2007ApJ...671.2028B

Query : 2007ApJ...671.2028B

2007ApJ...671.2028B - Astrophys. J., 671, 2028-2039 (2007/December-3)

VLT spectroscopy of blue supergiants in IC 1613.

BRESOLIN F., URBANEJA M.A., GIEREN W., PIETRZYNSKI G. and KUDRITZKI R.-P.

Abstract (from CDS):

We present multiobject spectroscopy of young, massive stars in the Local Group galaxy IC 1613. We provide the spectral classification and a detailed spectral catalog for 54 OBA stars in this galaxy. The majority of the photometrically selected sample is composed of B- and A-type supergiants. The remaining stars include early O-type dwarfs and the only Wolf-Rayet star known in this galaxy. Among the early B stars we have serendipitously uncovered six Be stars, the largest spectroscopically confirmed sample of this class of objects beyond the Magellanic Clouds. We measure chemical abundances for nine early B supergiants, and find a mean oxygen abundance of 12+log(O/H)=7.90±0.08. This value is consistent with the result we obtain for two H II regions in which we detect the temperature-sensitive [O III] λ4363 auroral line.

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Journal keyword(s): Galaxies: Abundances - Galaxies: Individual: Alphanumeric: IC 1613 - Galaxies: Stellar Content - Stars: Early-Type

Nomenclature: Table 1: [BUG2007] A NNa N=20+19+18.

Simbad objects: 67

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Number of rows : 67
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 Wolf-Lundmark-Melotte G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 691 2
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12648 1
3 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11148 1
4 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1503 2
5 [BUG2007] C 8 * 01 04 27.8335902456 +02 07 08.617193868     19.90   19.72 A3II 2 0
6 [BUG2007] C 2 * 01 04 28.0884439896 +02 10 23.255826744     19.58   19.41 A3II 2 0
7 [BUG2007] C 3 * 01 04 29.3633722656 +02 10 36.236784936     19.76   19.50 A3II 3 0
8 [BUG2007] C 4 * 01 04 29.8784930496 +02 09 50.721058800     20.14   20.22 B8II 2 0
9 [BUG2007] C 1 * 01 04 31.7809611504 +02 12 10.149016068   17.5 18.11 18.4 18.00 A2II 4 0
10 [BUG2007] C 6 s*b 01 04 32.4653055408 +02 09 32.271297732 17.76 18.70 18.83   18.90 B1Ia 4 0
11 [BUG2007] C 5 * 01 04 36.2489232336 +02 11 26.761685604 18.33 18.57 18.18   17.66 kA5hF: 3 0
12 [BUG2007] C 7 s*b 01 04 37.1178055344 +02 10 03.039602880     19.04   19.28 B1Ia 2 0
13 [BUG2007] C 9 * 01 04 38.6516480040 +02 09 43.467624756     19.02   19.29 O8III((f)) 5 0
14 [BUG2007] C 10 s*b 01 04 43.3818541752 +02 10 22.381992804     18.82   19.05 B1.5Ib 3 0
15 [BUG2007] B 11 s*b 01 04 43.8330093912 +02 06 45.160758216 17.51 18.55 18.68   18.84 O9.5 10 0
16 [SK76] D 51 * 01 04 44.0076199080 +02 07 32.036973528   16.45 15.69 15.22 14.71 G8 3 0
17 [MWF2015] 1013 * 01 04 46.7476546320 +02 09 58.255147764 17.045 17.05 16.39     G2 3 0
18 [SK76] D 22 * 01 04 47.1904885680 +02 07 53.104746720     18.54   18.16 A5Ib 4 0
19 [HLG90] 13 HII 01 04 48.0 +02 06 33           ~ 8 0
20 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1236 2
21 [SK76] D 31 * 01 04 48.6556451136 +02 07 42.215844000     19.50   19.51 B8Ib 3 0
22 [SK76] D 28 * 01 04 48.8980468200 +02 07 12.729243360   19.57 19.59     B5II 2 0
23 [SK76] E 33 * 01 04 48.9034357992 +02 05 58.523695224     18.81   18.64 A0II 4 0
24 [BUG2007] C 13 * 01 04 49.0137259872 +02 10 23.573180352   19.94 19.80     A:II 2 0
25 [SK76] E 46 s*b 01 04 49.9481479536 +02 07 03.638340012     18.94   18.95 B8Iab 4 0
26 [BUG2007] C 14 * 01 04 50.0871626808 +02 09 50.618043000     19.13   19.29 B2Ib 1 0
27 [BUG2007] B 18 * 01 04 50.1040014768 +02 03 50.082676308     19.78   19.69 B9II 2 0
28 [SK76] E 42 * 01 04 50.2764296688 +02 06 28.093804416     19.48   19.10 A5II 3 0
29 [BUG2007] B 19 Em* 01 04 51.5197814136 +02 03 43.874848764   19.95 19.94   19.93 Be 2 0
30 [SK76] F 33 * 01 04 52.8759914088 +02 05 49.106804136     18.55   18.11 A7/F0Ib 4 0
31 [BUG2007] C 17 * 01 04 53.7957035832 +02 09 15.868288584   19.38 19.27     A:II 2 0
32 [BUG2007] A 4 * 01 04 53.8550115192 +02 06 00.804599352     19.05   18.97 B9II 3 0
33 [SK76] A 23 * 01 04 54.2990744208 +02 06 02.061216144     18.98   19.06 B5Ib 3 0
34 [BUG2007] A 5 * 01 04 54.4375352640 +02 08 12.467037084 17.82 18.54 18.61   18.72 B3Ib 2 0
35 [BUG2007] C 19 HS? 01 04 54.6343834512 +02 08 29.909373756   18.67 18.89     ~ 2 0
36 [BUG2007] A 6 * 01 04 56.1908671320 +02 07 04.946218644     18.66   18.47 A3II 2 0
37 [BUG2007] B 9 * 01 04 56.4015468336 +02 07 16.543964280     19.72   19.54 A3II 2 0
38 [SK76] H 33 s*b 01 04 56.6977293936 +02 05 34.834108812     19.32   19.55 B0Iab 2 0
39 [SK76] H 8 s*b 01 04 57.6466046424 +02 04 44.134411980     18.80   18.94 B1.5Iab 4 0
40 [BUG2007] B 5 Em* 01 04 58.0132967280 +02 08 59.935876224     19.61   19.58 Be 3 0
41 [SK76] H 34 * 01 04 58.2921424320 +02 05 09.432837996     18.52   18.38 A0II 3 0
42 [SK76] A 43 sg* 01 04 59.1280874088 +02 09 15.079502628 15.83 16.50 16.38   16.28 A2Ia 5 0
43 [SK76] A 19 * 01 04 59.4976900704 +02 10 21.823630428   18.22 19.57     B9II 2 0
44 [BUG2007] B 4 s*b 01 04 59.5576794024 +02 09 16.208434296 17.17 18.14 18.27   18.47 B1.5Ia 6 0
45 [BUG2007] A 9 s*b 01 04 59.9854286880 +02 10 37.213056408     19.19   19.35 B5Iab 2 0
46 [SK76] A 22 s*b 01 05 00.9174417432 +02 10 41.597394132 16.44 17.32 17.46   17.61 B1Ia 7 0
47 [AM85] IC 1613 6 WR* 01 05 01.6177966440 +02 04 19.938198792     20.7     WO3 21 1
48 [SK76] J 46 Em* 01 05 01.7401253520 +02 06 19.476982656     19.03   18.90 Be 3 0
49 [BUG2007] B 7 s*b 01 05 01.9783776384 +02 08 05.159704848     18.99   19.28 O9I 6 0
50 [BUG2007] B 6 s*b 01 05 02.1903983760 +02 08 35.091558852     18.82   18.87 B1Ia 2 0
51 DDB IC 1613 1 SNR 01 05 02.70 +02 08 40.0           ~ 25 0
52 [BUG2007] B 2 * 01 05 03.0730469256 +02 10 04.644922044   19.75 19.68   20.02 O6III 4 0
53 [HLG90] 37 HII 01 05 03.3 +02 04 24           ~ 19 0
54 [BUG2007] A 11 s*b 01 05 03.4311881256 +02 09 45.727132212 17.54 18.09 18.08   18.01 B9Ia 7 0
55 [SK76] C 52 s*b 01 05 05.0275659000 +02 08 34.002863808     18.78   18.92 B1.5Iab 4 0
56 [HLG90] 45 HII 01 05 05.7 +02 09 48           ~ 6 0
57 [BUG2007] B 13 s*b 01 05 05.7180239016 +02 05 48.354241884 17.69 18.47 18.56   18.66 B5Iab 3 0
58 [BUG2007] A 13 * 01 05 06.2582828976 +02 10 43.265668440     19.02   19.26 O3/4V((f)) 11 0
59 [SK76] B 42 s*b 01 05 06.3353686536 +02 09 32.147473716 19.04 20.02 17.81   17.95 BOIa 4 0
60 [BUG2007] A 14 Em* 01 05 07.5642670632 +02 11 30.724166220     19.85   19.72 Be 1 0
61 [BUG2007] A 15 * 01 05 08.7811622736 +02 09 59.570342388     19.35   19.59 O9.5III 7 0
62 [BUG2007] A 16 s*b 01 05 10.1580185736 +02 12 29.566537848     18.90   19.08 BIb 4 0
63 [BUG2007] A 17 Em* 01 05 11.1911770416 +02 12 23.205773412     19.33   19.12 Be 3 0
64 [BUG2007] A 18 s*b 01 05 13.5349937736 +02 09 03.690236700     19.23   19.41 B1Iab 2 0
65 [BUG2007] A 19 Em* 01 05 15.1027265880 +02 10 43.215592080     20.19   20.05 Be 1 0
66 NGC 3109 AG? 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 769 2
67 NAME Local Group GrG ~ ~           ~ 8390 0

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