62 45 54.58           ~ 14 0
60 [HBM2005] G305.226+0.275 mm 13 11 19.8 -62 30 29           ~ 3 0
61 [HBM2005] G305.228+0.286 mm 13 11 20.9 -62 29 48           ~ 3 0
62 [HBM2005] G305.238+0.261 mm 13 11 26.7 -62 31 16           ~ 3 0
63 HIGALBM G305.2472+00.2449 smm 13 11 32.378 -62 32 11.39           ~ 4 0
64 [HBM2005] G305.233-0.023 mm 13 11 35.8 -62 48 16           ~ 3 0
65 [HBM2005] G305.269-0.010 mm 13 11 54.4 -62 47 19           ~ 3 0
66 [HBM2005] G305.358+0.203 mm 13 12 31.6 -62 34 11           ~ 2 0
67 [HBM2005] G305.362+0.185 mm 13 12 34.7 -62 35 15           ~ 3 0
68 [HBM2005] G305.361+0.151 mm 13 12 35.2 -62 37 15           ~ 3 0
69 [HBM2005] G305.37+0.21 mm 13 12 36.3 -62 33 39           ~ 3 0
70 [HBM2005] G305.340-0.172 mm 13 12 38.1 -62 36 42           ~ 3 0
71 [HBM2005] G305.520-0.020 mm 13 14 06.1 -62 46 41           ~ 3 0
72 [HBM2005] G305.549+0.002 mm 13 14 20.0 -62 45 13           ~ 3 0
73 [HBM2005] G305.55+0.01 mm 13 14 21.2 -62 44 33           ~ 3 0
74 AGAL G305.554-00.011 smm 13 14 22.882 -62 46 00.74           ~ 15 0
75 MMB G305.563+00.013 cor 13 14 26.90 -62 44 29.4           ~ 23 0
76 [HBM2005] G305.581+0.033 mm 13 14 35.1 -62 43 02           ~ 3 0
77 [HBM2005] G305.605+0.010 mm 13 14 49.1 -62 44 24           ~ 3 0
78 [HBM2005] G305.81-0.25 mm 13 16 43.2 -62 58 37           ~ 4 0
79 [HBM2005] G305.833-0.196 mm 13 16 58.3 -62 55 25           ~ 4 0
80 [HBM2005] G306.319-0.343 mm 13 21 18.2 -63 01 07           ~ 3 0
81 [HBM2005] G306.33-0.3 mm 13 21 18.2 -63 00 43           ~ 3 0
82 AGAL G306.343-00.301 Y*O 13 21 31.814 -62 58 23.47           ~ 11 0
83 AGAL G306.344-00.326 Y*O 13 21 34.085 -62 59 50.77           ~ 11 0
84 [HBM2005] G309.917+0.494 mm 13 50 38.2 -61 34 20           ~ 3 0
85 IRAS 13471-6120 cor 13 50 41.810 -61 35 10.67           ~ 65 0
86 RAFGL 4972S cor 15 00 34.52760 -58 58 08.9076           ~ 51 1
87 OH 318.95-00.20 Y*O 15 00 55.35024 -58 58 53.2848           ~ 85 1
88 [HBM2005] G323.74-0.3 mm 15 31 41.6 -56 30 11           ~ 4 0
89 [HBM2005] G330.95-0.18 mm 16 09 48.8 -51 53 51           ~ 2 0
90 [HBM2005] G332.640-0.586 mm 16 19 30.5 -51 02 40           ~ 3 0
91 [HBM2005] G332.648-0.606 mm 16 19 38.1 -51 03 12           ~ 3 0
92 GAL 332.80-00.60 HII 16 19 47 -51 04.1           ~ 103 1
93 AGAL G332.726-00.621 smm 16 20 03.096 -51 00 32.44           ~ 17 0
94 HIGALBM G332.7768-00.5830 smm 16 20 06.823 -50 56 46.04           ~ 4 0
95 [HBM2005] G332.627-0.511 mm 16 20 07.0 -51 00 00           ~ 3 0
96 [HBM2005] G332.794-0.598 mm 16 20 15.0 -50 56 40           ~ 3 0
97 AGAL G000.203+00.052 smm 17 45 55 -28 44.1           ~ 9 0
98 AGAL G000.496+00.187 smm 17 46 04 -28 24.8           ~ 13 0
99 AGAL G000.264+00.032 smm 17 46 07 -28 41.5           ~ 15 0
100 [HBM2005] G0.21-0.00 mm 17 46 07.7 -28 45 20           ~ 6 0
101 [HBM2005] G0.497+0.170 mm 17 46 08.2 -28 25 23           ~ 5 0
102 NAME the Brick MoC 17 46 09 -28 43.8           ~ 226 0
103 BGPSv2 G000.526+00.183 smm 17 46 10.178 -28 23 31.59           ~ 6 0
104 [HBM2005] G0.271+0.022 mm 17 46 10.7 -28 41 36           ~ 5 0
105 [HBM2005] G0.257+0.011 mm 17 46 11.4 -28 42 40           ~ 5 0
106 MMB G000.836+00.184 cor 17 46 52.86 -28 07 34.8           ~ 19 0
107 [HBM2005] G0.331-0.164 mm 17 47 00.0 -28 45 20           ~ 4 0
108 [HBM2005] G0.310-0.170 mm 17 47 01.2 -28 45 36           ~ 5 0
109 AGAL G000.316-00.201 smm 17 47 09 -28 46.2           ~ 19 0
110 [HBM2005] G0.325-0.242 mm 17 47 20.1 -28 47 04           ~ 5 0
111 [HBM2005] G1.124-0.065 mm 17 48 31.6 -28 00 31           ~ 5 0
112 [HBM2005] G1.134-0.073 mm 17 48 34.7 -28 00 16           ~ 5 0
113 [HBM2005] G1.105-0.098 mm 17 48 36.4 -28 02 31           ~ 5 0
114 AGAL G001.126-00.107 cor 17 48 41.5 -28 01 41           ~ 20 0
115 [MGL98] OH Maser I Y*O 17 48 48.5410 -28 01 11.350           ~ 26 0
116 AGAL G000.546-00.852 smm 17 50 14.542 -28 54 30.70           ~ 18 0
117 [HBM2005] G0.549-0.868 mm 17 50 18.8 -28 53 14           ~ 5 0
118 [HBM2005] G0.627-0.848 mm 17 50 24.9 -28 50 15           ~ 5 0
119 [HBM2005] G0.600-0.871 mm 17 50 26.7 -28 52 23           ~ 5 0
120 AGAL G002.534+00.199 cor 17 50 46 -26 39.8           ~ 21 0
121 [HBM2005] G5.48-0.24 mm 17 59 04.6 -24 20 55           ~ 5 0
122 AGAL G005.509-00.246 cor 17 59 07.783 -24 19 18.52           ~ 13 0
123 [HBM2005] G5.89-0.39 cor 18 00 30.3376 -24 03 54.309           ~ 13 0
124 BGPS G005.903-00.429 cor 18 00 41.0963 -24 04 12.184           ~ 10 0
125 BGPS G005.901-00.443 cor 18 00 44.0309 -24 04 43.436           ~ 9 0
126 [HBM2005] G6.53-0.10 mm 18 00 50.9 -23 21 29           ~ 6 0
127 MSX5C G006.6092-00.0813 NIR 18 00 53.72 -23 17 04.1           ~ 8 0
128 [HBM2005] G8.127+0.255 mm 18 02 52.8 -21 47 54           ~ 5 0
129 [HBM2005] G8.138+0.246 cor 18 02 56.2 -21 47 38           ~ 6 0
130 MMB G008.139+00.226 cor 18 03 00.75 -21 48 09.9           ~ 30 0
131 [HBM2005] G5.948-1.125 mm 18 03 26.3 -24 22 29           ~ 5 0
132 [HBM2005] G5.975-1.146 mm 18 03 34.5 -24 21 41           ~ 5 0
133 [THW2006] G005.97-01.17 a PoC 18 03 37.1 -24 22 13           ~ 7 0
134 [HBM2005] G5.97-1.17 mm 18 03 40.9 -24 22 37           ~ 5 0
135 [HBM2005] G10.10+0.73 mm 18 05 15.6 -19 50 55           ~ 5 0
136 AGAL G009.621+00.194 cor 18 06 15 -20 31.6           ~ 34 0
137 [HBM2005] G8.67-0.36 mm 18 06 18.9 -21 37 21           ~ 6 0
138 [WWS2012] G008.68-00.37 cor 18 06 23.5 -21 36 57           ~ 8 0
139 [HBM2005] G8.644-0.395 mm 18 06 24.6 -21 40 01           ~ 3 0
140 AGAL G008.711-00.367 cor 18 06 27 -21 35.8           ~ 20 0
141 AGAL G008.736-00.362 Y*O 18 06 28.75248 -21 34 22.6632           ~ 25 0
142 [HBM2005] G8.724-0.401a mm 18 06 36.1 -21 36 01           ~ 3 0
143 AGAL G008.706-00.414 Y*O 18 06 37 -21 37.4           ~ 43 0
144 [HBM2005] G8.718-0.410 cor 18 06 37.3 -21 36 33           ~ 4 0
145 [HBM2005] G9.966-0.020 mm 18 07 45.8 -20 19 47           ~ 3 0
146 MMB G009.986-00.028 cor 18 07 50.12 -20 18 56.5           ~ 27 0
147 [HBM2005] G10.001-0.033 mm 18 07 53.2 -20 18 19           ~ 5 0
148 [HBM2005] G10.47+0.02 cor 18 08 37.9 -19 51 41           ~ 7 0
149 AGAL G010.444-00.017 cor 18 08 44.904 -19 54 37.95           ~ 28 0
150 [HBM2005] G10.287-0.110 mm 18 08 45.9 -20 05 34           ~ 6 0
151 MMB G010.287-00.125 Mas 18 08 49.36 -20 05 59.0           ~ 27 0
152 [HBM2005] G10.288-0.127 mm 18 08 52.4 -20 05 58           ~ 5 0
153 AGAL G010.299-00.147 smm 18 08 56.006 -20 05 52.76           ~ 58 0
154 MMB G010.342-00.142 cor 18 08 59.99 -20 03 35.4           ~ 43 0
155 HIGALBM G010.1457-00.3155 cor 18 09 14.419 -20 18 56.44           ~ 4 0
156 [HBM2005] G10.148-0.331 mm 18 09 18.2 -20 19 17           ~ 2 0
157 [HBM2005] G10.191-0.307 cor 18 09 18.2 -20 16 21           ~ 3 0
158 AGAL G010.214-00.306 cor 18 09 20 -20 15.1           ~ 27 0
159 AGAL G010.199-00.316 Y*O 18 09 21 -20 16.2           ~ 15 0
160 [THW2006] G010.15-00.34 cor 18 09 21.8 -20 19 30           ~ 6 0
161 AGAL G010.213-00.322 Y*O 18 09 25 -20 15.7           ~ 27 0
162 [HBM2005] G10.188-0.344 cor 18 09 26.2 -20 17 33           ~ 3 0
163 [HBM2005] G10.164-0.360 mm 18 09 26.7 -20 19 17           ~ 2 0
164 AGAL G010.133-00.377 Y*O 18 09 27 -20 21.5           ~ 16 0
165 [HBM2005] G10.237-0.328 mm 18 09 28.4 -20 14 29           ~ 2 0
166 [WWS2012] G010.21-00.35 cor 18 09 28.9059 -20 16 50.924           ~ 8 0
167 [HBM2005] G10.184-0.370 mm 18 09 31.3 -20 18 29           ~ 2 0
168 BGPSv2 G010.197-00.374 cor 18 09 33.514 -20 17 51.82           ~ 4 0
169 [HBM2005] G10.138-0.419 mm 18 09 34.6 -20 22 21           ~ 2 0
170 AGAL G010.149-00.407 Y*O 18 09 35 -20 21.5           ~ 19 0
171 AGAL G010.189-00.387 Y*O 18 09 36 -20 18.8           ~ 21 0
172 [HBM2005] G10.165-0.403 mm 18 09 36.4 -20 20 29           ~ 2 0
173 AGAL G010.184-00.404 Y*O 18 09 39 -20 19.6           ~ 14 0
174 AGAL G010.614-00.331 Y*O 18 10 15.62 -19 54 46.6           ~ 21 0
175 [UFM2015] G010.625-00.339 cor 18 10 18.826 -19 54 24.76           ~ 19 0
176 [THW2006] G009.88-00.75 a cor 18 10 19.2 -20 45 31           ~ 8 0
177 [HBM2005] G9.924-0.749 mm 18 10 24.1 -20 43 09           ~ 5 0
178 [HBM2005] G10.62-0.38 mm 18 10 29.4 -19 55 41           ~ 6 0
179 AGAL G010.621-00.442 Y*O 18 10 41 -19 57.7           ~ 23 0
180 [HBM2005] G11.075-0.384 mm 18 11 24.4 -19 32 04           ~ 5 0
181 IRAS 18085-1931 Y*O 18 11 31.98 -19 30 41.7           ~ 36 0
182 [THW2006] G011.11-00.34 b smm 18 11 36.2 -19 30 48           ~ 6 0
183 AGAL G012.888+00.489 cor 18 11 51.52 -17 31 28.9           ~ 45 0
184 [HBM2005] G11.948-0.003 mm 18 11 52.9 -18 36 03           ~ 4 0
185 AGAL G012.916+00.492 Y*O 18 11 54.00 -17 29 59.0           ~ 27 0
186 OH 012.03-00.04 Y*O 18 12 01.8400 -18 31 55.800           ~ 91 0
187 MMB G011.903-00.102 Mas 18 12 02.70 -18 40 24.7           ~ 13 0
188 AGAL G011.902-00.141 cor 18 12 11 -18 41.6           ~ 48 0
189 [HBM2005] G11.861-0.183 mm 18 12 15.6 -18 44 58           ~ 5 0
190 BGPSv2 G011.938-00.153 smm 18 12 17.174 -18 40 02.41           ~ 6 0
191 AGAL G011.942-00.156 cor 18 12 19 -18 39.9           ~ 20 0
192 MMB G012.199-00.033 cor 18 12 23.44 -18 22 50.7           ~ 36 1
193 [HBM2005] G11.956-0.177 mm 18 12 25.7 -18 39 46           ~ 3 0
194 [HBM2005] G12.20-0.09 cor 18 12 39.2 -18 24 17           ~ 7 0
195 [WWS2012] G012.20-00.12 cor 18 12 41.6 -18 24 47           ~ 4 0
196 MMB G012.202-00.120 Mas 18 12 42.93 -18 25 11.8           ~ 28 0
197 AGAL G012.214-00.119 Y*O 18 12 44.2 -18 24 23           ~ 18 0
198 MMB G011.992-00.272 Mas 18 12 50.6929 -18 40 36.032           ~ 13 0
199 [HBM2005] G12.43-0.05 cor 18 12 56.4 -18 11 04           ~ 6 0
200 [HBM2005] G12.68-0.18 cor 18 13 55 -18 01.8           ~ 39 0
201 [WWS2012] G011.92-00.61 cor 18 13 58.7 -18 54 23           ~ 9 0
202 [HBM2005] G11.93-0.61 cor 18 14 00.9 -18 53 27           ~ 6 0
203 [WWS2012] G012.72-00.22 cor 18 14 07.1324 -18 00 36.403           ~ 16 0
204 HIGALBM G012.8847-00.2221 smm 18 14 28.205 -17 52 09.75           ~ 4 0
205 [HBM2005] G12.892-0.226 mm 18 14 30.0 -17 51 52           ~ 3 0
206 AGAL G012.899-00.241 Y*O 18 14 34 -17 51.9           ~ 21 0
207 AGAL G013.872+00.281 cor 18 14 35.81 -16 45 33.8           ~ 45 1
208 AGAL G012.858-00.272 cor 18 14 36 -17 55.1           ~ 28 0
209 BGPS G012.909-00.260 cor 18 14 39.5540 -17 51 57.776           ~ 15 0
210 [HBM2005] G12.878-0.226 mm 18 14 41.7 -17 54 24           ~ 3 0
211 [HBM2005] G12.897-0.281 mm 18 14 42.9 -17 53 12           ~ 3 0
212 JCMTLSP J181444.3-175227 Rad 18 14 44.1 -17 52 17           ~ 7 0
213 [HBM2005] G12.938-0.272 mm 18 14 45.7 -17 50 48           ~ 3 0
214 IRAS 18134-1942 HII 18 16 22.1327 -19 41 27.219           ~ 72 0
215 [UFM2015] G014.608+00.014 cor 18 17 02.5026 -16 14 40.128           ~ 16 0
216 JCMTSE J181911.9-204726 smm 18 19 12.7 -20 47 31           ~ 10 0
217 [HBM2005] G15.022-0.618 mm 18 20 10.3 -16 10 35           ~ 2 0
218 JCMTSE J182018.1-161401 cor 18 20 17.60 -16 13 55.0           ~ 5 0
219 [HBM2005] G15.027-0.651 mm 18 20 18.1 -16 11 15           ~ 2 0
220 [HBM2005] G15.054-0.641 mm 18 20 19.2 -16 09 31           ~ 2 0
221 JCMTSF J182021.0-161437 smm 18 20 21 -16 14.6           ~ 4 0
222 JCMTSF J182021.0-161237 Rad 18 20 21.3 -16 12 37           ~ 5 0
223 [HBM2005] G14.99-0.70 mm 18 20 23.1 -16 14 43           ~ 3 0
224 [HBM2005] G15.03-0.67 mm 18 20 23.1 -16 11 16           ~ 5 0
225 [HBM2005] G15.009-0.688 mm 18 20 24.2 -16 13 15           ~ 2 0
226 [HBM2005] G15.005-0.695 mm 18 20 25.3 -16 13 39           ~ 2 0
227 [HBM2005] G15.079-0.663 mm 18 20 27.0 -16 08 51           ~ 2 0
228 [HBM2005] G15.016-0.702 mm 18 20 28.1 -16 13 15           ~ 2 0
229 [HBM2005] G15.029-0.703 mm 18 20 29.8 -16 12 35           ~ 2 0
230 AGAL G015.088-00.674 smm 18 20 31 -16 08.6           ~ 8 0
231 [HBM2005] G15.098-0.681 mm 18 20 33.1 -16 08 19           ~ 2 0
232 EGO G016.59-0.05 HII 18 21 07.9 -14 31 53           ~ 129 0
233 AGAL G016.586-00.051 cor 18 21 09.067 -14 31 49.18           ~ 39 0
234 SSTGLMC G016.5783-00.0814 Y*O 18 21 15.046 -14 33 02.41           ~ 33 0
235 [HBM2005] G18.087-0.292 mm 18 24 56.0 -13 19 03           ~ 2 0
236 [HBM2005] G18.095-0.299 mm 18 24 58.6 -13 18 47           ~ 2 0
237 AGAL G018.103-00.306 Y*O 18 25 01 -13 18.5           ~ 12 0
238 [WWS2012] G018.11-00.32 cor 18 25 06 -13 18.6           ~ 12 0
239 [WWS2012] G019.61-00.14 cor 18 27 17.2650 -11 53 45.320           ~ 15 0
240 [HBM2005] G19.607-0.234 cor 18 27 38.2 -11 56 38           ~ 6 0
241 [HBM2005] G21.87+0.01 mm 18 31 02.1 -09 49 14           ~ 6 0
242 WFS 22 smm 18 31 43.4 -09 22 26           ~ 8 0
243 BGPSv2 G022.353+00.067 cor 18 31 43.93 -09 22 13.3           ~ 8 0
244 HIGALBM G023.6888+00.1597 smm 18 33 53.405 -08 08 42.50           ~ 6 0
245 [THW2006] G023.708+00.169SMM smm 18 33 53.5 -08 07 25           ~ 6 0
246 [HBM2005] G24.450+0.489 mm 18 34 07.6 -07 19 05           ~ 3 0
247 [HBM2005] G24.47+0.49 mm 18 34 10.3 -07 17 45           ~ 4 0
248 [THW2006] G025.650+01.049SMM smm 18 34 21.1 -05 59 43           ~ 6 0
249 SCOPE G023.95+00.16 smm 18 34 21.7 -07 54 47           ~ 4 0
250 [HBM2005] G23.281-0.201 mm 18 34 25.4 -08 40 23           ~ 2 0
251 AGAL G023.954+00.151 smm 18 34 25.6 -07 54 48           ~ 11 0
252 [HBM2005] G23.268-0.210 mm 18 34 25.9 -08 41 19           ~ 2 0
253 [HBM2005] G24.012+0.173 mm 18 34 26.5 -07 51 09           ~ 2 0
254 [HBM2005] G23.976+0.150 mm 18 34 27.6 -07 53 41           ~ 2 0
255 [HBM2005] G23.960+0.137 mm 18 34 28.7 -07 54 53           ~ 2 0
256 [HBM2005] G23.987+0.148 mm 18 34 29.2 -07 53 09           ~ 2 0
257 [WWS2012] G023.26-00.25 cor 18 34 31.4 -08 42 46           ~ 18 0
258 [HBM2005] G24.016+0.150 mm 18 34 31.9 -07 51 33           ~ 2 0
259 [HBM2005] G23.268-0.257 cor 18 34 36.197 -08 42 26.51           ~ 16 0
260 AGAL G023.437-00.182 smm 18 34 39 -08 31.6           ~ 31 0
261 Caswell CH3OH 023.437-00.184 Mas 18 34 39.270 -08 31 39.00           ~ 5 0
262 SCAMPS G23.41-0.23 smm 18 34 45.74 -08 34 21.2           ~ 6 0
263 AGAL G023.419-00.232 Y*O 18 34 48.1 -08 33 57           ~ 13 0
264 [HBM2005] G23.319-0.298 cor 18 34 50.573 -08 41 00.85           ~ 15 0
265 [HBM2005] G23.754+0.095 mm 18 36 06.1 -07 13 47           ~ 5 0
266 [HBM2005] G24.792+0.099 mm 18 36 09.4 -07 11 39           ~ 2 0
267 RRF 159 cor 18 36 12.4 -07 12 14           ~ 46 0
268 CORNISH G024.8497+00.0881 HII 18 36 18.18 -07 08 51.3           ~ 7 0
269 [HBM2005] G24.850+0.082 mm 18 36 19.5 -07 09 00           ~ 2 0
270 AGAL G024.918+00.087 cor 18 36 25.8 -07 05 10           ~ 21 1
271 MSX6C G025.8015-00.1570 Y*O 18 38 56.38896 -06 24 53.0784           ~ 35 0
272 [PLW2012] G025.835-00.179+092.7 cor 18 39 04.0773 -06 24 06.024           ~ 18 0
273 BGPSv2 G028.149-00.004 cor 18 42 42.502 -04 15 34.44           ~ 7 0
274 AGAL G028.199-00.049 cor 18 42 58 -04 14.0           ~ 46 0
275 [HBM2005] G28.198-0.063 mm 18 43 00.8 -04 14 28           ~ 2 0
276 [WWS2012] G028.20-00.07 cor 18 43 02.98 -04 14 52.8           ~ 6 0
277 [HBM2005] G28.28-0.35 mm 18 44 14.2 -04 17 59           ~ 7 0
278 [THW2006] G028.29-00.36 a smm 18 44 22.2 -04 17 39           ~ 8 0
279 BGPS G029.888-00.000 cor 18 45 53.1333 -02 42 27.291           ~ 9 0
280 [HBM2005] G29.889-0.006 mm 18 45 54.4 -02 42 37           ~ 4 0
281 AGAL G029.921-00.014 cor 18 46 00 -02 41.2           ~ 23 0
282 [HBM2005] G29.86-0.04 mm 18 46 00.2 -02 45 09           ~ 9 0
283 [HBM2005] G29.861-0.053 mm 18 46 01.3 -02 45 25           ~ 5 0
284 [HBM2005] G29.853-0.062 mm 18 46 02.4 -02 45 57           ~ 5 0
285 NAME G29.96-0.02 HMPO cor 18 46 04.0 -02 39 22           ~ 46 0
286 [HBM2005] G29.930-0.040 mm 18 46 06.1 -02 41 25           ~ 4 0
287 [HBM2005] G29.969-0.033 mm 18 46 08.8 -02 39 09           ~ 2 0
288 AGAL G029.976-00.047 cor 18 46 12.25 -02 39 05.9           ~ 31 0
289 [HBM2005] G30.716-0.082 cor 18 47 41.3 -02 00 33           ~ 5 0
290 [WWS2012] G035.03+00.35 cor 18 54 00.7975 +02 01 24.083           ~ 23 0
291 [HBM2005] G35.575+0.010 mm 18 56 13.5 +02 21 39           ~ 2 0
292 [HBM2005] G35.574+0.007 mm 18 56 14.0 +02 21 15           ~ 2 0
293 [HBM2005] G35.564-0.037 mm 18 56 22.4 +02 19 30           ~ 2 0
294 [HBM2005] G35.585-0.026 mm 18 56 22.4 +02 20 58           ~ 2 0
295 AGAL G035.602-00.019 Y*O 18 56 22.6 +02 22 02           ~ 7 0
296 AGAL G035.579-00.031 cor 18 56 22.6865 +02 20 19.057           ~ 36 0
297 AGAL G037.479-00.106 cor 19 00 07 +03 59.9           ~ 24 0
298 [THW2006] G037.545-00.113SMM smm 19 00 16.3 +04 03 11           ~ 4 0
299 QSO B1921-293 BLL 19 24 51.05595254 -29 14 30.1210248   18.71 18.21 15.07   ~ 918 1
300 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1332 2

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