2005AJ....129..776N

Query : 2005AJ....129..776N

2005AJ....129..776N - Astron. J., 129, 776-789 (2005/February-0)

Near-infrared imaging observations of the N159/N160 complex in the Large Magellanic Cloud: large clusters of Herbig Ae/Be stars and sequential cluster formation.

NAKAJIMA Y., KATO D., NAGATA T., TAMURA M., SATO S., SUGITANI K., NAGASHIMA C., NAGAYAMA T., IWATA I., ITA Y., TANABE T., KURITA M., NAKAYA H. and BABA D.

Abstract (from CDS):

We have carried out deep near-infrared imaging observations of the N159/N160 star-forming region in the Large Magellanic Cloud. We observed an area of ∼380 arcmin2 (∼80,000 pc2 at the distance of the LMC) in the J, H, and Ksbands. The observations are deep enough to detect Herbig Ae/Be stars down to ∼3 M☉in the LMC. We discovered a total of 338 and 464 candidate Herbig Ae/Be and OB stars, respectively, based on the near-infrared colors and magnitudes. The Herbig Ae/Be candidates comprise 10 clusters, the OB star candidates 13. We discovered an embedded Herbig Ae/Be cluster in the N159 East giant molecular cloud (GMC) and a Herbig Ae/Be cluster at the northeast tip of the N159 South GMC. Together with two neighboring H II regions, the Herbig Ae/Be cluster at the tip of the N159S GMC provides a hint of the beginning of sequential cluster formation in N159S. The spatial distributions of the Herbig Ae/Be and OB clusters, in conjunction with previously known optical clusters and embedded massive stars, indicate (1) sequential cluster formation within each of the N159 and N160 star-forming regions and (2) large-scale sequential cluster formation over the entire observed region from N160 to N159S. Possible triggers for the large-scale cluster formation are the supergiant shell SGS 19 and an expanding superbubble. Some of the Herbig Ae/Be clusters in the N159/N160 complex are significantly larger in spatial extent than pre-main-sequence clusters of similar age in the Milky Way. Highly turbulent gas motion in the LMC is probably responsible for forming the large young clusters.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Star Clusters - Infrared: Stars - Galaxies: Magellanic Clouds - Stars: Formation - Stars: Pre-Main-Sequence

Nomenclature: Fig.1, Table 3: [NKN2005] N158-AN (Nos Y1, O1), [NKN2005] N159-AN (Nos Y1 to Y4, O1 to O3), [NKN2005] N159S-AN (No. Y1), [NKN2005] N160-ANN (Nos Y1 to Y5, O1 to O10). Fig.6, Table 5: [NKN2005] N159S Star N (Nos 1-6).

CDS comments: Par. 2, red stars cskd = [JHR80] D-, T = TVLM, BRI 0021 = BRI 0021-02

Simbad objects: 113

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Number of rows : 113
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 V* DY Psc BY* 00 24 24.6317407560 -01 58 19.954412004     19.42 17.301 15.022 M9.5V 210 1
2 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7062 0
3 LP 591-256 LM* 03 04 02.0608672392 +00 45 51.164454168   19.0 15.44 16.5 14.4 M6+D 29 0
4 LP 535-12 Er* 04 26 19.9396822953 +03 36 36.175901824   18.7   17.1   M6.5V 48 0
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17428 0
6 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2331 0
7 BSDL 2649 Cl* 05 38 10.92 -69 49 50.8           ~ 8 0
8 2MASX J05385348-6951459 Cl* 05 38 53.5238916816 -69 51 45.943749900           ~ 6 0
9 NGC 2074 As* 05 39 03 -69 29.9           ~ 62 0
10 BSDL 2683 ISM 05 39 06 -69 35.5           ~ 4 0
11 BSDL 2685 ISM 05 39 07 -69 35.4           ~ 4 0
12 [NKN2005] N158-Y1 Cl* 05 39 09.8 -69 29 56           ~ 4 0
13 [NKN2005] N158-O1 Cl* 05 39 10.0 -69 29 56           ~ 5 0
14 LHA 120-N 158 HII 05 39 11.220 -69 30 13.65           ~ 87 0
15 BSDL 2695 ISM 05 39 21 -69 35.4           ~ 4 0
16 LWKHK e Mas 05 39 29.41 -69 47 18.9           ~ 2 1
17 LHA 120-N 159N HII 05 39 29.5646426448 -69 47 21.604744284   18.47 16.99     ~ 16 0
18 BSDL 2703 ISM 05 39 30 -69 39.7           ~ 4 0
19 [NKN2005] N159-Y1 Cl* 05 39 31.0 -69 47 21           ~ 2 0
20 LHA 120-N 159W MoC 05 39 32.510 -69 46 02.74           ~ 92 0
21 BSDL 2706 Cl* 05 39 32.97 -69 53 31.1           ~ 7 0
22 BSDL 2708 Cl* 05 39 33.340 -69 54 41.43           ~ 7 0
23 [DCL92] 64 * 05 39 34.02 -69 47 14.4   15.49 14.57     B1 3 0
24 NGC 2077 Cl* 05 39 34.5 -69 39 19   11.71 11.71     ~ 41 1
25 LI-LMC 1501 IR 05 39 34.6 -69 45 34           ~ 7 1
26 AT20G J053937-694526 Rad 05 39 37.5 -69 45 26           ~ 11 1
27 [CC98] LI-LMC 1501 W * 05 39 37.60 -69 46 11.5           O7.5V 9 1
28 [NKN2005] N160-Y1 Cl* 05 39 38.2 -69 39 10           ~ 3 0
29 X LMC X-1 HXB 05 39 38.8284304464 -69 44 35.531553624   14.8 14.5     O8(f)p 640 2
30 NGC 2079 Cl* 05 39 39.0 -69 46 24           ~ 64 0
31 LWKHK g Mas 05 39 39.05 -69 39 10.8           ~ 3 1
32 [NKN2005] N159-Y2 Cl* 05 39 39.3 -69 46 08           ~ 3 0
33 2MASS J05394188-6946122 Y*O 05 39 41.886 -69 46 12.21           O6.5V 19 1
34 NGC 2080 HII 05 39 42.6 -69 38 50           ~ 99 1
35 IRAS 05401-6940 IR 05 39 43.2 -69 38 45           ~ 5 0
36 [DCL92] 304 * 05 39 45.2189725632 -69 45 33.403228092   15.11 14.03     B0V 6 0
37 LHA 120-N 159 HII 05 39 46.650 -69 45 39.94           ~ 276 2
38 LHA 120-N 160 EmO 05 39 47.9 -69 37 08           ~ 119 1
39 [NKN2005] N159-O1 Cl* 05 39 51.6 -69 44 09           ~ 2 0
40 [NKN2005] N159-O2 Cl* 05 39 52.5 -69 45 19           ~ 2 0
41 NGC 2078 EmO 05 39 54 -69 44.9   11.01 10.89     ~ 30 0
42 BSDL 2727 ISM 05 39 54 -69 43.4           ~ 5 0
43 [NKN2005] N160-O2 Cl* 05 39 54.3 -69 39 10           ~ 2 0
44 [BJI2000] N159 III Rad 05 39 55.5 -69 45 10           ~ 2 0
45 [NKN2005] N159S Star 1 * 05 39 56.9 -69 50 24           ~ 1 0
46 LH 103 As* 05 39 57 -69 39.6   8.50 8.09     ~ 29 0
47 BSDL 2729 Cl* 05 39 57 -69 36.9           ~ 6 0
48 [NKN2005] N159-Y3 Cl* 05 39 57.5 -69 43 32           ~ 2 0
49 H88 304 Cl* 05 39 58 -69 36.5           ~ 6 0
50 [NKN2005] N160-Y3 Cl* 05 39 58.9 -69 36 30           ~ 2 0
51 NGC 2083 Cl* 05 39 59 -69 44.1     10.83     ~ 16 0
52 [NKN2005] N160-O3 Cl* 05 39 59.1 -69 37 41           ~ 2 0
53 [NKN2005] N159S Star 2 * 05 39 59.4 -69 50 27           ~ 1 0
54 [NKN2005] N159S Star 3 * 05 40 00.2 -69 50 27           ~ 1 0
55 2MASS J05400074-6947129 Y*O 05 40 00.741 -69 47 12.91 14.808 15.690 15.072   14.336 ~ 32 0
56 [NKN2005] N159S Star 4 * 05 40 00.8 -69 50 08           ~ 1 0
57 [NKN2005] N160-O4 Cl* 05 40 00.8 -69 40 51           ~ 4 0
58 H88 305 Cl* 05 40 01 -69 36.2           ~ 7 0
59 [NKN2005] N159S Star 5 * 05 40 02.1 -69 50 02           ~ 1 0
60 LHA 120-N 159L HII 05 40 03.4 -69 49 14           ~ 12 0
61 LHA 120-N 159S MoC 05 40 03.750 -69 51 01.62           ~ 43 0
62 [NKN2005] N159-Y4 Cl* 05 40 04.4 -69 45 08           ~ 4 1
63 BSDL 2741 ISM 05 40 05 -69 38.4           ~ 4 0
64 [NKN2005] N159S Star 6 * 05 40 05.3 -69 50 13           ~ 1 0
65 [NKN2005] N159-O3 Cl* 05 40 05.4 -69 45 40           ~ 2 0
66 MACHO 76.9728.2933 * 05 40 05.4078687744 -69 44 44.185688916     16.93 16.07   ~ 18 0
67 [NKN2005] N160-O5 Cl* 05 40 07.4 -69 39 06           ~ 3 0
68 LHA 120-N 160S EmO 05 40 08 -69 38.0           ~ 1 0
69 NGC 2085 Cl* 05 40 08.6 -69 40 20     12.06     ~ 20 0
70 [BJI2000] N160 III Rad 05 40 09.0 -69 40 23           ~ 2 0
71 LHA 120-N 159E MoC 05 40 10.980 -69 44 35.84           ~ 58 0
72 BSDL 2749 ISM 05 40 12 -69 34.8           ~ 4 0
73 LHA 120-N 172 HII 05 40 12.3 -69 55 01           ~ 13 0
74 [NKN2005] N159S-Y1 Cl* 05 40 13.4 -69 49 57           ~ 2 0
75 BSDL 2751 Cl* 05 40 15 -69 36.9           ~ 5 0
76 NGC 2084 Cl* 05 40 17 -69 45.4           ~ 6 0
77 [NKN2005] N160-O6 Cl* 05 40 17.6 -69 36 58           ~ 2 0
78 BSDL 2753 Cl* 05 40 18 -69 37.1           ~ 5 0
79 BSDL 2755 ISM 05 40 19 -69 46.4           ~ 4 0
80 DEM L 283c HII 05 40 19 -69 45.1           ~ 6 0
81 [BJI2000] N160 II Rad 05 40 21.2 -69 40 17           ~ 2 0
82 BSDL 2757 Cl* 05 40 22 -69 36.7           ~ 5 0
83 LHA 120-N 173 HII 05 40 22.9 -69 53 16           ~ 14 0
84 NGC 2086 Cl* 05 40 23.9 -69 40 17     12.00     ~ 27 1
85 BSDL 2760 As* 05 40 25 -69 46.8           ~ 3 0
86 DEM L 279 HII 05 40 26.9 -69 50 24           ~ 10 0
87 BSDL 2763 As* 05 40 32 -69 48.7           ~ 3 0
88 BSDL 2769 As* 05 40 34 -69 46.2           ~ 3 0
89 [NKN2005] N160-O7 Cl* 05 40 40.7 -69 36 42           ~ 2 0
90 BSDL 2777 ISM 05 40 48 -69 47.1           ~ 3 0
91 BSDL 2780 ISM 05 40 49 -69 46.0           ~ 3 0
92 [NKN2005] N160-O8 OpC 05 40 50.2 -69 33 05           ~ 12 0
93 DEM L 283 HII 05 40 50.8 -69 46 08           ~ 8 0
94 LHA 120-N 160N EmO 05 40 52 -69 34.0           ~ 1 0
95 DEM L 283e HII 05 41 02 -69 48.4           ~ 4 0
96 BSDL 2798 As* 05 41 09 -69 30.2           ~ 3 0
97 BSDL 2805 ISM 05 41 14 -69 34.0           ~ 4 0
98 [NKN2005] N160-O9 Cl* 05 41 26.9 -69 30 00           ~ 2 0
99 NAME LMC 2 Supergiant Shell sh 05 41 27 -69 22.4           ~ 191 0
100 DEM L 285 HII 05 41 28.4 -69 46 36           ~ 6 0
101 BSDL 2820 As* 05 41 30 -69 29.5           ~ 3 0
102 KMHK 1240 As* 05 41 33.1 -69 40 01           ~ 9 0
103 LP 605-23 Er* 08 32 30.4836775707 -01 34 38.551452575   20.2 18.44     M6Ve 40 0
104 LP 732-94 LM* 11 21 49.1708652037 -13 13 08.693807585     19.57     M8.5V 131 0
105 [JHR80] D-8 * 12 31 13.4 -63 40 21           ~ 4 0
106 [JHR80] D-9 * 12 31 16.7 -63 40 11           ~ 5 0
107 [JHR80] D-34 * 12 31 23.6 -63 46 45           ~ 5 0
108 [JHR80] D-12 * 12 31 30.0 -63 42 41           M3 6 0
109 [JHR80] D-37 * 12 31 30.1 -63 47 12           ~ 4 0
110 [JHR80] D-16 * 12 31 57.8 -63 42 22           M3 4 0
111 [JHR80] D-21 * 12 32 11.0 -63 43 17           ~ 5 0
112 TVLM 868-53850 LM* 15 00 26.3328610488 -00 39 27.926553456       15.9 13.8 M7V 21 0
113 TVLM 868-110639 LM* 15 10 16.8245051187 -02 41 08.085982519     20.505 18.035 15.664 M9V 58 0

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