2000A&AS..146...57D

Query : 2000A&AS..146...57D

2000A&AS..146...57D - Astron. Astrophys., Suppl. Ser., 146, 57-72 (2000/October-1)

Morphologies and ages of star cluster pairs and multiplets in the Small Magellanic Cloud.

DE OLIVEIRA M.R., DUTRA C.M., BICA E. and DOTTORI H.

Abstract (from CDS):

An isophotal atlas of 75 star cluster pairs and multiplets in the Small Magellanic Cloud is presented, comprising 176 objects. They are concentrated in the SMC main body. The isophotal contours were made from Digitized Sky Survey* images and showed relevant structural features possibly related to interactions in about 25% of the sample. Previous N-body simulations indicate that such shapes could be due to tidal tails, bridges or common envelopes. The diameter ratio between the members of a pair is preferentially in the range 1-2, with a peak at 1. The projected separation is in the range ≃3-22pc with a pronounced peak at ≃13pc. For 91 objects it was possible to derive ages from Colour-Magnitude Diagrams using the OGLE-II photometric survey. The cluster multiplets in general occur in OB stellar associations and/or HII region complexes. This indicates a common origin and suggests that multiplets coalesce into pairs or single clusters in a short time scale. Pairs in the SMC appear to be mostly coeval and consequently captures are a rare phenomenon. We find evidence that star cluster pairs and multiplets may have had an important role in the dynamical history of clusters presently seen as large single objects.

Abstract Copyright: ∼

Journal keyword(s): Magellanic Clouds - star clusters

Simbad objects: 209

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Number of rows : 209
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 [BS95] 3 As* 00 30 01 -73 20.0           ~ 4 0
2 [H86] 2 As* 00 30 04 -73 20.6           ~ 6 0
3 [BS95] 4 Cl* 00 30 07 -73 21.0           ~ 5 0
4 [BS95] 7 Cl* 00 32 43 -73 38.0           ~ 4 0
5 [BS95] 8 As* 00 32 57 -73 38.6           ~ 4 0
6 [H86] 22 Cl* 00 34 53 -73 02.1           ~ 4 0
7 [BS95] 9 As* 00 35 02 -73 02.2           ~ 6 0
8 HW 9 Cl* 00 36 25.49 -73 00 09.0 17.70 17.70 17.03   16.35 ~ 14 0
9 HW 10 Cl* 00 36 30.99 -72 59 10.8 15.98 15.97 15.24   14.40 ~ 13 0
10 SMC ASS 1 As* 00 37 15 -72 59.3           ~ 5 0
11 Bruck 9 Cl* 00 37 16.21 -72 57 49.0 15.50 15.85 15.74   15.28 ~ 14 0
12 [H86] 38 As* 00 37 24 -73 01.8           ~ 5 0
13 [H86] 41 Cl* 00 37 29 -72 57.8           ~ 4 0
14 [BS95] 10 Cl* 00 37 34 -73 01.5           ~ 8 0
15 HW 12 Cl* 00 38 51.28 -73 22 27.1           ~ 13 0
16 OGLE-CL SMC 165 Cl* 00 39 11.56 -73 14 45.5           ~ 8 0
17 OGLE-CL SMC 5 As* 00 39 21.63 -73 15 28.4           ~ 10 0
18 [H86] 54 Cl* 00 39 35 -73 23.0           ~ 7 0
19 Bruck 15 As* 00 39 42 -72 58.7           ~ 5 0
20 [H86] 57 As* 00 39 47 -72 58.9           ~ 6 0
21 [BS95] 13 As* 00 40 08 -72 45.5           ~ 8 0
22 [BS95] 248 As* 00 40 15 -72 46.0           ~ 6 0
23 NGC 222 OpC 00 40 42.11 -73 23 00.8 12.63 12.84 12.64   12.31 ~ 32 0
24 Bruck 19 Cl* 00 40 44 -73 03.7           ~ 8 0
25 SMC ASS 3 As* 00 40 45 -73 22.7           ~ 6 0
26 OGLE-CL SMC 10 Cl* 00 40 47.58 -73 05 16.7           ~ 9 0
27 Bruck 20 Cl* 00 40 49 -73 04.1           ~ 5 0
28 Bruck 23 Cl* 00 40 55.45 -73 24 06.6           ~ 11 1
29 NGC 220 OpC 00 40 55.96 -73 24 10.1 14.24 14.61 14.39   14.49 ~ 34 0
30 NGC 231 OpC 00 41 07.24 -73 20 58.4 13.01 13.14 12.87   12.62 ~ 33 0
31 Bruck 21 Cl* 00 41 15.30 -72 49 54.9           ~ 8 0
32 Bruck 22 Cl* 00 41 21 -72 49.5           ~ 6 0
33 [BS95] 15 As* 00 41 21 -73 20.5           ~ 5 0
34 Bruck 29 As* 00 42 11 -73 43.9           ~ 7 0
35 DEM S 7 HII 00 42 27.3 -73 43 55           ~ 9 0
36 LIN 39 Em* 00 42 35.9742552408 -73 47 54.340748124   14.51 14.56 14.79 14.69 B 12 0
37 HW 16 Cl* 00 42 37.22 -73 43 52.5 13.76 14.38 14.39   14.42 ~ 17 0
38 ESO 29-6 SCG 00 43 -73.4           ~ 1 0
39 NGC 241 Cl* 00 43 32.74 -73 26 25.4           ~ 26 1
40 NGC 242 OpC 00 43 37.57 -73 26 37.9   12.1       ~ 38 1
41 Bruck 31 Cl* 00 43 37.59 -72 57 30.9           ~ 12 0
42 OGLE-CL SMC 20 Cl* 00 43 37.89 -72 58 48.3           ~ 13 0
43 OGLE-CL SMC 21 Cl* 00 43 42.26 -72 58 40.7 16.52 16.18 15.29   14.34 ~ 16 0
44 [H86] 72 As* 00 44 55 -73 10.3           ~ 4 0
45 OGLE-CL SMC 177 Cl* 00 44 55.05 -73 10 27.4           ~ 12 0
46 LHA 115-N 10 Y*O 00 44 56.578 -73 10 10.52   14.66 15.1 15.96   B0 47 1
47 NGC 248 Cl* 00 45 24.07 -73 22 44.4           ~ 49 0
48 Bruck 39 Cl* 00 45 28.06 -73 28 50.7 14.97 14.60 14.13   13.33 ~ 19 0
49 [BS95] 30 Cl* 00 45 30 -73 29.1           ~ 8 0
50 Bruck 36 Cl* 00 45 44 -72 50.6           ~ 9 0
51 2dFS 585 Cl* 00 45 57.1282309248 -72 36 11.844637524 14.72 14.95 14.95   14.88 A0(Ib) 8 0
52 [H86] 79 Cl* 00 45 58.18 -72 35 53.1 17.18 17.09 16.97   10.90 ~ 6 0
53 OGLE-CL SMC 182 Cl* 00 46 01.63 -73 23 44.4           ~ 10 0
54 OGLE-CL SMC 33 Cl* 00 46 12.26 -73 23 34.0           ~ 7 0
55 LHA 115-N 16 Em* 00 46 19.8 -73 23 33           ~ 25 0
56 OGLE-CL SMC 35 Cl* 00 46 33.72 -72 46 25.9           ~ 12 0
57 OGLE-CL SMC 185 Cl* 00 46 34.04 -72 45 55.7           ~ 9 0
58 OGLE-CL SMC 36 Cl* 00 46 34.71 -72 44 25.2 14.75 14.50 13.76   12.49 ~ 17 0
59 SMC ASS 9 As* 00 46 56 -73 23.1           ~ 5 0
60 OGLE-CL SMC 40 Cl* 00 47 01.18 -73 23 34.7           ~ 10 0
61 OGLE-CL SMC 187 Cl* 00 47 05.87 -73 22 16.6           ~ 14 0
62 [H86] 95 As* 00 47 37 -73 00.9           ~ 7 0
63 [H86] 96 Cl* 00 47 44 -73 00.8           ~ 4 0
64 OGLE-CL SMC 42 Cl* 00 47 49.72 -73 28 42.2           ~ 14 0
65 OGLE-CL SMC 45 OpC 00 48 02.85 -73 29 17.8 14.21 14.20 14.00   13.78 ~ 27 0
66 LHA 115-N 26 PN 00 48 08.624 -73 14 54.62 14.70 15.22 14.31   14.57 ~ 61 1
67 DEM S 38 HII 00 48 09.1 -73 14 09           ~ 18 0
68 LHA 115-N 25 Cl* 00 48 09.12 -73 14 19.1           ~ 41 1
69 LIN 106 Em* 00 48 09.2567602656 -73 14 15.990591768   13.93 13.75 14.70 14.47 O7.5V(n) 34 0
70 OGLE-CL SMC 190 As* 00 48 13.20 -72 47 34.7           ~ 10 0
71 OGLE-CL SMC 191 As* 00 48 20.19 -72 47 42.1           ~ 9 0
72 Bruck 50 Cl* 00 49 02.0 -73 21 44           ~ 10 0
73 HD 4862 s*b 00 49 02.9699992181 -73 21 40.929638271   10.968 10.974 11.271   B5Ia 57 0
74 OGLE-CL SMC 194 Cl* 00 49 05.58 -73 21 09.8           ~ 12 0
75 [BS95] 43 As* 00 49 15 -73 22.3           ~ 7 0
76 Cl Lindsay 39 Cl* 00 49 16.16 -73 22 18.6 12.93 12.84 12.53   12.30 ~ 30 0
77 LHA 115-N 33 EmO 00 49 29.0386026708 -73 26 33.266620360   16.28 15.92 15.74 14.70 O6.5-7V 23 0
78 [MA93] 301 Em* 00 49 30.221 -73 26 23.07     16.7   16.42 ~ 7 0
79 OGLE-CL SMC 56 As* 00 49 36.29 -72 50 12.7           ~ 9 0
80 OGLE SMC-ECL- 1719 EB* 00 49 42.8847403217 -73 10 37.819004470       16.298 16.609 ~ 4 1
81 [H86] 110 As* 00 49 44 -72 51.2           ~ 8 0
82 OGLE-CL SMC 58 Cl* 00 49 45.43 -72 51 58.0           ~ 14 0
83 LHA 115-N 34 Em* 00 49 46.3392547272 -73 10 25.746721644   15.09 15.8     ~ 12 1
84 Bruck 53 Cl* 00 50 03.82 -73 23 03.9           ~ 14 0
85 OGLE-CL SMC 199 As* 00 50 15.07 -73 03 14.6           ~ 6 0
86 OGLE-CL SMC 59 As* 00 50 16.06 -73 01 59.6           ~ 11 0
87 Bruck 55 Cl* 00 50 20.54 -73 23 12.1 13.93 14.10 13.90   13.60 ~ 17 0
88 [H86] 106 Cl* 00 50 37 -73 20.2           ~ 4 0
89 OGLE-CL SMC 200 Cl* 00 50 37.54 -72 58 42.1 13.73 13.74 13.24   12.51 ~ 14 0
90 OGLE-CL SMC 64 Cl* 00 50 39.55 -72 57 54.8           ~ 16 0
91 OGLE-CL SMC 63 As* 00 50 41.40 -73 03 31.6 12.71 12.69 12.31   11.87 ~ 12 0
92 OGLE-CL SMC 201 As* 00 50 42.49 -73 23 49.0           ~ 9 0
93 [H86] 108 Cl* 00 50 53 -73 24.4           ~ 7 0
94 OGLE-CL SMC 65 Cl* 00 50 54.62 -73 03 26.9           ~ 9 0
95 OGLE-CL SMC 73 Cl* 00 51 44.13 -72 50 23.3 13.41 13.63 13.25   12.67 ~ 15 0
96 OGLE SMC103.4 34893 EB* 00 51 46.30 -73 27 58.7     18.376 18.57 18.370 ~ 8 0
97 LIN 184 Em* 00 51 47.6 -72 50 46   14.64 14.2     ~ 22 0
98 [BS95] 53 As* 00 51 50 -73 28.6           ~ 4 0
99 IRAS 00500-7306 C* 00 51 50.19 -72 50 49.6     18.334   15.487 C 34 0
100 [H86] 122 Cl* 00 51 58 -73 27.7           ~ 6 0
101 [H86] 134 Cl* 00 52 -73.0           ~ 1 0
102 DEM S 70 HII 00 52.2 -73 21           ~ 5 0
103 OGLE-CL SMC 77 Cl* 00 52 13.34 -73 00 12.2           ~ 11 0
104 OGLE-CL SMC 78 Cl* 00 52 16.56 -73 01 04.0           ~ 16 0
105 Bruck 64 Cl* 00 52 30.30 -73 02 59.0           ~ 12 0
106 SMC ASS 29 As* 00 52 32 -73 03.1           ~ 7 0
107 OGLE-CL SMC 211 Cl* 00 52 32.15 -73 02 10.3           ~ 8 0
108 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
109 SMC ASS 30 As* 00 52 42 -73 00.0           ~ 7 0
110 [BS95] 61 As* 00 52 43 -73 01.8           ~ 6 0
111 NAME [H86] 134w Cl* 00 52 44.52 -72 59 24.2           ~ 5 0
112 Bruck 65 Cl* 00 52 45.25 -72 59 01.5 12.81 13.21 12.98   12.74 ~ 16 0
113 OGLE-CL SMC 84 Cl* 00 52 46.69 -73 24 25.4           ~ 12 0
114 NAME [H86] 134e Cl* 00 52 48.29 -72 59 22.2           ~ 7 0
115 Bruck 67 Cl* 00 52 48.37 -73 24 41.4 13.92 14.02 13.39   12.57 ~ 17 0
116 DEM S 73 HII 00 52 50 -73 24.5           ~ 6 0
117 [BS95] 255 Cl* 00 52 52 -73 01.8           ~ 7 0
118 NGC 294 Cl* 00 53 05.59 -73 22 49.4 12.66 12.67 12.24   11.61 ~ 44 1
119 OGLE-CL SMC 214 Cl* 00 53 08.54 -72 49 57.7           ~ 9 0
120 [H86] 139 Cl* 00 53 11 -72 50.1           ~ 5 0
121 Bruck 72 Cl* 00 53 26 -72 41.0           ~ 8 0
122 OGLE-CL SMC 93 Cl* 00 53 31.29 -72 40 04.2           ~ 11 0
123 [BS95] 67 As* 00 53 32 -73 21.0           ~ 7 0
124 [BS95] 257 As* 00 53 36 -72 38.5           ~ 7 0
125 SMC ASS 35 As* 00 53 40 -72 41.0           ~ 9 0
126 OGLE-CL SMC 94 Cl* 00 53 40.09 -72 39 35.3           ~ 6 0
127 LHA 115-N 52A Em* 00 53 40.5 -72 39 37   14.69 14.6     ~ 15 0
128 LHA 115-N 52 EmO 00 53 41.8 -72 39 28           ~ 9 0
129 OGLE-CL SMC 95 As* 00 53 42.05 -73 21 31.5           ~ 10 0
130 Bruck 73 Em* 00 53 42.31 -72 39 14.6   14.61 14.6     ~ 17 0
131 [H86] 148 Cl* 00 53 55 -72 40.1           ~ 8 0
132 OGLE-CL SMC 217 As* 00 53 56.49 -72 51 23.8           ~ 10 0
133 OGLE-CL SMC 97 As* 00 54 11.00 -72 51 54.1           ~ 11 0
134 SMC ASS 37 As* 00 54 43 -72 06.7           ~ 5 0
135 Bruck 78 Cl* 00 54 46.13 -72 07 32.4 14.17 14.47 14.63   14.66 ~ 11 0
136 ESO 51-7 Cl* 00 54 54.21 -72 06 48.0 12.71 13.01 13.07   11.70 ~ 19 0
137 [BS95] 260 As* 00 55 12 -72 41.0           ~ 4 0
138 OGLE-CL SMC 102 Cl* 00 55 12.04 -72 41 00.0           ~ 14 1
139 [H86] 160 Cl* 00 55 21 -72 40.2           ~ 5 0
140 SMC ASS 40 As* 00 56 22 -72 27.3           ~ 6 0
141 OGLE-CL SMC 223 Cl* 00 56 25.59 -72 29 45.1           ~ 8 0
142 OGLE-CL SMC 108 Cl* 00 56 34.48 -72 30 08.3           ~ 9 0
143 OGLE-CL SMC 226 Cl* 00 57 49.80 -72 30 29.4           ~ 9 0
144 OGLE-CL SMC 227 Cl* 00 57 50.23 -72 26 23.6           ~ 13 0
145 [H86] 176 Cl* 00 57 53 -72 29.8           ~ 7 0
146 OGLE-CL SMC 112 Cl* 00 57 57.14 -72 26 42.0           ~ 12 0
147 LHA 115-N 62 Y*O 00 57 57.243 -72 39 15.91     15.9     O8 25 0
148 [B91] 13 As* 00 57 58 -72 32.9           ~ 6 0
149 SMC ASS 42 As* 00 58 07 -72 39.6           ~ 6 0
150 LHA 115-N 63 Em* 00 58 16.29 -72 38 46.8   14.64 14.5     ~ 41 1
151 [BS95] 269 As* 00 58 19 -72 13.2           ~ 8 0
152 DEM S 95 Em* 00 58 20.1 -72 40 10   14.34       ~ 27 0
153 [BS95] 270 As* 00 58 23 -72 12.7           ~ 8 0
154 LHA 115-N 64 Em* 00 58 24.5158695644 -72 39 58.839884125       15.236   O7.5V:n 14 0
155 DEM S 98 HII 00 58 36.6 -72 14 08           ~ 11 0
156 [BS95] 271 Cl* 00 58 37 -72 13.4           ~ 7 0
157 OGLE-CL SMC 229 Cl* 00 58 38.08 -72 14 04.4           ~ 10 0
158 [BS95] 93 Cl* 00 59 36 -71 44.2           ~ 4 0
159 Bruck 97 Cl* 00 59 37 -71 44.7           ~ 5 0
160 [BS95] 273 As* 00 59 40.56 -71 44 34.2 15.55 15.42 15.07   14.19 ~ 6 0
161 DEM S 105 HII 00 59 42.1 -71 43 43           ~ 7 0
162 IC 1611 OpC 00 59 48.73 -72 20 01.4 12.14 12.26 11.96   11.33 ~ 35 0
163 OGLE-CL SMC 119 Cl* 00 59 56.87 -72 22 24.4           ~ 17 0
164 Bruck 98 Cl* 01 00 -73.9           ~ 1 0
165 IC 1612 OpC 01 00 00.26 -72 22 18.2 12.59 12.84 12.31   11.33 ~ 31 0
166 OGLE-CL SMC 230 Cl* 01 00 32.28 -72 15 30.7 17.69 16.46 15.55   14.31 ~ 17 0
167 OGLE-CL SMC 124 Cl* 01 00 33.87 -72 21 50.8 12.25 12.71 12.54   12.03 ~ 28 0
168 OGLE-CL SMC 123 Cl* 01 00 34.37 -72 14 19.2 14.50 15.12 15.24   15.35 ~ 13 0
169 AzV 256 s*b 01 00 41.9351410560 -72 30 28.948761252 13.47 14.59 14.71   14.95 O9.7I(n) 24 0
170 OGLE-CL SMC 231 Cl* 01 00 58.19 -72 32 24.9           ~ 10 0
171 OGLE-CL SMC 232 Cl* 01 01 13.58 -72 33 03.5           ~ 9 0
172 [BS95] 102 Cl* 01 01 14 -73 47.8           ~ 6 0
173 HW 44 Cl* 01 01 22 -73 47.2           ~ 11 0
174 Bruck 110 Cl* 01 02 11 -72 00.2           ~ 8 0
175 Bruck 112 Cl* 01 02 23 -72 00.2           ~ 14 0
176 NAME [B91] 22W As* 01 02 24 -72 00.9           ~ 7 0
177 [RZ2005] 141 OpC 01 02 49.40 -73 44 19.1 14.76 14.99 14.57   13.90 ~ 9 0
178 SMC ASS 53 As* 01 03 27 -72 04.9           ~ 11 0
179 NGC 376 Cl* 01 03 50.21 -72 49 33.5 10.83 11.16 10.90   10.17 ~ 57 0
180 OGLE-CL SMC 138 As* 01 03 53.02 -72 06 10.5           ~ 11 0
181 OGLE-CL SMC 235 As* 01 03 58.96 -72 48 18.3           ~ 7 0
182 OGLE-CL SMC 144 As* 01 04 05.23 -72 07 14.6           ~ 14 0
183 [BS95] 122 Cl* 01 04 18 -73 10.3           ~ 5 0
184 Bruck 119 Cl* 01 04 19 -73 09.9           ~ 7 0
185 LHA 115-N 78B Em* 01 05 04.03680 -71 59 25.5588         18.893 ~ 22 0
186 LHA 115-N 78A Em* 01 05 04.9046621400 -71 59 00.562248024   15.25 15.1   16.09 ~ 16 1
187 OGLE-CL SMC 147 Cl* 01 05 07.95 -71 59 45.1           ~ 14 0
188 NGC 395 As* 01 05 08.0 -71 59 49           ~ 21 1
189 LHA 115-N 78D EmO 01 05 12.1 -71 58 25           ~ 15 0
190 LHA 115-N 78 HII 01 05 12.8 -72 00 38           ~ 35 1
191 OGLE-CL SMC 146 As* 01 05 13.40 -71 59 41.8           ~ 11 0
192 [BS95] 130 As* 01 05 56 -72 04.2           ~ 4 0
193 [BS95] 132 As* 01 06 01 -72 03.6           ~ 4 0
194 [BS95] 133 As* 01 06 23 -71 55.2           ~ 4 0
195 DEM S 132 HII 01 06 25.0 -71 57 37           ~ 8 0
196 [BS95] 134 As* 01 06 25 -71 56.1           ~ 5 0
197 [BS95] 135 As* 01 06 40 -71 55.2           ~ 4 0
198 [BS95] 136 As* 01 06 48 -71 54.9           ~ 7 0
199 Bruck 134 As* 01 09 01 -73 12.4           ~ 9 0
200 [BS95] 142 Cl* 01 09 07.73 -73 12 20.7 13.14 13.74 13.84   13.83 ~ 6 0
201 SMC ASS 60 As* 01 09 08 -73 11.9           ~ 5 0
202 HD 7113 Em* 01 09 12.94464 -73 11 38.8968     11.7     ~ 131 0
203 Bruck 135 Cl* 01 09 19 -73 11.2           ~ 9 0
204 NGC 422 OpC 01 09 24.50 -71 45 59.0 13.56 13.45 13.26   12.83 ~ 33 0
205 IC 1641 Cl* 01 09 39.74 -71 46 02.8 15.43 15.12 14.99   14.66 ~ 18 0
206 HW 71 Cl* 01 15.4 -72 23           ~ 4 0
207 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
208 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
209 NGC 2214 OpC 06 12 57 -68 15.6   11.04 10.93     ~ 119 0

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