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New Star Clusters in the Magellanic Bridge and the Outskirts of the Small Magellanic Cloud

The Magellanic System (MS) encompasses the nearest neighbors of the Milky Way, the Large (LMC) and Small (SMC) Magellanic Clouds, and the Magellanic Bridge (MBR). This system contains a diverse sample of star clusters. Their parameters, such as the spatial distribution, chemical composition and age distribution yield important information about the formation scenario of the whole Magellanic System. Using deep photometric maps compiled in the fourth phase of the Optical Gravitational Lensing Experiment (OGLE-IV) we present the most complete catalog of star clusters in the Magellanic System ever constructed from homogeneous, long time-scale photometric data. In this second paper of the series, we show the collection of star clusters found in the area of about 360 square degrees in the MBR and in the outer regions of the SMC. Our sample contains 198 visually identified star cluster candidates, 75 of which were not listed in any of the previously published catalogs. The new discoveries are mainly young small open clusters or clusters similar to associations.

PLEASE cite the following paper when refering to these results: Sitek et al., 2017, Acta Astron, 67, 363, (arXiv:1801:05867)

Distribution of star clusters in the MBR and outer regions of SMC on the OGLE-IV fields


Table 1. NEW star clusters in the MBR and outer regions of SMC (red dots)
OGLE number OGLE-IV field centroid X
[pix]
centroid Y
[pix]
RA DEC Radius from
KDE ["]
reliability
OGLE-MBR-CL-0001MBR100.3213943671:46:02.68-69:42:29.9320.7
OGLE-MBR-CL-0002MBR101.0419893711:50:17.42-71:53:28.1490.7
OGLE-MBR-CL-0003MBR101.05174038581:48:33.32-71:38:22.0500.7
OGLE-MBR-CL-0004MBR101.067908651:47:25.41-71:51:11.4480.7
OGLE-MBR-CL-0005MBR101.1530337451:46:01.10-71:19:14.9430.8
OGLE-MBR-CL-0006MBR101.2886030331:53:12.39-70:45:09.7290.9
OGLE-MBR-CL-0007MBR102.1583541901:44:09.39-72:31:21.2360.9
OGLE-MBR-CL-0008MBR102.20164819441:51:37.98-72:23:22.4340.7
OGLE-MBR-CL-0009MBR103.10179518631:52:44.33-73:55:34.7241
OGLE-MBR-CL-0010MBR103.1337523291:47:29.34-73:53:39.5370.9
OGLE-MBR-CL-0011MBR103.13191338831:45:54.59-73:46:50.0440.8
OGLE-MBR-CL-0012MBR103.1610732691:41:06.00-73:49:00.9220.9
OGLE-MBR-CL-00131MBR103.255914611:40:39.05-73:43:05.8271
OGLE-MBR-CL-0014MBR104.21124038511:47:29.66-74:42:54.8331
OGLE-MBR-CL-0015MBR104.26109516561:54:37.56-74:32:42.9360.9
OGLE-MBR-CL-0016MBR104.2692725001:54:46.63-74:29:04.3270.9
OGLE-MBR-CL-0017MBR104.3166019211:43:28.27-74:31:45.7420.8
OGLE-MBR-CL-0018MBR104.3136441491:43:50.47-74:22:12.1380.8
OGLE-MBR-CL-00192MBR104.32132031821:40:29.43-74:26:05.3311
OGLE-MBR-CL-0020MBR105.2516462531:35:04.87-76:11:19.6210.9
OGLE-MBR-CL-0021MBR108.13176122352:03:13.01-73:16:49.3250.9
OGLE-MBR-CL-0022MBR109.038755732:08:40.16-74:57:28.7450.7
OGLE-MBR-CL-0023MBR109.0453934162:06:38.84-74:45:17.0210.6
OGLE-MBR-CL-0024MBR109.06160433922:00:45.78-74:45:07.6350.8
OGLE-MBR-CL-0025MBR109.11176425292:07:38.63-74:29:42.8321
OGLE-MBR-CL-0026MBR109.18172527592:12:11.91-74:10:23.2280.6
OGLE-MBR-CL-0027MBR109.314518202:02:12.63-73:59:32.5310.9
OGLE-MBR-CL-0028MBR112.01137413822:28:02.11-73:02:53.4230.8
OGLE-MBR-CL-0029MBR113.0816328622:31:30.69-73:59:26.9211
OGLE-MBR-CL-0030MBR113.0998032882:29:53.33-73:49:10.8251
OGLE-MBR-CL-0031MBR117.27194338252:39:28.54-71:19:02.7360.6
OGLE-MBR-CL-0032MBR118.069788792:34:08.09-73:42:14.6190.8
OGLE-MBR-CL-0033MBR118.1162326822:41:03.58-73:15:12.4171
OGLE-MBR-CL-0034MBR119.064963542:36:38.95-74:58:21.0240.6
OGLE-MBR-CL-0035MBR123.2918049732:54:42.98-73:22:17.4280.9/ICA65ne=[A]
OGLE-SMC-CL-02391SMC738.017226041:40:38.72-73:43:03.6281
OGLE-SMC-CL-0240SMC738.02204941231:37:02.76-73:28:18.6270.8
OGLE-SMC-CL-0241SMC738.0355022321:36:24.26-73:36:30.8370.9
OGLE-SMC-CL-0242SMC738.05130710541:31:13.45-73:41:35.3261
OGLE-SMC-CL-0243SMC738.0759027501:27:35.51-73:33:58.2440.9
OGLE-SMC-CL-0244SMC738.0748823241:27:41.17-73:35:49.0480.6
OGLE-SMC-CL-0245SMC738.1018208911:37:15.96-73:22:53.8370.9
OGLE-SMC-CL-0246SMC738.1159911511:36:19.48-73:21:49.5440.8
OGLE-SMC-CL-0247SMC738.14147827071:28:57.40-73:14:55.7381
OGLE-SMC-CL-0248SMC738.145762131:29:49.16-73:25:48.7450.8
OGLE-SMC-CL-0249SMC738.1483430121:29:36.38-73:13:39.7380.8
OGLE-SMC-CL-0250SMC738.16159327051:24:33.75-73:14:21.2440.9
OGLE-SMC-CL-0251SMC738.16152330301:24:38.61-73:12:57.6470.9
OGLE-SMC-CL-02522SMC739.08111832321:40:30.50-74:26:04.9281
OGLE-SMC-CL-0253SMC739.2515023251:23:11.37-74:12:06.0370.7
OGLE-SMC-CL-0254SMC739.2544724601:22:52.99-74:11:28.5500.7
OGLE-SMC-CL-0255SMC739.2817614481:34:30.37-73:56:59.9311
OGLE-SMC-CL-0256SMC740.096366771:36:41.78-75:51:15.0241
OGLE-SMC-CL-0257SMC740.247206901:21:30.56-75:33:15.2391
OGLE-SMC-CL-0258SMC734.2423321901:06:44.77-74:49:58.5321
OGLE-SMC-CL-02593SMC735.2427715451:01:50.99-76:06:38.4270.8
OGLE-SMC-CL-0260SMC735.31191510691:02:36.01-75:49:22.7340.6
OGLE-SMC-CL-02613SMC728.0181416441:01:51.09-76:06:35.2230.9
OGLE-SMC-CL-0262SMC730.1095413211:26:31.46-70:16:09.4230.9
OGLE-SMC-CL-0263SMC722.14157523770:28:02.60-76:21:12.3191
OGLE-SMC-CL-0264SMC706.16141919890:18:22.14-71:27:02.2181
OGLE-SMC-CL-0265SMC708.08206926160:25:17.91-73:52:10.6391
OGLE-SMC-CL-0266SMC708.11176414740:18:56.07-73:57:37.4520.7
OGLE-SMC-CL-0267SMC708.1773816580:26:32.81-73:38:07.2530.6
OGLE-SMC-CL-0268SMC708.2883919490:19:48.95-73:18:05.7341
OGLE-SMC-CL-0269SMC714.01182040910:34:48.90-74:42:18.5521
OGLE-SMC-CL-0270SMC714.13125636610:26:04.88-74:24:59.5500.9
OGLE-SMC-CL-02714SMC714.198342350:33:27.41-74:21:42.3361
OGLE-SMC-CL-0272SMC721.234309040:36:31.49-74:55:46.7391
OGLE-SMC-CL-02734SMC721.32131642350:33:27.97-74:21:45.5410.9
OGLE-SMC-CL-0274SMC724.02191919461:11:23.08-71:10:00.4470.9
OGLE-SMC-CL-0275SMC724.09183918841:13:18.32-70:50:45.7401
OGLE-SMC-CL-0276SMC724.16107026091:00:46.51-70:47:12.8401
OGLE-SMC-CL-0277SMC724.24152126741:02:20.76-70:29:08.4370.8
OGLE-SMC-CL-0278SMC731.09173637201:27:30.34-71:19:26.5360.9
1,2,3,4 duplicate pairs of objects independently detected on overlapping fields.
If you want to download this table please click here



Table 2. Star clusters in the MBR and outer regions of SMC which where already known (blue dots)

OGLE number OGLE-IV field name centroid X
[pix]
centroid Y
[pix]
RA DEC Radius from
KDE ["]
OGLE-MBR-CL-0036MBR100.23BS19610837971:48:01.75-70:00:13.120
OGLE-MBR-CL-0037MBR101.16HW85211741781:42:29.05-71:16:52.817
OGLE-MBR-CL-0038MBR102.05BS19811273461:47:56.36-73:07:38.735
OGLE-MBR-CL-00391MBR103.01NGC796,L115,WG9,ESO30SC620521651:56:44.64-74:13:09.923
OGLE-MBR-CL-0040MBR103.02BS207164918591:52:57.31-74:14:56.729
OGLE-MBR-CL-0041MBR103.03L114,WG4,ESO30SC519664421:50:20.50-74:21:10.328
OGLE-MBR-CL-0042MBR103.03WG5se140728651:50:55.38-74:10:43.338
OGLE-MBR-CL-0043MBR103.07HW8687528441:42:23.53-74:10:24.742
OGLE-MBR-CL-0044MBR103.10BS21277617101:53:48.21-73:56:09.325
OGLE-MBR-CL-0045MBR103.10BS21010197241:53:34.18-74:00:26.738
OGLE-MBR-CL-0046MBR103.10WG6135611441:53:12.57-73:58:39.645
OGLE-MBR-CL-0047MBR103.21L113,ESO30SC45704091:49:30.93-73:43:57.052
OGLE-MBR-CL-0048MBR103.29BS198207042561:48:01.05-73:07:55.723
OGLE-MBR-CL-00492MBR103.32WG170713311:42:53.16-73:20:13.621
OGLE-MBR-CL-0050MBR104.17BS21888237811:57:16.53-74:42:32.031
OGLE-MBR-CL-0051MBR104.22WG2/BS195114941921:45:14.28-74:41:23.330
OGLE-MBR-CL-0052MBR104.28WG313357531:49:43.75-74:36:55.326
OGLE-MBR-CL-0053MBR104.28BSBD3/BBDS216172311:49:25.56-74:39:11.526
OGLE-MBR-CL-0054MBR104.28BS202118626311:49:52.27-74:28:49.045
OGLE-MBR-CL-0055MBR104.28L114,WG4,ESO30SC576843141:50:18.00-74:21:34.320
OGLE-MBR-CL-0056MBR104.31BS19231013441:43:50.16-74:34:16.741
OGLE-MBR-CL-0057MBR104.31BS19326617751:43:53.64-74:32:25.236
OGLE-MBR-CL-0058MBR109.03WG16117127362:08:19.40-74:48:11.235
OGLE-MBR-CL-0059MBR109.03BS228169933072:07:44.30-74:45:44.441
OGLE-MBR-CL-0060MBR109.04ICA1135542852:06:50.82-74:41:31.432
OGLE-MBR-CL-0061MBR109.08BSBD4164642822:14:38.91-74:21:30.422
OGLE-MBR-CL-0062MBR109.11WG17123720422:08:13.12-74:31:48.334
OGLE-MBR-CL-0063MBR109.11BS229161432612:07:47.97-74:26:31.826
OGLE-MBR-CL-0064MBR109.11WG1517556682:07:40.03-74:37:47.134
OGLE-MBR-CL-0065MBR109.12BS226143140772:05:40.86-74:23:00.136
OGLE-MBR-CL-0066MBR109.13WG1413022422:04:45.46-74:30:57.622
OGLE-MBR-CL-0067MBR109.13BS22379127382:04:02.81-74:28:46.938
OGLE-MBR-CL-0068MBR109.14WG11177615952:00:38.09-74:33:30.820
OGLE-MBR-CL-0069MBR109.15WG1029040131:59:59.09-74:22:57.545
OGLE-MBR-CL-0070MBR109.18BS235205735542:11:49.50-74:06:59.031
OGLE-MBR-CL-0071MBR109.19BS233100630222:10:40.97-74:09:20.627
OGLE-MBR-CL-0072MBR109.19BS23455313042:11:12.23-74:16:44.921
OGLE-MBR-CL-0073MBR109.24BS22050113361:59:47.87-74:16:30.434
OGLE-MBR-CL-0074MBR109.25BS216/BS217107615181:56:55.40-74:15:20.630
OGLE-MBR-CL-00751MBR109.25NGC796,L115,WG9,ESO30SC6/BS215126420221:56:44.78-74:13:08.124
OGLE-MBR-CL-0076MBR109.25WG8137511301:56:35.44-74:16:58.325
OGLE-MBR-CL-0077MBR109.28BS232/BS231943472:09:20.82-74:01:38.324
OGLE-MBR-CL-0078MBR109.30WG13210915842:02:44.28-73:56:16.022
OGLE-MBR-CL-0079MBR110.30ICA645441622:04:21.20-74:59:01.834
OGLE-MBR-CL-0080MBR113.06BS24320626172:19:28.70-74:11:45.431
OGLE-MBR-CL-0081MBR113.08ICA57191417062:31:11.50-73:55:51.028
OGLE-MBR-CL-0082MBR113.10IDK2w,ICA45135441602:27:16.01-73:45:38.640
OGLE-MBR-CL-0083MBR113.10BS245121111942:27:28.38-73:58:29.431
OGLE-MBR-CL-0084MBR113.10ICA49/ICA4829335732:28:22.51-73:48:05.428
OGLE-MBR-CL-0085MBR113.16BS240/ICA3441013882:14:50.33-73:57:10.931
OGLE-MBR-CL-0086MBR113.16BS239/ICA346469722:14:34.80-73:58:56.628
OGLE-MBR-CL-00873MBR123.26ICA7114852453:01:33.52-73:25:08.524
OGLE-MBR-CL-0088MBR128.03BS247166438223:10:22.86-73:30:07.518
OGLE-MBR-CL-00893MBR128.15ICA7117873903:01:33.27-73:25:08.224
OGLE-MBR-CL-0090MBR141.07NGC1466,SL1,LW1,ESO54SC16,KMHK1102334303:44:26.41-71:40:50.247
OGLE-MBR-CL-0091MBR160.11L116,ESO13SC25104816191:55:36.02-77:39:15.517
OGLE-SMC-CL-0279SMC738.06B16490832651:29:27.77-73:31:56.527
OGLE-SMC-CL-0280SMC738.06GHK24/GHK29/GKH22/GHK51/NGC602,L105, ESO29SC43, H-A6878829091:29:34.82-73:33:29.434
OGLE-SMC-CL-0281SMC738.06SGDH-cluster-A112532391:29:14.50-73:32:02.136
OGLE-SMC-CL-02822SMC738.08WG149113431:42:53.34-73:20:15.325
OGLE-SMC-CL-0283SMC738.12H86-2136724011:34:41.19-73:16:27.229
OGLE-SMC-CL-0284SMC738.13L107,H-A6914144521:31:08.83-73:24:51.141
OGLE-SMC-CL-0285SMC738.13B16517232391:30:49.89-73:25:45.243
OGLE-SMC-CL-0286SMC738.13BS18619963291:30:33.40-73:25:20.746
OGLE-SMC-CL-0287SMC738.16BS282/L104/H-A676547451:25:25.86-73:22:58.146
OGLE-SMC-CL-0288SMC738.16H86-21115673081:24:30.28-73:24:41.946
OGLE-SMC-CL-0289SMC738.16HW81204038221:24:09.76-73:09:27.262
OGLE-SMC-CL-02906SMC738.16HW82,BS176/HCD99-1176935861:24:25.25-73:10:31.246
OGLE-SMC-CL-02916SMC738.16HW82,BS176/HCD99-1176735881:24:25.37-73:10:30.457
OGLE-SMC-CL-0292SMC738.21L110,ESO29SC4830937931:34:25.67-72:52:21.845
OGLE-SMC-CL-0293SMC738.22BS187162940801:31:01.36-72:51:03.128
OGLE-SMC-CL-0294SMC739.20L109,ESO29SC46144429221:33:12.46-74:10:02.724
OGLE-SMC-CL-0295SMC739.29B166119522511:31:11.93-73:53:35.645
OGLE-SMC-CL-0296SMC740.03L106,ESO29SC44149024951:30:38.30-76:03:15.328
OGLE-SMC-CL-0297SMC740.18NGC643,L111,ESO29SC5020297121:34:55.99-75:33:17.138
OGLE-SMC-CL-0298SMC740.18L112108320361:35:58.27-75:27:26.023
OGLE-SMC-CL-0299SMC740.31HW79201438171:22:44.71-75:00:30.439
OGLE-SMC-CL-0300SMC737.14L108114536821:31:38.99-71:56:49.429
OGLE-SMC-CL-0301SMC737.17BS19081221731:43:52.43-71:44:51.931
OGLE-SMC-CL-0302SMC737.21BS188164924511:35:11.61-71:44:15.537
OGLE-SMC-CL-03034SMC737.32BS18478134521:30:11.16-71:20:19.727
OGLE-SMC-CL-0304SMC736.01HW8516232851:42:27.76-71:16:47.820
OGLE-SMC-CL-0305SMC736.02HW8433219191:41:40.48-71:09:53.230
OGLE-SMC-CL-0306SMC734.08HW7979839231:22:49.14-75:00:04.941
OGLE-SMC-CL-0307SMC734.12HW66,ESO29SC36183014261:12:04.82-75:11:40.138
OGLE-SMC-CL-0308SMC717.25L38,ESO51SC382026740:48:50.91-69:52:08.740
OGLE-SMC-CL-0309SMC716.10ESO51SC9203130810:58:58.01-68:54:54.023
OGLE-SMC-CL-0310SMC710.26L32,ESO51SC2158628630:47:24.56-68:55:15.125
OGLE-SMC-CL-0311SMC706.12NGC121,K2,L10,ESO50SC126207960:26:52.99-71:32:56.646
OGLE-SMC-CL-03125SMC703.01L224138020:12:57.34-73:29:30.630
OGLE-SMC-CL-0313SMC703.05L1,ESO28SC867440900:03:47.83-73:28:43.424
OGLE-SMC-CL-0314SMC715.28L5,ESO28SC16210729740:22:42.73-75:04:33.823
OGLE-SMC-CL-0315SMC761.02AM-3,ESO28SC4821299423:48:59.38-72:56:43.616
OGLE-SMC-CL-0316SMC707.01BS293719290:28:31.18-73:00:40.450
OGLE-SMC-CL-0317SMC707.03B426517490:24:57.18-73:01:48.440
OGLE-SMC-CL-0318SMC707.09K7,L11,ESO28SC2216786990:27:44.16-72:46:46.946
OGLE-SMC-CL-0319SMC707.11K3,L8,ESO28SC194525270:24:44.77-72:47:45.050
OGLE-SMC-CL-0320SMC707.17HW517125420:31:03.58-72:20:21.137
OGLE-SMC-CL-0321SMC707.29BOLOGNA-A166138340:21:30.47-71:56:03.535
OGLE-SMC-CL-0322SMC708.03B1139839260:19:19.65-74:06:23.336
OGLE-SMC-CL-0323SMC708.04L3,ESO28SC131049770:18:25.79-74:19:07.022
OGLE-SMC-CL-0324SMC714.31K5,L7,ESO28SC1861142040:24:39.57-73:45:11.945
OGLE-SMC-CL-0325SMC708.10K1,L4,ESO28SC15139542520:21:31.25-73:45:27.145
OGLE-SMC-CL-0326SMC708.18K4,L6,ESO28SC17202112890:23:03.83-73:40:09.537
OGLE-SMC-CL-0327SMC708.19K1,L4,ESO28SC1514472160:21:27.97-73:44:54.141
OGLE-SMC-CL-03285SMC708.23L2120137560:12:55.25-73:29:27.929
OGLE-SMC-CL-0329SMC708.29HW11116630:18:23.44-73:23:40.536
OGLE-SMC-CL-0330SMC714.12B6100939240:28:39.66-74:23:55.651
OGLE-SMC-CL-0331SMC714.16B2104413060:19:18.10-74:34:26.225
OGLE-SMC-CL-0332SMC714.22K6,L9,ESO28SC20191542100:25:26.81-74:04:30.940
OGLE-SMC-CL-0333SMC724.03BS1445113671:10:43.92-71:16:50.251
OGLE-SMC-CL-0334SMC724.07B111171039031:02:01.10-71:01:11.540
OGLE-SMC-CL-0335SMC724.09HW6721442721:13:03.80-70:57:46.135
OGLE-SMC-CL-0336SMC724.12HW5617596961:07:41.73-70:56:08.426
OGLE-SMC-CL-0337SMC724.31L7313032281:04:24.97-70:20:32.326
OGLE-SMC-CL-03384SMC731.08BS18489234421:30:11.68-71:20:17.533
OGLE-SMC-CL-0339SMC731.15HW73114236591:16:24.75-71:19:36.133
OGLE-SMC-CL-0340SMC731.16NGC458,K69,L96,ESO51SC265876181:14:54.34-71:32:32.648
OGLE-SMC-CL-0341SMC731.16L9584633031:14:44.48-71:20:54.338
OGLE-SMC-CL-0342SMC731.20IC1708,L102,ESO52SC227914951:24:55.87-71:11:13.326
OGLE-SMC-CL-0343SMC731.27B16832425981:26:42.70-70:46:58.824
OGLE-SMC-CL-0344SMC739.05Field12-0122721591:29:52.83-74:50:48.228
OGLE-SMC-CL-0345SMC734.21Field16-0137433571:13:42.75-74:45:14.428
1,2,3,4,5 duplicate pairs of objects independently detected on overlapping fields.
6 duplicate pair
If you want to download this table please click here

Contact: msitek AT astrouw.edu.pl, msz AT astrouw.edu.pl



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