2006A&A...445..931M

Query : 2006A&A...445..931M

2006A&A...445..931M - Astronomy and Astrophysics, volume 445, 931-937 (2006/1-3)

A study of the B and Be star population in the field of the LMC open cluster NGC 2004 with VLT-FLAMES.

MARTAYAN C., HUBERT A.M., FLOQUET M., FABREGAT J., FREMAT Y., NEINER C., STEE P. and ZOREC J.

Abstract (from CDS):

Observations of hot stars belonging to the young cluster LMC-NGC 2004 and its surrounding region have been obtained with the VLT-GIRAFFE facilities in MEDUSA mode. 25 Be stars were discovered; the proportion of Be stars compared to B-type stars is found to be of the same order in the LMC and in the Galaxy fields. 23 hot stars were discovered as spectroscopic binaries (SB1 and SB2), 5 of these are found to be eclipsing systems from the MACHO database, with periods of a few days. About 75% of the spectra in our sample are polluted by hydrogen (Hα and Hγ), [SII] and [NII] nebular lines. These lines are typical of HII regions. They could be associated with patchy nebulosities with a bi-modal distribution in radial velocity, with higher values (+335km/s) preferentially seen inside the southern part of the known bubble LMC4 observed in HI at 21cm.

Abstract Copyright: ∼

Journal keyword(s): stars: early-type - stars: emission-line, Be - galaxies: Magellanic Clouds - stars: binaries: spectroscopic - stars: binaries: eclipsing - ISM: lines and bands

Nomenclature: Table 1: Cl* NGC 2004 MHFBE NNNNNN N=25 among (Nos 55075-155603). Table 2: Cl* NGC 2004 MHF NNNNNNa N=31 among (Nos 64847-149652).

Simbad objects: 105

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Number of rows : 105
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 Magellanic Clouds GrG 03 00 -71.0           ~ 7066 0
2 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17434 0
3 Cl* NGC 2004 MHFBE 118313 * 05 26 55.9662264336 -67 11 27.200991732   15.22 15.04     B1III 2 0
4 Cl* NGC 2004 MHF 113048 * 05 26 57.5486108712 -67 12 19.033144812   16.59 16.38     B2IV 2 0
5 OGLE LMC518.24.009514 SB* 05 27 14.4522807048 -67 12 41.042038068   15.96 15.863 16.19 15.94 ~ 6 0
6 AL 197 Em* 05 27 15.2326587168 -67 14 10.217443308   14.656 14.75 14.78   B1III 6 0
7 MACHO 60.7710.39 SB* 05 27 19.80 -67 09 34.5   16.27   16.39   ~ 2 0
8 Cl* NGC 2004 MHF 110467 * 05 27 25.31 -67 12 52.5   15.87 15.70     B1V 2 0
9 Cl* NGC 2004 MHFBE 110827 * 05 27 28.5970416912 -67 12 56.917315476   15.16 14.93     B1V 2 0
10 Cl* NGC 2004 MHF 64847 SB* 05 27 32.0603987472 -67 21 53.335761912   15.34 15.13     B1V 2 0
11 [BE74] 54 Em* 05 27 35.2524229512 -67 07 54.481133172   15.34 15.15 15.12   B1III 5 0
12 Cl* NGC 2004 MHFBE 55920 * 05 27 42.2724870576 -67 23 36.653633772   16.24 16.08     B1V 2 0
13 LHA 120-N 51A HII 05 27 57 -67 25.4           ~ 25 1
14 MACHO 60.7710.36 EB* 05 28 00.78 -67 06 55.4   16.32 16.29 16.36   B2V 3 0
15 Cl* NGC 2004 MHF 91603 * 05 28 03.4251858600 -67 16 33.355179840   15.43 15.19     B1IV 2 0
16 Cl* NGC 2004 MHFBE 116297 * 05 28 06.14 -67 11 47.5   16.30 16.14     B1V 2 0
17 Cl* NGC 2004 MHFBE 140012 * 05 28 13.2927491760 -67 07 20.868117852   15.12 14.94     B1.5III 2 0
18 Cl* NGC 2004 MHF 136274 SB* 05 28 13.38 -67 07 58.5           ~ 1 0
19 Cl* NGC 2004 MHF 142249 * 05 28 13.5191433456 -67 06 54.916789788   16.67 16.46     B2.5IV 2 0
20 Cl* NGC 2004 MHF 141834 * 05 28 17.0612851248 -67 06 54.658206648   16.54 16.38     B2IV 2 0
21 Cl* NGC 2004 MHF 144562 * 05 28 19.9373183184 -67 06 24.689369952   16.56 16.40     B3III 2 0
22 Cl* NGC 2004 MHF 65587 * 05 28 23.4706511208 -67 21 41.371549380   16.24 16.01     B1V 2 0
23 OGLE LMC518.23.006238 SB* 05 28 24.6983097792 -67 16 04.179492192     14.990   15.127 ~ 3 0
24 AL 211 Em* 05 28 27.5781858720 -67 11 28.599653832   14.348 14.50 14.61   B1III 7 0
25 Cl* NGC 2004 MHFBE 72704 * 05 28 29.4501398352 -67 20 20.222047536   15.05 14.86     B1.5III 2 0
26 OGLE LMC518.23.010131 EB* 05 28 31.9660765824 -67 13 12.011802888   16.20 15.724   15.855 B2IV 4 0
27 Cl* NGC 2004 MHFBE 108272 * 05 28 32.1373506360 -67 13 23.772740160   16.60 16.40     B2IV 2 0
28 Cl* NGC 2004 MHFBE 107877 * 05 28 34.260 -67 13 25.90   15.44 15.23     B2III 2 0
29 Cl* NGC 2004 MHFBE 107771 * 05 28 34.651 -67 13 23.97   16.76 16.39     B2.5III 2 0
30 KMHK 943 Cl* 05 28 34.860 -67 13 35.08     12.01     ~ 14 0
31 Cl* NGC 2004 MHF 135232 * 05 28 38.6836231848 -67 08 14.600462316   16.17 16.01     B1V 2 0
32 Cl* NGC 2004 MHF 71137 * 05 28 46.6606573776 -67 20 41.030710728   15.86 15.62     B1.5IV 2 0
33 AL 219 Em* 05 28 47.7631371816 -67 04 25.840922196   14.554 14.66 14.63   B1III 7 0
34 Cl* NGC 2004 MHF 136076 * 05 28 48.00 -67 08 03.1   16.71 16.44     B2V 2 0
35 Cl* NGC 2004 MHFBE 73013 * 05 28 56.0045997624 -67 20 14.637060672   16.35 16.16     B1V 2 0
36 OGLE LMC518.31.000082 EB* 05 28 58.6766535480 -67 05 29.344425000   16.34 16.317 16.60 16.51 B2IV 5 0
37 Cl* NGC 2004 MHFBE 137325 * 05 29 07.0102108152 -67 07 49.346021064   16.46 16.30     B5III 2 0
38 OGLE LMC518.22.021310 SB* 05 29 08.3442136872 -67 17 18.502077444   14.70 14.565 14.93 14.644 ~ 5 0
39 Cl* NGC 2004 MHF 79301 * 05 29 11.0582515872 -67 18 59.022266472 14.549 15.234 15.320   15.558 B2.5III 7 0
40 Cl* NGC 2004 MHFBE 77796 * 05 29 13.6153669584 -67 19 18.778748412   15.09 14.91     B1III 3 0
41 Cl* NGC 2004 MHFBE 66252 * 05 29 18.2101205520 -67 21 37.179206172   16.43 16.26     B1V 2 0
42 Cl* NGC 2004 MHF 134864 * 05 29 18.6023925216 -67 08 22.410031596   16.54 16.37     B2.5IV 2 0
43 Cl* NGC 2004 MHFBE 59721 * 05 29 25.6772364288 -67 23 02.551546896   16.64 16.46     B2V 2 0
44 Cl* NGC 2004 MHFBE 132205 * 05 29 25.872 -67 08 53.93   14.90 14.72     B1III 2 0
45 MACHO 60.8070.1685 SB* 05 29 33.98 -67 18 06.8           ~ 1 0
46 Cl* NGC 2004 MHF 142489 * 05 29 35.8857516768 -67 06 51.324288120   16.51 16.35     B9III 2 0
47 KMHK 963 OpC 05 29 36.100 -67 07 42.86           ~ 8 0
48 Cl* NGC 2004 MHF 131188 * 05 29 37.6748708256 -67 09 05.914490112   15.42 15.24     B0.5V 2 0
49 Cl* NGC 2004 MHF 142798 * 05 29 41.9453739936 -67 06 47.764834884   16.64 16.47     B2.5V 2 0
50 Cl* NGC 2004 MHFBE 85028 * 05 29 45.0120117096 -67 17 50.576964828   16.24 16.07     B1.5IV 2 0
51 Cl* NGC 2004 MHF 133975 * 05 29 50.61 -67 08 30.0   16.52 16.27     B2IV 2 0
52 Cl* NGC 2004 MHF 131570 * 05 29 51.8727524496 -67 08 57.492938976   16.57 16.41     B2.5V 2 0
53 Cl* NGC 2004 MHF 133049 * 05 29 52.6963393632 -67 08 42.810092736   16.31 16.10     B1.5V 2 0
54 Cl* NGC 2004 MHF 112849 SB* 05 29 54.8662360273 -67 12 41.155623963           ~ 1 0
55 Cl* NGC 2004 KWBBE 874 * 05 29 55.846 -67 19 14.26   17.72 17.56     B2V 3 0
56 KMHK 971 OpC 05 29 56.120 -67 18 25.77           ~ 10 0
57 OGLE LMC518.22.006580 EB* 05 29 56.2388237592 -67 14 33.038358504   16.07 16.025 16.26 16.011 B3IV 6 0
58 Cl* NGC 2004 MHF 137890 * 05 29 58.3758859896 -67 07 44.438823876   16.49 16.32     B1V 2 0
59 Cl* NGC 2004 KWBBE 276 * 05 29 59.3654669040 -67 14 46.646010024   16.01 15.79     B2III 4 0
60 AL 237 Em* 05 30 00.3392342016 -67 07 44.067874548   14.99 14.82 14.94   B1IV 6 0
61 Cl* NGC 2004 MHF 136846 * 05 30 03.6647093136 -67 07 59.023795584   16.36 16.19     B1V 2 0
62 Cl* NGC 2004 MHF 81906 SB* 05 30 04.67 -67 18 39.6           ~ 1 0
63 Cl* NGC 2004 MHFBE 132079 * 05 30 05.4982356456 -67 08 53.521946844   16.44 16.24     B1V 2 0
64 Cl* NGC 2004 MHF 144083 * 05 30 07.76 -67 06 34.8   16.46 16.27     B1V 2 0
65 Cl* NGC 2004 KWBBE 287 * 05 30 08.0707741848 -67 14 36.329078148   16.00 15.83     B2III 4 0
66 Cl* NGC 2004 MHF 103207 * 05 30 13.5647186880 -67 14 27.258951516 13.875 14.518 14.722   15.048 B2III 8 0
67 Cl* NGC 2004 MHF 134545 * 05 30 14.0173233984 -67 08 24.000268488   16.49 16.31     B2V 2 0
68 Cl* NGC 2004 MHFBE 55075 * 05 30 15.53 -67 23 54.8   16.27 16.01     B2IV 2 0
69 Cl* NGC 2004 KWBBE 993 * 05 30 18.6 -67 18 51   17.54 17.38     B2.5V 3 0
70 Cl* NGC 2004 MHF 144186 * 05 30 19.0872810312 -67 06 36.061979184   16.24 16.05     B1III 2 0
71 Cl* NGC 2004 MHF 139231 * 05 30 19.5958589352 -67 07 34.239976464   15.10 14.92     B0.5IV 2 0
72 Cl* NGC 2004 KWBBE 554 * 05 30 19.8 -67 17 05   17.04 16.74     B2.5V 5 0
73 OGLE LMC518.30.000025 EB* 05 30 21.1488025416 -67 07 17.848308108   16.40 15.084   15.239 B2IV 4 0
74 BSDL 2001 Cl* 05 30 22 -67 13.1           ~ 8 0
75 [BE74] 75 Em* 05 30 24.3956127600 -67 14 55.606551504   15.13 15.14 13.731   B2IIIe 8 0
76 Cl* NGC 2004 MHF 137534 * 05 30 25.6237749240 -67 07 50.728395504   16.36 16.17     B1V 2 0
77 Cl* NGC 2004 KWBBE 579 * 05 30 27.62 -67 13 00.4   16.68 16.53     B2III 4 0
78 Cl* NGC 2004 KWBBE 1055 * 05 30 29.265 -67 17 01.65   17.58 17.41     B2IV 5 0
79 Cl* NGC 2004 KWBBE 323 * 05 30 31.9854813744 -67 16 40.401897384   16.38 16.21     B1.5III 5 0
80 OGLE LMC518.30.000030 El* 05 30 32.4300529896 -67 06 32.471919036   14.84 14.785 15.04 14.935 B2III-IV 5 0
81 Cl* NGC 2004 MHF 98013 * 05 30 32.6599273440 -67 15 25.863950376 13.897 14.535 14.680   14.860 B2.5III 7 0
82 Cl* NGC 2004 MHFBE 101350 * 05 30 34.6547722728 -67 14 45.545452692 14.314 15.164 15.304   15.534 B1.5e 7 0
83 Cl* NGC 2004 MHFBE 119521 * 05 30 35.252 -67 11 19.10   16.47 16.30     B1III 2 0
84 Cl* NGC 2004 KWBBE 622 * 05 30 36.223 -67 13 27.70   17.14 16.89     B3III 4 0
85 Cl* NGC 2004 KWBBE 171 * 05 30 36.3357452256 -67 16 51.431228040   15.85 15.55     B2III 5 0
86 Cl* NGC 2004 KWBBE 624 * 05 30 37.0566056568 -67 21 02.672994744   16.92 16.73     B2III 5 0
87 Cl* NGC 2004 KWBBE 1108 * 05 30 37.238 -67 11 29.31   17.84 17.64     B2V 4 0
88 Cl* NGC 2004 MHF 144608 * 05 30 37.3509908088 -67 06 29.895366132   15.83 15.64     B1V 2 0
89 KMHK 988 Cl* 05 30 37.400 -67 11 08.90     12.10     ~ 11 0
90 AL 252 Em* 05 30 37.7449890888 -67 17 39.751375272   13.25 13.40 14.60   B1III 10 0
91 Cl* NGC 2004 MHF 128963 * 05 30 38.29 -67 09 32.7   16.20 15.95     B2.5V 2 0
92 Cl* NGC 2004 KWBBE 342 Be* 05 30 38.6492745528 -67 16 23.203814232   16.23 16.04     B1.5Vne 5 0
93 Cl* NGC 2004 KWBBE 344 * 05 30 38.8682727864 -67 14 21.249196584   16.07 15.89     B2IV 4 0
94 Cl* NGC 2004 KWBBE 177 * 05 30 39.582 -67 16 49.52   15.66 15.27     B0III 4 0
95 Cl* NGC 2004 KWBBE 347 * 05 30 39.81 -67 12 19.9   16.21 16.04     B2III 4 0
96 NGC 2004 Cl* 05 30 41.340 -67 17 21.83   9.6       ~ 275 0
97 Cl* NGC 2004 BBBC 451 * 05 30 44.3553288648 -67 17 22.962250356   14.77 14.44     B2III 6 0
98 Cl* NGC 2004 KWBBE 44 * 05 30 45.0737203272 -67 14 26.175695892   13.94 13.70     B2III 5 0
99 Cl* NGC 2004 KWBBE 1169 * 05 30 45.2 -67 17 19   17.95 16.62     B6III 3 0
100 Cl* NGC 2004 KWBBE 1175 * 05 30 46.960 -67 17 39.30   17.87 17.75     B2V 4 0
101 Cl* NGC 2004 KWBBE 374 * 05 30 47.799 -67 11 36.43   16.67 16.37     B2V 4 0
102 Cl* NGC 2004 KWBBE 203 * 05 30 48.703 -67 16 49.31   15.77 15.35     B1III 4 0
103 Cl* NGC 2004 KWBBE 1196 * 05 30 50.893 -67 18 08.51   17.72 17.56     B3IV 4 0
104 Cl* NGC 2004 ROB C16 * 05 30 53.4457774920 -67 17 10.472475804 14.003 14.713 14.880   15.012 B2III 9 0
105 NAME LMC 4 Supergiant Shell sh 05 31 33 -66 40.5           ~ 176 0

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