2009ApJ...698..324R

Query : 2009ApJ...698..324R

2009ApJ...698..324R - Astrophys. J., 698, 324-349 (2009/June-2)

Detection of structure in infrared-dark clouds with Spitzer: characterizing star formation in the molecular ring.

RAGAN S.E., BERGIN E.A. and GUTERMUTH R.A.

Abstract (from CDS):

We have conducted a survey of a sample of infrared-dark clouds (IRDCs) with the Spitzer Space Telescope in order to explore their mass distribution. We present a method for tracing mass using dust absorption against the bright Galactic background at 8 µm. The IRDCs in this sample are comprised of tens of clumps, ranging in sizes from 0.02 to 0.3 pc in diameter and masses from 0.5 to a few 103 M☉, the broadest dynamic range in any clump mass spectrum study to date. Structure with this range in scales confirms that IRDCs are the precursors to stellar clusters in an early phase of fragmentation. Young stars are distributed in the vicinity of the IRDCs, but the clumps are typically not associated with stars and appear prestellar in nature. We find an IRDC clump mass spectrum with a slope of α = 1.76±0.05 for masses from 30 M☉ to 3000 M☉. This slope is consistent with numerous studies, culled from a variety of observational techniques, of massive star formation regions and is close to the mass function of Galactic stellar clusters and star clusters in other galaxies. We assert that the shape of the mass function is an intrinsic and universal feature of massive star formation regions that are the birth sites of stellar clusters. As these clouds evolve and their constituent clumps fragment, the mass spectrum will steepen and eventually assume the form of the core mass function that is observed locally.

Abstract Copyright: ∼

Journal keyword(s): ISM: clouds - stars: formation

VizieR on-line data: <Available at CDS (J/ApJ/698/324): table1.dat table2.dat table6.dat>

Nomenclature: Table 2: [RBG2009] GLLL.ll+B.bb NN N=309. Table 6: [RBG2009] GLLL.ll+B.bb CNN N=451.

Simbad objects: 337

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Number of rows : 337
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11160 1
2 NAME Perseus Cloud SFR 03 35.0 +31 13           ~ 1366 0
3 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4421 0
4 LDN 1544 DNe 05 04 16.6 +25 10 48           ~ 864 0
5 NAME [BM89] L1544 cor 05 04 22.5 +25 11 36           ~ 437 1
6 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17450 0
7 M 42 HII 05 35 17 -05 23.4           ~ 4080 0
8 NAME Ori A MoC 05 38 -07.1           ~ 3014 0
9 NAME Orion Molecular Cloud MoC 05 56 -01.8           ~ 1100 1
10 GAL 332.80-00.60 HII 16 19 47 -51 04.1           ~ 99 1
11 * rho Oph ** 16 25 35.11766 -23 26 49.8150 4.30 4.85 4.63 4.27 3.96 B2IV+B2V 648 0
12 NGC 6334 HII 17 20 53 -36 07.9           ~ 682 0
13 NAME the Pipe Nebula DNe 17 30 -25.0           ~ 403 1
14 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14430 0
15 2MASS J17593596-2400437 Y*O 17 59 35.962 -24 00 43.72           ~ 1 0
16 2MASS J17593924-2358314 Y*O 17 59 39.247 -23 58 31.44           ~ 2 0
17 [RBG2009] G005.85-0.23 1 Y*O 17 59 41.27 -24 03 25.8           ~ 1 0
18 IRAS 17565-2400 Y*O 17 59 42.4353570672 -24 00 29.429951364           ~ 1 0
19 2MASS J17594605-2400150 Y*O 17 59 46.05168 -24 00 15.0048           ~ 3 0
20 2MASS J17594644-2356535 Y*O 17 59 46.444 -23 56 53.53           ~ 1 0
21 2MASS J17594766-2401330 Y*O 17 59 47.666 -24 01 33.05           ~ 1 0
22 2MASS J17594807-2400126 Y*O 17 59 48.070 -24 00 12.70           ~ 1 0
23 2MASS J17594913-2403504 Y*O 17 59 49.140 -24 03 50.45           ~ 1 0
24 [RBP2006] G05.85-0.23 MoC 17 59 49.500 -24 00 50.25           ~ 8 0
25 2MASS J17594988-2403448 Y*O 17 59 49.882 -24 03 44.90           ~ 1 0
26 2MASS J17595039-2356597 Y*O 17 59 50.400 -23 56 59.76           ~ 1 0
27 2MASS J17595157-2357427 Y*O 17 59 51.5802934872 -23 57 42.500747412           ~ 1 0
28 2MASS J17595181-2402041 Y*O 17 59 51.818 -24 02 04.15           ~ 1 0
29 2MASS J17595222-2359035 Y*O 17 59 52.226 -23 59 03.52           ~ 1 0
30 2MASS J17595359-2357396 Y*O 17 59 53.5885925280 -23 57 39.272360832           ~ 1 0
31 2MASS J17595408-2359430 Y*O 17 59 54.089 -23 59 43.01           ~ 1 0
32 2MASS J17595530-2400393 Y*O 17 59 55.3107248568 -24 00 39.225280932           ~ 1 0
33 2MASS J17595786-2359121 Y*O 17 59 57.864 -23 59 12.17           ~ 1 0
34 2MASS J17595850-2359253 Y*O 17 59 58.5112375584 -23 59 25.217866392           ~ 1 0
35 2MASS J18000208-2359413 Y*O 18 00 02.0800979568 -23 59 41.135555328           ~ 1 0
36 2MASS J18000214-2359348 Y*O 18 00 02.144 -23 59 34.83           ~ 1 0
37 2MASS J18000231-2358563 Y*O 18 00 02.314 -23 58 56.32           ~ 1 0
38 [RBG2009] G005.85-0.23 11 Y*O 18 00 02.83 -24 00 07.7           ~ 1 0
39 2MASS J18000404-2358050 Y*O 18 00 04.0444675752 -23 58 04.733456700           ~ 1 0
40 ATO J270.3925-23.8483 Y*O 18 01 34.2019824792 -23 50 53.991488076           ~ 3 0
41 2MASS J18013537-2348173 Y*O 18 01 35.3783106456 -23 48 17.443149840           ~ 1 0
42 2MASS J18013593-2346266 Y*O 18 01 35.9307349224 -23 46 26.714726220           ~ 1 0
43 2MASS J18013631-2348211 Y*O 18 01 36.3102608208 -23 48 21.224591208           ~ 1 0
44 2MASS J18013733-2347169 Y*O 18 01 37.3376450760 -23 47 16.929301776           ~ 3 0
45 2MASS J18013789-2344051 Y*O 18 01 37.8892986216 -23 44 05.383551264           ~ 1 0
46 2MASS J18013860-2347598 Y*O 18 01 38.5703229096 -23 47 59.815044744           ~ 1 0
47 2MASS J18013937-2344064 Y*O 18 01 39.3860894496 -23 44 06.477547308           ~ 1 0
48 2MASS J18014107-2350223 Y*O 18 01 41.074 -23 50 22.39           ~ 1 0
49 2MASS J18014210-2350192 Y*O 18 01 42.101 -23 50 19.26           ~ 1 0
50 2MASS J18014375-2349389 Y*O 18 01 43.754 -23 49 39.00           ~ 2 0
51 [RBP2006] G06.26-0.51 MoC 18 01 46.570 -23 47 51.61           ~ 3 0
52 2MASS J18015183-2346497 Y*O 18 01 51.8346662328 -23 46 49.670813460           ~ 2 0
53 [RBG2009] G006.26-0.51 24 Y*O 18 01 53.26 -23 45 47.4           ~ 1 0
54 2MASS J18015326-2345183 Y*O 18 01 53.270 -23 45 18.37           ~ 1 0
55 2MASS J18015411-2345456 Y*O 18 01 54.1019791680 -23 45 45.648819540           ~ 1 0
56 2MASS J18015521-2346451 Y*O 18 01 55.2276457200 -23 46 45.234569604           ~ 1 0
57 [RBG2009] G006.26-0.51 27 Y*O 18 01 55.61 -23 44 44.4           ~ 1 0
58 2MASS J18015562-2346380 Y*O 18 01 55.6392098736 -23 46 38.061604452           ~ 1 0
59 2MASS J18015632-2351096 Y*O 18 01 56.3217920256 -23 51 09.573829704           ~ 1 0
60 2MASS J18015646-2350309 Y*O 18 01 56.467 -23 50 30.92           ~ 1 0
61 2MASS J18015681-2348315 Y*O 18 01 56.819 -23 48 31.53           ~ 1 0
62 [RBG2009] G006.26-0.51 2 Y*O 18 01 56.82 -23 47 33.1           ~ 1 0
63 2MASS J18015683-2348050 Y*O 18 01 56.8399613712 -23 48 04.994468964           ~ 1 0
64 [RBG2009] G006.26-0.51 10 Y*O 18 01 57.38 -23 48 36.8           ~ 1 0
65 [RBG2009] G006.26-0.51 16 Y*O 18 01 57.42 -23 47 20.5           ~ 1 0
66 2MASS J18015745-2347493 Y*O 18 01 57.458 -23 47 49.38           ~ 1 0
67 2MASS J18015745-2347027 Y*O 18 01 57.459 -23 47 02.75           ~ 1 0
68 2MASS J18015785-2347098 Y*O 18 01 57.851 -23 47 09.89           ~ 2 0
69 2MASS J18020042-2346406 Y*O 18 02 00.426 -23 46 40.62           ~ 1 0
70 2MASS J18053531-2103143 Y*O 18 05 35.312 -21 03 14.33           ~ 1 0
71 2MASS J18053668-2058103 Y*O 18 05 36.689 -20 58 10.38           ~ 2 0
72 2MASS J18053818-2102218 Y*O 18 05 38.183 -21 02 21.80           ~ 1 0
73 [RBG2009] G009.16+0.06 12 Y*O 18 05 46.39 -20 55 51.8           ~ 1 0
74 [RBP2006] G09.16+0.06 MoC 18 05 46.710 -20 59 51.77           ~ 3 0
75 2MASS J18054750-2056250 Y*O 18 05 47.4948023136 -20 56 25.105248528           ~ 1 0
76 [RBG2009] G009.16+0.06 1 Y*O 18 05 49.67 -21 01 16.9           ~ 1 0
77 2MASS J18055026-2100373 Y*O 18 05 50.266 -21 00 37.38           ~ 1 0
78 2MASS J18055088-2059315 Y*O 18 05 50.8632630720 -20 59 31.335124920           ~ 1 0
79 2MASS J18055318-2057086 Y*O 18 05 53.1866665872 -20 57 08.673921864           ~ 1 0
80 2MASS J18055578-2057340 Y*O 18 05 55.781 -20 57 34.06           ~ 1 0
81 2MASS J18055659-2100192 Y*O 18 05 56.595 -21 00 19.21           ~ 1 0
82 2MASS J18055740-2057013 Y*O 18 05 57.409 -20 57 01.36           ~ 1 0
83 2MASS J18060033-2058250 Y*O 18 06 00.335 -20 58 25.06           ~ 1 0
84 2MASS J18063689-2058406 Y*O 18 06 36.8904429936 -20 58 40.607707908           ~ 2 0
85 [RBG2009] G009.28-0.15 8 Y*O 18 06 39.68 -21 01 47.1           ~ 1 0
86 [RBG2009] G009.28-0.15 11 Y*O 18 06 40.16 -21 00 53.3           ~ 1 0
87 [RBG2009] G009.28-0.15 1 Y*O 18 06 41.48 -20 59 32.5           ~ 1 0
88 [RMB2008] G009.2877-00.1130 Y*O 18 06 42.07 -20 58 01.9           ~ 2 0
89 2MASS J18064271-2056536 Y*O 18 06 42.711 -20 56 53.66           ~ 1 0
90 2MASS J18064732-2058072 Y*O 18 06 47.3284414080 -20 58 07.390280424           ~ 1 0
91 2MASS J18064954-2101522 Y*O 18 06 49.5520964736 -21 01 52.712705604           ~ 1 0
92 [RBP2006] G09.28-0.15 MoC 18 06 49.960 -20 59 31.46           ~ 5 0
93 2MASS J18065016-2102475 Y*O 18 06 50.1689369280 -21 02 47.637793248           ~ 1 0
94 2MASS J18065018-2057523 Y*O 18 06 50.1926298168 -20 57 52.747441776           ~ 1 0
95 2MASS J18065038-2102399 Y*O 18 06 50.386 -21 02 39.96           ~ 1 0
96 2MASS J18065104-2101119 Y*O 18 06 51.0465238728 -21 01 11.932824360           ~ 1 0
97 2MASS J18065338-2101414 Y*O 18 06 53.384 -21 01 41.50           ~ 1 0
98 2MASS J18065370-2059216 Y*O 18 06 53.7082297680 -20 59 21.810820092           ~ 1 0
99 2MASS J18065374-2102580 Y*O 18 06 53.750 -21 02 58.10           ~ 1 0
100 2MASS J18065399-2102010 Y*O 18 06 54.0006941904 -21 02 01.190413644           ~ 1 0
101 2MASS J18065690-2059090 Y*O 18 06 56.9269205016 -20 59 09.174852564           ~ 1 0
102 IRAS 18044-2026 OH* 18 07 23.40168 -20 25 53.2668           O-rich 6 1
103 2MASS J18072426-2028455 Y*O 18 07 24.264 -20 28 45.55           ~ 1 0
104 [RMB2008] G009.8732+00.0012 Y*O 18 07 29.61 -20 24 00.6           ~ 2 0
105 [RBG2009] G009.86-0.04 19 Y*O 18 07 30.08 -20 25 43.9           ~ 1 0
106 2MASS J18073010-2027587 Y*O 18 07 30.100 -20 27 58.71           ~ 1 0
107 2MASS J18073042-2029239 Y*O 18 07 30.422 -20 29 23.90           ~ 1 0
108 [RBG2009] G009.86-0.04 20 Y*O 18 07 32.65 -20 25 23.9           ~ 1 0
109 SSTGLMC G009.8474-00.0322 Y*O 18 07 33.91 -20 26 20.3           ~ 2 0
110 2MASS J18073644-2023001 Y*O 18 07 36.4436600832 -20 23 00.085635816           ~ 1 0
111 [RBP2006] G09.86-0.04 MoC 18 07 36.470 -20 26 05.34           ~ 5 0
112 [RBG2009] G009.86-0.04 6 Y*O 18 07 36.99 -20 26 03.9           ~ 1 0
113 [RBG2009] G009.86-0.04 27 Y*O 18 07 37.93 -20 22 59.2           ~ 1 0
114 [RMB2008] G009.8531-00.0492 Y*O 18 07 38.42 -20 26 31.8           ~ 2 0
115 2MASS J18073940-2026410 Y*O 18 07 39.40584 -20 26 41.0172           ~ 3 0
116 [RBG2009] G009.86-0.04 5 Y*O 18 07 39.53 -20 26 09.8           ~ 1 0
117 2MASS J18074100-2025186 Y*O 18 07 41.007 -20 25 18.63           ~ 1 0
118 2MASS J18074100-2025097 Y*O 18 07 41.009 -20 25 09.74           ~ 1 0
119 2MASS J18074132-2022588 Y*O 18 07 41.328 -20 22 58.85           ~ 1 0
120 [RBG2009] G009.86-0.04 7 Y*O 18 07 42.12 -20 23 34.3           ~ 1 0
121 2MASS J18074263-2027360 Y*O 18 07 42.6383542008 -20 27 35.946230040           ~ 1 0
122 2MASS J18074364-2023444 Y*O 18 07 43.644 -20 23 44.42           ~ 1 0
123 2MASS J18074422-2026454 Y*O 18 07 44.2300420056 -20 26 45.365335404           ~ 1 0
124 2MASS J18074455-2027063 Y*O 18 07 44.553 -20 27 06.33           ~ 1 0
125 [RBG2009] G009.86-0.04 23 Y*O 18 07 45.25 -20 24 08.3           ~ 1 0
126 2MASS J18074550-2027266 Y*O 18 07 45.508 -20 27 26.62           ~ 1 0
127 [RBG2009] G009.86-0.04 13 Y*O 18 07 47.05 -20 27 45.0           ~ 1 0
128 2MASS J18074719-2027446 Y*O 18 07 47.2005410112 -20 27 44.349716052           ~ 1 0
129 2MASS J18074777-2028238 Y*O 18 07 47.7687060312 -20 28 23.913634512           ~ 1 0
130 2MASS J18074823-2023204 Y*O 18 07 48.233 -20 23 20.42           ~ 1 0
131 2MASS J18074954-2025177 Y*O 18 07 49.5470852376 -20 25 17.689179720           ~ 1 0
132 2MASS J18074971-2027476 Y*O 18 07 49.714 -20 27 47.70           ~ 1 0
133 2MASS J18074989-2027503 Y*O 18 07 49.891 -20 27 50.37           ~ 1 0
134 [RBG2009] G012.50-0.22 1 Y*O 18 13 26.53 -18 15 28.5           ~ 1 0
135 2MASS J18132737-1811230 Y*O 18 13 27.3618457608 -18 11 23.106696360           ~ 1 0
136 2MASS J18132858-1812581 Y*O 18 13 28.5874129440 -18 12 58.210415604           ~ 1 0
137 2MASS J18132903-1811300 Y*O 18 13 29.037 -18 11 30.07           ~ 1 0
138 2MASS J18133036-1813583 Y*O 18 13 30.3713095416 -18 13 58.457382096           ~ 2 0
139 [RBG2009] G012.50-0.22 13 Y*O 18 13 31.59 -18 12 23.0           ~ 1 0
140 2MASS J18133199-1813010 Y*O 18 13 31.9548388310 -18 13 01.708934354           ~ 1 0
141 2MASS J18133365-1811272 Y*O 18 13 33.659 -18 11 27.26           ~ 1 0
142 2MASS J18133370-1811170 Y*O 18 13 33.708 -18 11 17.07           ~ 1 0
143 2MASS J18133403-1811234 Y*O 18 13 34.034 -18 11 23.42           ~ 1 0
144 2MASS J18133444-1810542 Y*O 18 13 34.4434153200 -18 10 54.239509848           ~ 1 0
145 2MASS J18133499-1811549 Y*O 18 13 34.998 -18 11 54.96           ~ 1 0
146 2MASS J18133817-1811291 Y*O 18 13 38.174 -18 11 29.16           ~ 1 0
147 2MASS J18133837-1812004 Y*O 18 13 38.3833197768 -18 12 00.489959532           ~ 1 0
148 2MASS J18133917-1808333 Y*O 18 13 39.179 -18 08 33.32           ~ 2 0
149 2MASS J18134098-1815334 Y*O 18 13 40.986 -18 15 33.47           ~ 1 0
150 SSTGLMC G012.4933-00.2231 Y*O 18 13 41.16 -18 12 48.6           ~ 2 0
151 [RBP2006] G12.50-0.22 MoC 18 13 41.440 -18 12 32.16           ~ 3 0
152 [RBG2009] G012.50-0.22 12 Y*O 18 13 41.65 -18 12 36.6           ~ 1 0
153 [RBG2009] G012.50-0.22 5 Y*O 18 13 41.71 -18 12 29.6           ~ 1 0
154 2MASS J18134290-1812409 Y*O 18 13 42.909 -18 12 40.91           ~ 2 0
155 2MASS J18134742-1809209 Y*O 18 13 47.422 -18 09 20.97           ~ 1 0
156 2MASS J18134786-1814405 Y*O 18 13 47.862 -18 14 40.51           ~ 1 0
157 2MASS J18134872-1812379 Y*O 18 13 48.729 -18 12 37.93           ~ 1 0
158 IRAS 18109-1810 Y*O 18 13 48.8931691104 -18 09 18.584029044           ~ 1 0
159 2MASS J18135082-1811312 Y*O 18 13 50.820 -18 11 31.22           ~ 1 0
160 2MASS J18135127-1811546 Y*O 18 13 51.277 -18 11 54.65           ~ 1 0
161 2MASS J18135454-1813514 Y*O 18 13 54.546 -18 13 51.43           ~ 2 0
162 SSTGLMC G012.5370-00.2619 Y*O 18 13 55.05 -18 11 37.5           ~ 3 0
163 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1615 0
164 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1100 2
165 2MASS J18344205-0838005 Y*O 18 34 42.058 -08 38 00.52           ~ 1 0
166 2MASS J18344323-0836286 Y*O 18 34 43.232 -08 36 28.65           ~ 1 0
167 2MASS J18344355-0839514 Y*O 18 34 43.557 -08 39 51.49           ~ 1 0
168 2MASS J18344451-0839037 Y*O 18 34 44.5118905656 -08 39 03.790866276           ~ 1 0
169 [RBG2009] G023.37-0.29 18 Y*O 18 34 44.87 -08 40 11.9           ~ 1 0
170 2MASS J18344542-0840372 Y*O 18 34 45.428 -08 40 37.26           ~ 1 0
171 2MASS J18344566-0840069 Y*O 18 34 45.664 -08 40 06.94           ~ 1 0
172 2MASS J18344661-0835213 Y*O 18 34 46.5854231040 -08 35 21.950466396           ~ 1 0
173 2MASS J18344795-0838357 Y*O 18 34 47.952 -08 38 35.73           ~ 1 0
174 2MASS J18344811-0839342 Y*O 18 34 48.1334285712 -08 39 34.395810264           ~ 1 0
175 2MASS J18344823-0839248 Y*O 18 34 48.237 -08 39 24.81           ~ 1 0
176 2MASS J18344830-0840210 Y*O 18 34 48.3067697856 -08 40 21.098975988           ~ 1 0
177 [RBG2009] G023.37-0.29 3 Y*O 18 34 48.76 -08 37 29.1           ~ 1 0
178 2MASS J18344907-0838029 Y*O 18 34 49.072 -08 38 02.92           ~ 1 0
179 2MASS J18344947-0836305 Y*O 18 34 49.4777539224 -08 36 30.691869840           ~ 1 0
180 [RBG2009] G023.37-0.29 27 Y*O 18 34 50.02 -08 39 10.3           ~ 1 0
181 SSTGLMC G023.3227-00.2937 Y*O 18 34 50.08 -08 40 44.1           ~ 2 0
182 2MASS J18345033-0840134 Y*O 18 34 50.3240163648 -08 40 13.406111328           ~ 1 0
183 2MASS J18345043-0838048 Y*O 18 34 50.4417677592 -08 38 04.844208336           ~ 1 0
184 2MASS J18345148-0841080 Y*O 18 34 51.480 -08 41 08.09           ~ 1 0
185 2MASS J18345272-0841515 Y*O 18 34 52.725 -08 41 51.57           ~ 2 0
186 2MASS J18345287-0838562 Y*O 18 34 52.873 -08 38 56.24           ~ 1 0
187 2MASS J18345348-0841159 Y*O 18 34 53.489 -08 41 15.92           ~ 1 0
188 [RBP2006] G23.37-0.29 MoC 18 34 53.660 -08 38 08.59           ~ 5 0
189 [RBG2009] G023.37-0.29 6 Y*O 18 34 54.05 -08 34 57.3           ~ 1 0
190 [RBG2009] G023.37-0.29 9 Y*O 18 34 54.1296341304 -08 38 24.865281564           ~ 1 0
191 2MASS J18345487-0836046 Y*O 18 34 54.874 -08 36 04.65           ~ 1 0
192 2MASS J18345503-0834271 Y*O 18 34 55.036 -08 34 27.19           ~ 1 0
193 2MASS J18345552-0835099 Y*O 18 34 55.520 -08 35 09.92           ~ 2 0
194 2MASS J18345584-0837508 Y*O 18 34 55.846 -08 37 50.81           ~ 1 0
195 [RBG2009] G023.37-0.29 40 Y*O 18 34 56.0150841240 -08 36 28.498960080           ~ 1 0
196 2MASS J18345653-0840370 Y*O 18 34 56.532 -08 40 37.07           ~ 1 0
197 SSTGLMC G023.3870-00.2909 Y*O 18 34 56.72 -08 37 13.5           ~ 2 0
198 [RBG2009] G023.37-0.29 7 Y*O 18 34 57.32 -08 34 53.8           ~ 1 0
199 2MASS J18345850-0836115 Y*O 18 34 58.4972781624 -08 36 11.788675524           ~ 1 0
200 2MASS J18345880-0838212 Y*O 18 34 58.800 -08 38 21.22           ~ 1 0
201 2MASS J18345928-0836229 Y*O 18 34 59.2852473168 -08 36 22.915815012           ~ 1 0
202 2MASS J18350000-0840463 Y*O 18 35 00.007 -08 40 46.32           ~ 1 0
203 2MASS J18350004-0836573 Y*O 18 35 00.042 -08 36 57.39           ~ 1 0
204 [RBG2009] G023.37-0.29 22 Y*O 18 35 00.82 -08 39 41.8           ~ 1 0
205 2MASS J18350095-0840098 Y*O 18 35 00.9577883016 -08 40 09.897453732           ~ 1 0
206 2MASS J18350140-0839159 Y*O 18 35 01.4034176160 -08 39 15.939989568           ~ 1 0
207 2MASS J18350266-0837510 Y*O 18 35 02.6727068208 -08 37 51.059974656           ~ 1 0
208 2MASS J18350335-0839217 Y*O 18 35 03.360 -08 39 21.77           ~ 1 0
209 2MASS J18350379-0837273 Y*O 18 35 03.793 -08 37 27.34           ~ 1 0
210 2MASS J18350506-0837034 Y*O 18 35 05.066 -08 37 03.44           ~ 1 0
211 2MASS J18350535-0836084 Y*O 18 35 05.359 -08 36 08.43           ~ 1 0
212 2MASS J18354668-0756507 Y*O 18 35 46.6975701840 -07 56 50.642946060           ~ 1 0
213 2MASS J18354724-0757186 Y*O 18 35 47.246 -07 57 18.68           ~ 1 0
214 2MASS J18354755-0757364 Y*O 18 35 47.557 -07 57 36.49           ~ 1 0
215 SSTGLMC G023.9910-00.2144 Y*O 18 35 47.63 -08 02 57.1           ~ 2 0
216 2MASS J18354814-0841164 Y*O 18 35 48.1751318544 -08 41 16.327426776           ~ 1 0
217 2MASS J18354818-0758248 Y*O 18 35 48.189 -07 58 24.81           ~ 1 0
218 2MASS J18354859-0841294 Y*O 18 35 48.6053837736 -08 41 29.420570940           ~ 1 0
219 [RBG2009] G024.05-0.22 16 Y*O 18 35 49.01 -07 57 42.9           ~ 1 0
220 2MASS J18354941-0837541 Y*O 18 35 49.417 -08 37 54.18           ~ 1 0
221 SSTGLMC G023.4309-00.5183 Y*O 18 35 50.60 -08 41 10.4           ~ 2 0
222 [RBG2009] G024.05-0.22 14 Y*O 18 35 50.82 -07 58 33.1           ~ 1 0
223 [RBG2009] G023.48-0.53 3 Y*O 18 35 50.85 -08 41 08.6           ~ 1 0
224 2MASS J18355097-0759249 Y*O 18 35 50.972 -07 59 24.99           ~ 1 0
225 [RBG2009] G023.48-0.53 7 Y*O 18 35 51.23 -08 41 38.1           ~ 1 0
226 [RBG2009] G023.48-0.53 1 Y*O 18 35 51.33 -08 41 12.2           ~ 1 0
227 SSTGLMC G024.0335-00.2131 Y*O 18 35 52.07 -08 00 39.0           ~ 2 0
228 2MASS J18355258-0759597 Y*O 18 35 52.584 -07 59 59.79           ~ 1 0
229 2MASS J18355393-0803046 Y*O 18 35 53.939 -08 03 04.67           ~ 2 0
230 2MASS J18355398-0759310 Y*O 18 35 53.9569477224 -07 59 31.563050316           ~ 1 0
231 2MASS J18355444-0842580 Y*O 18 35 54.446 -08 42 58.07           ~ 1 0
232 [RBP2006] G24.05-0.22 MoC 18 35 54.610 -07 59 48.07           ~ 8 0
233 [RBG2009] G024.05-0.22 1 Y*O 18 35 54.73 -08 01 30.2           ~ 1 0
234 2MASS J18355542-0759142 Y*O 18 35 55.4082651624 -07 59 14.264029284           ~ 1 0
235 [RBG2009] G023.48-0.53 15 Y*O 18 35 56.05 -08 38 19.4           ~ 1 0
236 2MASS J18355617-0840388 Y*O 18 35 56.175 -08 40 38.88           ~ 1 0
237 2MASS J18355630-0759428 Y*O 18 35 56.304 -07 59 42.87           ~ 1 0
238 2MASS J18355631-0803061 Y*O 18 35 56.3274107376 -08 03 05.733086940           ~ 1 0
239 2MASS J18355674-0802492 Y*O 18 35 56.740 -08 02 49.25           ~ 1 0
240 2MASS J18355764-0757567 Y*O 18 35 57.646 -07 57 56.77           ~ 1 0
241 2MASS J18355787-0802319 Y*O 18 35 57.877 -08 02 31.94           ~ 2 0
242 2MASS J18355829-0756340 Y*O 18 35 58.2836919768 -07 56 33.928552212           ~ 1 0
243 2MASS J18355854-0759214 Y*O 18 35 58.542 -07 59 21.46           ~ 1 0
244 2MASS J18355882-0756583 Y*O 18 35 58.822 -07 56 58.30           ~ 1 0
245 2MASS J18355888-0838037 Y*O 18 35 58.8851438472 -08 38 04.260920100           ~ 1 0
246 [RBG2009] G023.48-0.53 4 Y*O 18 35 59.06 -08 38 58.4           ~ 1 0
247 2MASS J18355927-0800499 Y*O 18 35 59.272 -08 00 49.98           ~ 1 0
248 [RBP2006] G23.48-0.53 MoC 18 35 59.520 -08 38 56.65           ~ 3 0
249 2MASS J18360204-0759317 Y*O 18 36 02.046 -07 59 31.78           ~ 1 0
250 [RBG2009] G023.48-0.53 21 Y*O 18 36 02.39 -08 39 31.6           ~ 1 0
251 2MASS J18360410-0757200 Y*O 18 36 04.105 -07 57 20.06           ~ 1 0
252 2MASS J18360451-0839402 Y*O 18 36 04.511 -08 39 40.23           ~ 1 0
253 2MASS J18360484-0835590 Y*O 18 36 04.844 -08 35 59.04           ~ 1 0
254 2MASS J18360750-0840192 Y*O 18 36 07.5031292352 -08 40 19.540197084           ~ 1 0
255 2MASS J18360872-0841355 Y*O 18 36 08.7408815160 -08 41 35.553305220           ~ 1 0
256 2MASS J18360875-0835301 Y*O 18 36 08.7707843040 -08 35 30.099644592           ~ 1 0
257 2MASS J18361078-0837565 Y*O 18 36 10.7716078584 -08 37 56.776653156           ~ 1 0
258 2MASS J18361080-0837451 Y*O 18 36 10.802 -08 37 45.17           ~ 1 0
259 2MASS J18361410-0839325 Y*O 18 36 14.0980957656 -08 39 32.625264096           ~ 1 0
260 2MASS J18550052+0136020 Y*O 18 55 00.526 +01 36 02.07           ~ 1 0
261 IRAS 18524+0126 Y*O 18 55 00.9366116376 +01 30 13.310343468           ~ 10 0
262 [RBG2009] G034.74-0.12 2 Y*O 18 55 01.04 +01 30 23.7           ~ 1 0
263 [RBG2009] G034.74-0.12 11 Y*O 18 55 01.56 +01 31 14.7           ~ 1 0
264 2MASS J18550186+0135155 Y*O 18 55 01.8698206128 +01 35 15.493142544           ~ 1 0
265 2MASS J18550259+0131114 Y*O 18 55 02.600 +01 31 11.43           ~ 1 0
266 2MASS J18550343+0134083 Y*O 18 55 03.434 +01 34 08.33           ~ 1 0
267 [RBG2009] G034.74-0.12 5 Y*O 18 55 05.20 +01 34 36.2           ~ 1 0
268 2MASS J18550555+0133411 Y*O 18 55 05.558 +01 33 41.12           ~ 1 0
269 2MASS J18550610+0130519 Y*O 18 55 06.1188911448 +01 30 51.791944644           ~ 1 0
270 2MASS J18550694+0135089 Y*O 18 55 06.946 +01 35 08.92           ~ 1 0
271 2MASS J18550731+0133443 Y*O 18 55 07.314 +01 33 44.35           ~ 1 0
272 2MASS J18550969+0129517 Y*O 18 55 09.697 +01 29 51.76           ~ 1 0
273 [RBP2006] G34.74-0.12 MoC 18 55 10.110 +01 33 09.25           ~ 5 0
274 [RBG2009] G034.74-0.12 20 Y*O 18 55 10.21 +01 33 46.1           ~ 1 0
275 2MASS J18551050+0135055 Y*O 18 55 10.506 +01 35 05.58           ~ 1 0
276 2MASS J18551066+0132461 Y*O 18 55 10.660 +01 32 46.19           ~ 1 0
277 2MASS J18551126+0132250 Y*O 18 55 11.265 +01 32 25.03           ~ 1 0
278 2MASS J18551148+0131304 Y*O 18 55 11.486 +01 31 30.49           ~ 1 0
279 [RBG2009] G034.74-0.12 34 Y*O 18 55 12.21 +01 30 37.0           ~ 1 0
280 IRAS 18526+0130 Y*O 18 55 12.4514028264 +01 34 03.625142700           ~ 5 0
281 [RBG2009] G034.74-0.12 3 Y*O 18 55 12.78 +01 33 02.1           ~ 1 0
282 2MASS J18551303+0132360 Y*O 18 55 13.0325592000 +01 32 36.077671932           ~ 1 0
283 [RBG2009] G034.74-0.12 16 Y*O 18 55 13.06 +01 32 54.9           ~ 1 0
284 2MASS J18551395+0135043 Y*O 18 55 13.956 +01 35 04.33           ~ 1 0
285 2MASS J18551489+0130247 Y*O 18 55 14.893 +01 30 24.76           ~ 1 0
286 2MASS J18551519+0135341 Y*O 18 55 15.1640325024 +01 35 34.004156640           ~ 1 0
287 2MASS J18551675+0134389 Y*O 18 55 16.760 +01 34 38.99           ~ 1 0
288 2MASS J18551733+0133261 Y*O 18 55 17.3366334864 +01 33 26.042195952           ~ 1 0
289 [RBG2009] G034.74-0.12 31 Y*O 18 55 17.48 +01 35 41.9           ~ 1 0
290 2MASS J18551806+0132430 Y*O 18 55 18.069 +01 32 43.03           ~ 1 0
291 2MASS J18551846+0133380 Y*O 18 55 18.470 +01 33 38.05           ~ 1 0
292 2MASS J18551904+0130547 Y*O 18 55 19.047 +01 30 54.74           ~ 1 0
293 2MASS J18551983+0136274 Y*O 18 55 19.8392798424 +01 36 27.446417712           ~ 1 0
294 [RBG2009] G034.74-0.12 28 Y*O 18 55 21.55 +01 35 21.3           ~ 1 0
295 [RBG2009] G034.74-0.12 29 Y*O 18 55 21.84 +01 35 30.9           ~ 1 0
296 2MASS J18585891+0406484 Y*O 18 58 58.911 +04 06 48.40           ~ 1 0
297 2MASS J18590002+0402038 Y*O 18 59 00.022 +04 02 03.81           ~ 1 0
298 [RBG2009] G037.44+0.14 4 Y*O 18 59 00.07 +04 06 32.4           ~ 1 0
299 2MASS J18590016+0406095 Y*O 18 59 00.1627763928 +04 06 09.433303920           ~ 1 0
300 [RBG2009] G037.44+0.14 3 Y*O 18 59 00.30 +04 06 06.4           ~ 1 0
301 2MASS J18590110+0401482 Y*O 18 59 01.110 +04 01 48.27           ~ 1 0
302 2MASS J18590273+0406317 Y*O 18 59 02.731 +04 06 31.73           ~ 1 0
303 2MASS J18590359+0406438 Y*O 18 59 03.598 +04 06 43.84           ~ 1 0
304 [RBG2009] G037.44+0.14 25 Y*O 18 59 03.67 +04 05 57.8           ~ 1 0
305 2MASS J18590386+0404221 Y*O 18 59 03.868 +04 04 22.16           ~ 1 0
306 [RBG2009] G037.44+0.14 33 Y*O 18 59 04.87 +04 07 19.6           ~ 1 0
307 2MASS J18590685+0403056 Y*O 18 59 06.850 +04 03 05.61           ~ 1 0
308 [RBG2009] G037.44+0.14 15 Y*O 18 59 07.00 +04 03 11.8           ~ 1 0
309 IRAS 18566+0401 Y*O 18 59 07.464 +04 05 19.28           ~ 1 0
310 2MASS J18590752+0406146 Y*O 18 59 07.523 +04 06 14.67           ~ 1 0
311 [RBG2009] G037.44+0.14 17 Y*O 18 59 07.94 +04 03 27.1           ~ 1 0
312 [RBG2009] G037.44+0.14 14 Y*O 18 59 08.28 +04 03 08.5           ~ 1 0
313 2MASS J18590843+0405171 Y*O 18 59 08.436 +04 05 17.13           ~ 1 0
314 2MASS J18590885+0400184 Y*O 18 59 08.858 +04 00 18.47           ~ 1 0
315 2MASS J18590950+0404343 Y*O 18 59 09.506 +04 04 34.32           ~ 1 0
316 2MASS J18591039+0401398 Y*O 18 59 10.4021303568 +04 01 39.758082708           ~ 1 0
317 2MASS J18591073+0402351 Y*O 18 59 10.740 +04 02 35.19           ~ 1 0
318 [RBP2006] G37.44+0.14 MoC 18 59 10.750 +04 04 24.37           ~ 3 0
319 2MASS J18591101+0404029 Y*O 18 59 11.015 +04 04 02.90           ~ 1 0
320 IRAS 18567+0358 Y*O 18 59 12.03720 +04 03 00.7848           ~ 2 0
321 2MASS J18591231+0404258 Y*O 18 59 12.316 +04 04 25.84           ~ 1 0
322 2MASS J18591288+0402567 Y*O 18 59 12.885 +04 02 56.71           ~ 1 0
323 2MASS J18591378+0404317 Y*O 18 59 13.781 +04 04 31.71           ~ 1 0
324 [RBG2009] G037.44+0.14 26 Y*O 18 59 13.87 +04 05 59.3           ~ 1 0
325 2MASS J18591401+0402542 Y*O 18 59 14.015 +04 02 54.28           ~ 1 0
326 2MASS J18591438+0403263 Y*O 18 59 14.389 +04 03 26.34           ~ 1 0
327 [RBG2009] G037.44+0.14 36 Y*O 18 59 16.13 +04 08 03.3           ~ 1 0
328 2MASS J18591704+0404150 Y*O 18 59 17.049 +04 04 15.03           ~ 1 0
329 2MASS J18591707+0407317 Y*O 18 59 17.080 +04 07 31.79           ~ 1 0
330 2MASS J18591783+0401589 Y*O 18 59 17.837 +04 01 58.97           ~ 1 0
331 SSTGLMC G037.4508+00.1094 Y*O 18 59 18.21 +04 04 15.6           ~ 2 0
332 2MASS J18592107+0406226 Y*O 18 59 21.074 +04 06 22.69           ~ 1 0
333 2MASS J18592208+0407333 Y*O 18 59 22.088 +04 07 33.36           ~ 2 0
334 2MASS J18592239+0403386 Y*O 18 59 22.398 +04 03 38.67           ~ 1 0
335 2MASS J18592269+0406531 Y*O 18 59 22.691 +04 06 53.10           ~ 2 0
336 2MASS J18592580+0404019 Y*O 18 59 25.8087768768 +04 04 01.740458388           ~ 1 0
337 W 49 SFR 19 10 20 +09 07.7           ~ 576 1

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