CDS

2010MNRAS.407.1170K

Query : 2010MNRAS.407.1170K

2010MNRAS.407.1170K - Mon. Not. R. Astron. Soc., 407, 1170-1181 (2010/September-2)

A study of the massive star-forming region M8 using images from the Spitzer Infrared Array Camera.

KUMAR D.L. and ANANDARAO B.G.

Abstract (from CDS):

We present photometry and images (3.6, 4.5, 5.8 and 8.0 µm) from the Spitzer Infrared Array Camera (IRAC) of the star-forming region Messier 8 (M8). The IRAC photometry reveals ongoing star formation in the M8 complex, with 64 class 0/I and 168 class II sources identified in several locations in the vicinity of submm gas cores/clumps. Nearly 60 per cent of these young stellar objects (YSOs) occur in about seven small clusters. The spatial surface density of the clustered YSOs is determined to be about 10-20 YSOs/pc2. Fresh star formation by the process of `collect and collapse' might have been triggered by the expanding HII regions and winds from massive stars. IRAC ratio images are generated and studied in order to identify possible diagnostic emission regions in M8. The image of 4.5/8.0 µm reveals a Brα counterpart of the optical Hourglass HII region, while the ratio 8.0/4.5 µm indicates PAH emission in a cavity-like structure to the east of the Hourglass. The ratio maps of 3.6/4.5, 5.8/4.5 and 8.0/4.5 µm seem to identify PAH emission regions in the sharp ridges and filamentary structures seen east to west and north-east to south-west in the M8 complex.

Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS

Journal keyword(s): stars: formation - stars: pre-main-sequence - stars: winds, outflows - HII regions - ISM: individual objects: M8 - infrared: ISM

VizieR on-line data: <Available at CDS (J/MNRAS/407/1170): table1.dat table2.dat>

Nomenclature: Table 1: [KA2010] 0/I NN (Nos 1-65). Table 2: [KA2010] II NNN (Nos 1-168).

Simbad objects: 249

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Number of rows : 249
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 Car-Sgr Arm PoG 15 00 -40.0           ~ 505 1
2 2MASS J18022376-2408492 Y*? 18 02 23.7621933456 -24 08 49.332067692           ~ 2 0
3 2MASS J18022491-2436081 Y*? 18 02 24.920 -24 36 08.19           ~ 1 0
4 MIRES G005.6863-01.0087 Y*? 18 02 25.54344 -24 32 41.4528           ~ 2 0
5 2MASS J18022594-2427315 AB? 18 02 25.942 -24 27 31.57           ~ 2 0
6 2MASS J18022750-2422529 Y*? 18 02 27.502 -24 22 52.93           ~ 1 0
7 2MASS J18022761-2411380 Y*? 18 02 27.6227983584 -24 11 38.037571584           ~ 1 0
8 IRAS 17594-2408 Y*? 18 02 29.251 -24 08 15.59           ~ 2 0
9 2MASS J18022945-2424533 Y*? 18 02 29.4659501856 -24 24 53.013843432           ~ 1 0
10 2MASS J18023631-2421077 Y*? 18 02 36.314 -24 21 07.70           ~ 1 0
11 V* V1743 Sgr Or* 18 02 37.32984 -24 16 24.0060           ~ 2 0
12 2MASS J18024143-2410353 Y*? 18 02 41.439 -24 10 35.33           ~ 1 0
13 2MASS J18024163-2433548 LP? 18 02 41.6334162744 -24 33 54.949630248           ~ 2 0
14 SSTGLMC G005.9126-00.9525 Y*? 18 02 42.07 -24 19 13.2           ~ 2 0
15 2MASS J18024266-2417185 Y*? 18 02 42.6286776024 -24 17 19.050685224           ~ 1 0
16 SSTGLMC G005.8532-00.9900 Y*? 18 02 42.95808 -24 23 25.5732           ~ 3 0
17 2MASS J18024389-2415229 Y*? 18 02 43.8907348992 -24 15 23.020367904           ~ 1 0
18 2MASS J18024563-2413497 Y*? 18 02 45.631 -24 13 49.75           ~ 1 0
19 ATO J270.7034-24.3524 Y*? 18 02 48.8212390704 -24 21 08.664790248           ~ 3 0
20 2MASS J18024909-2428157 Y*? 18 02 49.099 -24 28 15.78           ~ 1 0
21 2MASS J18024914-2408521 Y*? 18 02 49.141 -24 08 52.16           ~ 1 0
22 2MASS J18024931-2411186 Y*? 18 02 49.3002518208 -24 11 18.779352756           ~ 1 0
23 MIRES G005.8802-01.0041 Y*? 18 02 49.69152 -24 22 26.0688           ~ 2 0
24 2MASS J18025080-2417564 Y*O 18 02 50.7649124634 -24 17 56.063539447           ~ 3 0
25 VPHAS J180250.9-242219.8 Em* 18 02 50.9309494488 -24 22 19.836205248           ~ 2 0
26 V* V1751 Sgr Or* 18 02 51.0798616248 -24 19 23.179542276     17.2     ~ 2 1
27 * 7 Sgr * 18 02 51.0986253456 -24 16 56.882232732   5.86 5.34     F2II-III 72 0
28 V* V1750 Sgr Or* 18 02 51.1333572120 -24 18 07.841956896           ~ 1 0
29 [KA2010] II 23 Y*? 18 02 51.39 -24 17 13.3           ~ 1 0
30 Ve 2-48 Or* 18 02 52.4564371056 -24 18 44.419936104           ~ 14 0
31 [KA2010] 0/I 6 Y*? 18 02 52.85 -24 20 46.6           ~ 1 0
32 HD 314900 Y*? 18 02 53.2729793448 -24 20 17.007804348   10.54 10.41     A 14 0
33 EM* LkHA 103 Em* 18 02 53.8124751096 -24 20 19.501236960           ~ 2 0
34 NSV 10045 V* 18 02 53.9540612424 -24 20 11.287603716     16.9     ~ 1 1
35 EM* LkHA 104 Or* 18 02 54.2860628856 -24 20 56.637213288     15.80     ~ 11 0
36 2MASS J18025472-2419567 Y*? 18 02 54.728 -24 19 56.72           ~ 1 0
37 2MASS J18025679-2423345 Y*? 18 02 56.792 -24 23 34.57           ~ 1 0
38 2MASS J18025685-2435405 Y*? 18 02 56.853 -24 35 40.56           ~ 1 0
39 2MASS J18030147-2427470 Y*? 18 03 01.4736774024 -24 27 47.116522368           ~ 1 0
40 2MASS J18030511-2431540 Y*? 18 03 05.1259028760 -24 31 54.151943268           ~ 1 0
41 2MASS J18030652-2432131 Y*? 18 03 06.524 -24 32 13.14           ~ 1 0
42 2MASS J18030686-2420573 Y*? 18 03 06.869 -24 20 57.33           ~ 1 0
43 2MASS J18030696-2421201 Y*O 18 03 06.9749694480 -24 21 20.137326012           ~ 3 0
44 2MASS J18030993-2433502 Y*? 18 03 09.936 -24 33 50.21           ~ 1 0
45 2MASS J18031028-2426595 Y*? 18 03 10.282 -24 26 59.50           ~ 1 0
46 IRAS 18001-2412 Y*? 18 03 11.6214135504 -24 11 57.355447380           ~ 1 0
47 NGC 6523 Cl* 18 03.2 -24 23           ~ 185 1
48 2MASS J18031224-2433301 Y*? 18 03 12.241 -24 33 30.18           ~ 1 0
49 2MASS J18031768-2420532 Y*O 18 03 17.683 -24 20 53.25           ~ 2 0
50 2MASS J18031828-2425587 Y*? 18 03 18.281 -24 25 58.71           ~ 1 0
51 2MASS J18031996-2420202 Y*? 18 03 19.965 -24 20 20.28           ~ 1 0
52 2MASS J18032049-2430298 LP* 18 03 20.5024597522 -24 30 29.798931666           ~ 2 0
53 2MASS J18032305-2423416 Y*? 18 03 23.050 -24 23 41.66           ~ 1 0
54 2MASS J18032306-2421329 Y*? 18 03 23.062 -24 21 32.96           ~ 1 0
55 2MASS J18032404-2421231 Y*? 18 03 24.046 -24 21 23.16           ~ 1 0
56 2MASS J18032503-2419019 Y*? 18 03 25.037 -24 19 01.97           ~ 1 0
57 [KA2010] II 44 Y*? 18 03 25.12 -24 21 28.4           ~ 1 0
58 CXOU J180325.5-242108 Y*O 18 03 25.555 -24 21 08.15           ~ 2 0
59 2MASS J18032671-2422110 Y*? 18 03 26.719 -24 22 11.07           ~ 1 0
60 CXOU J180327.3-242104 Y*O 18 03 27.380 -24 21 04.20           ~ 3 0
61 2MASS J18032916-2421495 Y*? 18 03 29.1688872408 -24 21 49.573144332           ~ 1 0
62 CXOU J180330.8-242003 Y*O 18 03 30.835 -24 20 02.85           ~ 3 0
63 2MASS J18033413-2424595 Y*? 18 03 34.134 -24 24 59.54           ~ 1 0
64 2MASS J18033472-2418537 Y*? 18 03 34.729 -24 18 53.70           ~ 1 0
65 [KA2010] 0/I 16 Y*? 18 03 35.58 -24 22 04.6           ~ 1 0
66 2MASS J18033584-2409117 Y*? 18 03 35.8377998016 -24 09 11.763588420           ~ 1 0
67 2MASS J18033620-2418136 Y*? 18 03 36.210 -24 18 13.65           ~ 1 0
68 2MASS J18033627-2417507 Y*? 18 03 36.276 -24 17 50.76           ~ 1 0
69 2MASS J18033627-2409479 Y*? 18 03 36.277 -24 09 47.93           ~ 1 0
70 2MASS J18033666-2410326 Y*? 18 03 36.6574906944 -24 10 32.689728840           ~ 1 0
71 2MASS J18033683-2424149 Y*O 18 03 36.8252868456 -24 24 14.999321592           ~ 2 0
72 M 8 OpC 18 03 37 -24 23.2           ~ 607 1
73 2MASS J18033701-2422315 Y*O 18 03 37.0043350752 -24 22 31.672516044           ~ 2 0
74 Cl* NGC 6530 SCB 1037 Y*O 18 03 37.2840704784 -24 22 47.135631576     21.482     G9-K3V 6 0
75 IRAS 18005-2414 LP* 18 03 37.3841046648 -24 13 56.994675852           ~ 2 0
76 CXOU J180337.7-242530 Y*O 18 03 37.7314607064 -24 25 30.169491096           ~ 2 0
77 [KA2010] 0/I 22 Y*? 18 03 38.31 -24 33 59.8           ~ 1 0
78 2MASS J18033846-2422315 Y*O 18 03 38.4522956256 -24 22 31.588491432           K0-K3IV-V 4 0
79 2MASS J18033861-2422243 Y*O 18 03 38.6057774352 -24 22 24.264602580     18.476     ~ 5 0
80 2MASS J18033879-2408585 Y*? 18 03 38.7914560872 -24 08 58.670131956           ~ 1 0
81 2MASS J18033903-2428107 Y*? 18 03 39.0361911048 -24 28 10.821884808           ~ 1 0
82 2MASS J18033934-2425239 Em* 18 03 39.3418534272 -24 25 23.993360796   19.045 17.303   14.893 G3-G7III 5 0
83 Cl* NGC 6530 SCB 1032 Y*O 18 03 40.2147541128 -24 22 03.615676392   19.012 18.066   15.341 G5-G9V 9 0
84 IRAS 18005-2429 Y*? 18 03 40.2260440488 -24 29 08.173879116           ~ 1 0
85 NAME Her 36SE SB* 18 03 40.3201232304 -24 22 42.857540472 10.26 11.022 10.372 10.267   O8V+ 191 0
86 2MASS J18034034-2425048 Y*O 18 03 40.3357343088 -24 25 04.893798252   19.591 17.728   15.209 ~ 5 0
87 CD-24 13806B ** 18 03 40.3545931972 -24 22 39.951170892         15 ~ 13 0
88 Cl* NGC 6530 SCB 146 * 18 03 40.7077895064 -24 23 16.299314484   17.712 16.239   14.116 ~ 8 0
89 2MASS J18034106-2425455 Y*? 18 03 41.062 -24 25 45.56           ~ 1 0
90 NAME Hourglass Nebula ISM 18 03 41.1 -24 22 37           ~ 75 2
91 Cl* NGC 6530 SCB 1016 * 18 03 41.454 -24 22 43.64     22.288     ~ 6 0
92 2MASS J18034225-2423222 Y*O 18 03 42.2436203160 -24 23 22.309913688           ~ 2 0
93 2MASS J18034287-2416262 Y*? 18 03 42.8701226592 -24 16 26.271414696           ~ 1 0
94 2MASS J18034305-2421297 Y*? 18 03 43.059 -24 21 29.77           ~ 1 0
95 2MASS J18034327-2428068 Y*? 18 03 43.271 -24 28 06.90           ~ 1 0
96 CXOU J180344.9-241608 Em* 18 03 44.9403786840 -24 16 08.597881920   18.392 17.052   15.229 ~ 7 0
97 CD-24 13810 Y*O 18 03 45.0958464864 -24 22 05.325003732 9.67 10.180 10.054 10.169 9.54 B1.5V(n) 29 0
98 Cl* NGC 6530 SCB 184 Em* 18 03 45.1858557120 -24 23 25.166229612   17.736 16.434 15.881 14.324 F1-F5III 10 0
99 2MASS J18034703-2425372 Y*O 18 03 47.03328 -24 25 37.2144           F6-G0III 5 0
100 2MASS J18034736-2418443 Y*O 18 03 47.361 -24 18 44.33           ~ 2 0
101 2MASS J18034745-2425344 Y*O 18 03 47.45424 -24 25 34.4604           ~ 3 0
102 2MASS J18034790-2418020 Y*? 18 03 47.8939471656 -24 18 02.106736416           ~ 1 0
103 MIRES G005.9303-01.2316 Y*? 18 03 48.40344 -24 26 31.9668           ~ 2 0
104 2MASS J18034843-2425582 Y*? 18 03 48.437 -24 25 58.28           ~ 1 0
105 2MASS J18034935-2426145 Y*? 18 03 49.357 -24 26 14.51           ~ 1 0
106 2MASS J18034960-2422092 Y*O 18 03 49.5931239240 -24 22 09.319543608           ~ 4 0
107 V* V1762 Sgr Or* 18 03 50.2263893640 -24 22 23.381277960 19.491 17.168 15.863   14.173 G0-G4V 12 0
108 Cl* NGC 6530 SCB 238 Em* 18 03 50.7059573664 -24 20 13.071326784 19.090 17.893 16.551   14.615 ~ 12 0
109 EM* LkHA 108 Y*? 18 03 50.7590261472 -24 21 10.836157104 12.541 12.137 11.714   11.003 ~ 21 0
110 2MASS J18035164-2428265 Y*O 18 03 51.6346351272 -24 28 26.576441616   15.891 14.844   13.533 ~ 9 0
111 * 9 Sgr Em* 18 03 52.4450051016 -24 21 38.632254012 5.08 5.97 5.97 5.72 5.70 O4V((f))z 539 0
112 2MASS J18035302-2414515 Y*? 18 03 53.0269132344 -24 14 51.607717224           ~ 1 0
113 2MASS J18035423-2425332 Y*? 18 03 54.2346875424 -24 25 33.333425004           ~ 1 0
114 HD 164816 Be* 18 03 56.8425865728 -24 18 45.118050552 6.17 7.006 6.986 8.08 6.989 O9.5V+B0V 150 0
115 V* SV Sgr Or* 18 03 57.8183817072 -24 25 34.949147844 14.571 15.198 13.878   12.093 K0 20 0
116 Cl* NGC 6530 WFI 22455 Y*O 18 03 57.8290375608 -24 20 51.230946948 20.023 18.949 17.442   15.347 ~ 10 0
117 V* V1764 Sgr Or* 18 03 58.2584964168 -24 16 49.179488268 18.395 18.356 16.942 16.15 14.995 ~ 9 0
118 Cl* NGC 6530 SCB 295 Y*O 18 03 58.5290878920 -24 24 58.623793524 18.496 16.867 15.444   13.579 M0-M1.5V 15 0
119 V* V1765 Sgr Or* 18 03 59.2659542160 -24 23 08.248613784 17.549 17.661 16.313 14.99 14.472 ~ 13 1
120 2MASS J18040112-2422353 Y*? 18 04 01.127 -24 22 35.32           ~ 1 0
121 Cl* NGC 6530 SCB 341 Y*O 18 04 03.0712583448 -24 25 19.358992740   15.381 14.465   13.317 G6-K0III 9 0
122 2MASS J18040464-2408496 Y*? 18 04 04.6343530248 -24 08 49.775331084           ~ 1 0
123 2MASS J18040510-2416421 Y*O 18 04 05.1033197784 -24 16 42.129789852 19.570 17.659 16.276   14.539 M0.5-M1V 15 0
124 2MASS J18040785-2426061 Y*? 18 04 07.857 -24 26 06.15           ~ 1 0
125 2MASS J18040810-2420554 Y*O 18 04 08.0965629600 -24 20 55.392146880 19.709 19.627 18.046   15.750 ~ 10 0
126 2MASS J18040845-2420496 Y*O 18 04 08.4576654936 -24 20 49.548820416 20.649 18.735 17.070   14.897 ~ 11 0
127 [KA2010] 0/I 37 Y*? 18 04 08.81 -24 27 27.5           ~ 1 0
128 V* V1769 Sgr Or* 18 04 09.9079227312 -24 25 32.556862092 19.717 17.741 16.038   13.783 K4-K7V 10 0
129 2MASS J18041015-2425496 Y*O 18 04 10.1609048520 -24 25 49.529889984 20.884 19.109 17.315   14.894 ~ 9 0
130 Cl* NGC 6530 SCB 422 Y*O 18 04 10.5311496000 -24 26 55.830537456 17.692 17.115 15.689 15.194 13.676 ~ 15 0
131 [KA2010] 0/I 39 Y*? 18 04 11.03 -24 27 20.5           ~ 1 0
132 2MASS J18041103-2421317 Y*? 18 04 11.037 -24 21 31.73           ~ 1 0
133 CXOU J180411.0-242654 Y*O 18 04 11.088 -24 26 54.38           ~ 4 0
134 [KA2010] II 87 Y*? 18 04 11.57 -24 28 42.1           ~ 1 0
135 Cl* NGC 6530 WFI 13705 Y*O 18 04 11.9540799168 -24 26 27.863040372 19.973 18.106 16.556   14.358 ~ 15 0
136 V* V1773 Sgr Or* 18 04 12.4489786944 -24 11 51.571948956   18.269 17.301   15.465 ~ 5 0
137 2MASS J18041249-2435469 Y*? 18 04 12.4986138624 -24 35 46.904469648           ~ 1 0
138 Cl* NGC 6530 WFI 13933 Y*O 18 04 13.0907870280 -24 26 13.439275116 19.871 19.207 17.467   15.119 K7.5-M0.5V 13 0
139 V* V1775 Sgr Or* 18 04 15.7361475192 -24 19 01.658022204 18.500 16.829 15.505   13.829 ~ 14 0
140 CXOU J180415.7-242516 Em* 18 04 15.7700467248 -24 25 15.672976248           ~ 3 0
141 Cl* NGC 6530 SCB 486 Y*? 18 04 15.9032331792 -24 18 46.276127712 19.583 18.811 17.561   15.423 ~ 14 0
142 2MASS J18041604-2427573 Y*O 18 04 16.0493961216 -24 27 57.326307300   17.865 16.307   14.231 ~ 10 0
143 V* V1776 Sgr Or* 18 04 16.1225339712 -24 19 52.486945644 19.511 17.227 15.790   13.893 ~ 11 0
144 V* V1778 Sgr Or* 18 04 16.3907947992 -24 24 38.977473420 19.725 18.188 16.771   14.774 G8-K2V 17 0
145 Cl* NGC 6530 SCB 504 Y*O 18 04 16.9120780848 -24 24 14.613609420 16.772 15.604 14.402   12.839 ~ 15 0
146 2MASS J18041703-2428107 Y*? 18 04 17.0326909536 -24 28 10.620206472           ~ 1 0
147 V* V1780 Sgr Or* 18 04 17.39016 -24 19 09.9264 18.574 18.817 17.306   15.122 ~ 14 0
148 V* V1779 Sgr Or* 18 04 17.8795739040 -24 17 46.796496000 19.764 17.744 16.260   14.386 ~ 14 0
149 2MASS J18041907-2427590 Y*? 18 04 19.0662618912 -24 27 58.872968388   20.086 18.463   15.676 ~ 4 0
150 Cl* NGC 6530 SCB 531 Y*O 18 04 19.320432 -24 22 54.47928   17.798 16.397 15.379 14.959 K5-K7V 14 0
151 V* V1781 Sgr Or* 18 04 19.5530021568 -24 24 04.859029512 20.870 20.166 18.438   15.808 ~ 9 0
152 VPHAS J180419.9-242823.7 Em* 18 04 19.8621171528 -24 28 23.647528128           ~ 2 0
153 Cl* NGC 6530 SCB 540 Y*? 18 04 20.0361664296 -24 22 48.087149916 18.864 17.389 16.143   14.354 ~ 15 0
154 NGC 6530 127 * 18 04 20.05 -24 29 14.5   15.212 14.152   12.855 M3 4 0
155 Cl* NGC 6530 WFI 23284 Y*O 18 04 20.2295087246 -24 20 25.274383333   19.226 18.141   16.039 ~ 7 0
156 [KA2010] II 107 Y*? 18 04 20.34 -24 24 34.6           ~ 1 0
157 Cl* NGC 6530 WFI 18612 ** 18 04 20.50344 -24 23 04.0308 20.773 19.621 17.855   15.468 A8-F2III 12 0
158 Cl* NGC 6530 WFI 18685 Y*O 18 04 20.5907073816 -24 23 00.981566700   20.433 18.321   15.561 ~ 7 0
159 2MASS J18042074-2428218 Y*? 18 04 20.7500852304 -24 28 21.769162788           ~ 1 0
160 2MASS J18042082-2423227 Y*? 18 04 20.8090241335 -24 23 22.335599569   20.148 18.264   15.933 ~ 5 0
161 2MASS J18042094-2421079 Y*? 18 04 20.9506680696 -24 21 07.903958220   19.536 18.186   16.105 ~ 5 0
162 2MASS J18042099-2413416 Y*? 18 04 20.9886456264 -24 13 41.598247620           ~ 1 0
163 2MASS J18042108-2420473 Y*O 18 04 21.0823826832 -24 20 47.346389448 20.313 18.246 16.780   14.786 ~ 13 0
164 Cl* NGC 6530 SCB 556 Y*? 18 04 21.0898811069 -24 23 25.244731740 19.792 18.419 16.923   14.734 G8III-K3V 17 0
165 2MASS J18042118-2424226 Y*? 18 04 21.183 -24 24 22.68           ~ 1 0
166 2MASS J18042123-2428027 Y*? 18 04 21.2394202008 -24 28 02.593011936           ~ 1 0
167 2MASS J18042145-2423189 Y*? 18 04 21.4308114840 -24 23 18.874719564           ~ 3 0
168 Cl* NGC 6530 WFI 18161 Y*O 18 04 21.6428261400 -24 23 19.665972132 20.925 20.974 19.001   15.953 ~ 5 0
169 2MASS J18042166-2421145 Y*O 18 04 21.6775836120 -24 21 14.487361272   18.343 17.817   15.661 ~ 5 0
170 2MASS J18042163-2411257 Y*? 18 04 21.6880986048 -24 11 25.928178360           ~ 1 0
171 2MASS J18042178-2422155 Y*O 18 04 21.7889370408 -24 22 15.480411204 20.526 19.375 17.787   15.585 ~ 7 0
172 2MASS J18042182-2416261 Y*O 18 04 21.8310928272 -24 16 26.048451828 18.631 17.557 16.094   14.226 ~ 12 0
173 2MASS J18042184-2411376 Y*? 18 04 21.8515846224 -24 11 37.453875072   15.340 14.431   13.259 ~ 6 0
174 CD-24 13830 Ae* 18 04 22.7421765936 -24 22 09.724518840 9.41 10.183 10.016 10.11 9.624 B2Ve 46 0
175 2MASS J18042301-2424151 Y*? 18 04 23.016 -24 24 15.18           ~ 1 0
176 2MASS J18042350-2422476 Y*? 18 04 23.504 -24 22 47.62           ~ 1 0
177 CPD-24 6164 * 18 04 23.9941418688 -24 21 26.706008844 9.13 9.890 9.740 9.98   B1Ve 36 0
178 VPHAS J180424.2-241625.1 Em* 18 04 24.1990483800 -24 16 25.026827664           ~ 2 0
179 NGC 6530 61 Y*? 18 04 24.2929429728 -24 20 59.495770896 9.8 10.424 10.282   10.028 B1V 25 0
180 HD 164906 Be* 18 04 25.8330927672 -24 23 08.363828580 6.78 7.61 7.381 7.11 6.91 B0Ve 127 0
181 EM* LkHA 113 Or* 18 04 26.1365808984 -24 22 45.085010016 16.68 17.178 16.573   14.714 ~ 10 0
182 Cl* NGC 6530 SCB 629 Y*O 18 04 26.4746799432 -24 29 00.145388220 20.324 18.314 16.729   14.771 ~ 12 0
183 2MASS J18042670-2422418 Y*O 18 04 26.7155295456 -24 22 41.843254548   20.104 18.328   15.891 ~ 6 0
184 Cl* NGC 6530 SCB 633 Y*O 18 04 26.8394565288 -24 23 23.474454540 17.986 16.654 15.355   13.638 ~ 13 0
185 V* V1787 Sgr Or* 18 04 27.0690604632 -24 21 06.483227976 20.480 17.793 16.333   14.509 ~ 13 0
186 V* V1786 Sgr Or* 18 04 27.2608416792 -24 20 56.789435148 19.719 19.610 18.097   15.770 ~ 12 0
187 Cl* NGC 6530 WFI 34380 Y*? 18 04 27.3557079624 -24 14 27.075106644   18.999 17.830   15.821 ~ 6 0
188 2MASS J18042746-2407310 Y*? 18 04 27.467 -24 07 31.00           ~ 1 0
189 HD 315031 SB* 18 04 28.0254107904 -24 21 42.788444328 7.68 9.170 9.090 9.16   B0.5IV/V+B1V 57 0
190 2MASS J18042805-2422415 Y*O 18 04 28.0587249912 -24 22 41.509581312 21.526 18.909 17.360   15.364 ~ 10 0
191 V* V1790 Sgr Or* 18 04 28.2302186136 -24 25 47.903443680 20.022 19.835 18.440   16.187 ~ 10 0
192 2MASS J18042864-2420200 Y*? 18 04 28.6487892480 -24 20 19.916776068           ~ 1 0
193 2MASS J18042886-2414025 Y*O 18 04 28.8668442576 -24 14 02.534069328 13.501 12.478 12.009   11.308 ~ 18 0
194 IRAS 18014-2428 IR 18 04 29.6 -24 28 47           ~ 14 0
195 2MASS J18042967-2425190 Y*? 18 04 29.679 -24 25 19.09           ~ 1 0
196 Cl* NGC 6530 SCB 897 Y*O 18 04 29.9019764496 -24 14 29.524909020 20.487 19.197 17.812   15.508 M0-M1V 12 0
197 2MASS J18043056-2426069 LP* 18 04 30.5639211598 -24 26 06.906603687           ~ 2 0
198 2MASS J18043071-2428456 Y*O 18 04 30.7130564016 -24 28 45.503404428           ~ 4 0
199 NGC 6530 OpC 18 04 31 -24 21.5           ~ 413 0
200 2MASS J18043107-2429096 Y*? 18 04 31.080 -24 29 09.62           ~ 1 0
201 Cl* NGC 6530 SCB 701 Y*O 18 04 32.3357537544 -24 19 27.994595484 19.266 18.154 16.789   14.995 ~ 12 0
202 2MASS J18043236-2427553 Y*O 18 04 32.3677019328 -24 27 55.231125084           ~ 3 0
203 EM* LkHA 114 Or* 18 04 33.2175695760 -24 27 17.761190508 16.9 17.618 16.303   14.399 ~ 10 0
204 Cl* NGC 6530 SCB 716 Y*O 18 04 33.5660513424 -24 21 54.857828160 18.132 15.827 14.437   12.668 G6-K0III 9 0
205 IRAS 18015-2409 LP? 18 04 34.5819840888 -24 09 01.951547724           ~ 3 0
206 2MASS J18043492-2422519 Y*O 18 04 34.9241488056 -24 22 51.930806880 20.387 19.543 17.963   15.728 ~ 12 0
207 2MASS J18043576-2428356 Y*? 18 04 35.7616766880 -24 28 35.594650236           ~ 1 0
208 EM* LkHA 107 Or* 18 04 36.4784289264 -24 19 13.604178072   20.772 19.623   17.835 ~ 7 1
209 [KA2010] II 145 Y*? 18 04 38.90 -24 19 28.2           ~ 1 0
210 2MASS J18043927-2432243 Y*? 18 04 39.2684434632 -24 32 24.296113428           ~ 1 0
211 Cl* NGC 6530 WFI 13000 Em* 18 04 39.4348256712 -24 27 09.055076940 20.604 19.385 17.641   15.223 F7-F8V 13 0
212 2MASS J18043984-2423049 Y*? 18 04 39.8308181400 -24 23 05.113779036   18.031 16.959   14.990 ~ 7 0
213 2MASS J18044065-2412165 Y*? 18 04 40.659 -24 12 16.56           ~ 1 0
214 V* V1800 Sgr Or* 18 04 40.8768634440 -24 17 10.848259716 19.139 18.198 16.740   14.732 ~ 14 0
215 2MASS J18044128-2415446 Y*? 18 04 41.2678165872 -24 15 44.728819128           ~ 1 0
216 2MASS J18044163-2426315 Y*? 18 04 41.633 -24 26 31.54           ~ 1 0
217 Cl* NGC 6530 SCB 810 Y*? 18 04 43.5151983552 -24 27 38.619388476   18.077 16.265   13.938 K2-K3V 14 0
218 VPHAS J180443.6-242759.1 Em* 18 04 43.6183065984 -24 27 59.203818288   20.293 18.509   15.949 ~ 6 0
219 NGC 6530 107 Y*O 18 04 44.0335882680 -24 19 39.611601372 19.580 17.711 16.297   14.391 ~ 16 0
220 2MASS J18044417-2415250 Y*O 18 04 44.1543730752 -24 15 25.149407040 20.335 18.892 17.151   14.802 M1-M2V 10 0
221 2MASS J18044445-2410172 Y*? 18 04 44.4447534336 -24 10 17.407975620   19.561 17.858   15.404 ~ 4 0
222 2MASS J18044640-2426077 Y*O 18 04 46.3886187144 -24 26 07.874030868 21.413 19.047 17.368   15.199 K7-M0V 8 0
223 2MASS J18044709-2427550 Y*? 18 04 47.090 -24 27 55.09           ~ 3 0
224 2MASS J18044804-2427243 Y*? 18 04 48.048 -24 27 24.36           ~ 2 0
225 [KA2010] 0/I 59 Y*? 18 04 48.42 -24 27 53.8           ~ 2 0
226 V* V1803 Sgr Or* 18 04 48.508608 -24 26 40.40016   18.437 17.102 16.36 14.946 ~ 8 0
227 2MASS J18045017-2427590 Y*? 18 04 50.174 -24 27 59.01           ~ 2 0
228 IRAS 18017-2414 Y*? 18 04 50.332 -24 14 25.93           ~ 2 0
229 EM* LkHA 115 Ae* 18 04 50.5999226472 -24 25 42.095461620   12.380 11.949   11.198 B7e 31 0
230 2MASS J18045113-2426336 Y*O 18 04 51.138 -24 26 33.67           ~ 4 0
231 Cl* NGC 6530 WFI 16451 Y*O 18 04 51.52920 -24 24 17.3232   21.437 19.042   15.961 ~ 11 0
232 2MASS J18045155-2426110 Y*? 18 04 51.553 -24 26 11.05           ~ 2 0
233 2MASS J18045161-2425157 Y*O 18 04 51.5987056632 -24 25 15.818766276 19.722 18.654 17.002   14.726 K3.5-K4.5V 14 0
234 2MASS J18045263-2427306 Y*? 18 04 52.6200837480 -24 27 30.770608680           ~ 2 0
235 RAFGL 2059 Y*O 18 04 53.1586569336 -24 26 41.642012796 19.905 21.910 18.914   14.078 ~ 144 0
236 2MASS J18045347-2426085 Y*O 18 04 53.4607151184 -24 26 08.711003148   21.913 19.331   15.669 ~ 4 0
237 2MASS J18045406-2426234 Y*? 18 04 54.0530397192 -24 26 23.543075256           ~ 1 0
238 Cl* NGC 6530 WFI 12817 Y*O 18 04 54.9773351664 -24 27 18.083975652   23.458 21.808   17.544 ~ 5 0
239 2MASS J18045617-2409007 Y*? 18 04 56.1647980272 -24 09 00.954132984           ~ 1 0
240 2MASS J18045677-2427160 Y*? 18 04 56.773 -24 27 16.08           ~ 2 0
241 NGC 6530 319 Y*? 18 04 57.3403781160 -24 20 48.540765984   15.30 12.35     M5 4 0
242 2MASS J18045878-2426240 Y*? 18 04 58.789 -24 26 24.08           ~ 3 0
243 2MASS J18050044-2413267 Y*? 18 05 00.4376431632 -24 13 26.811723504           ~ 4 0
244 HD 165052 SB* 18 05 10.5506592816 -24 23 54.847798080 6.16 6.98 6.87 7.77   O6.5V((f))z 265 1
245 HD 164806 * 18 06 29.5388344368 -58 34 15.381011028 6.2 6.715 6.825     B3III 29 0
246 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1085 2
247 NGC 7000 Cl* 20 58 47 +44 19.8           ~ 397 0
248 [TWM2002] SE3 PoC ~ ~           ~ 3 0
249 [WPH90] KS 5 IR ~ ~           ~ 3 0

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2023.11.29-22:13:55

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