2008MNRAS.389.1033D

Query : 2008MNRAS.389.1033D

2008MNRAS.389.1033D - Mon. Not. R. Astron. Soc., 389, 1033-1040 (2008/September-3)

Wolf-Rayet stars in M33 - II. Optical spectroscopy of emission-line stars in giant HII regions.

DRISSEN L., CROWTHER P.A., UBEDA L. and MARTIN P.

Abstract (from CDS):

We present optical spectra of 14 emission-line stars in M33's giant Hii regions NGC 592,595 and 604: five of them are known Wolf-Rayet (WR) stars, for which we present a better quality spectrogram, eight are WR candidates based on narrow-band imagery and one is a serendipitous discovery. Spectroscopy confirms the power of interference filter imagery to detect emission-line stars down to an equivalent width of about 5 Å in crowded fields. We have also used archival Hubble Space Telescope (HST)/WFPC2 (Wide Field and Planetary Camera 2) images to correctly identify emission-line stars in NGC 592 and 588.

Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): stars: Wolf-Rayet - galaxies: individual: M33 - Local Group

Nomenclature: Table 2: DMS NGC 604 NN (No. 13) added.

Simbad objects: 42

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Number of rows : 42
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 NGC 588 HII 01 32 45.2 +30 38 54 14.59 14.40 14.44 14.89 15.16 ~ 126 1
2 [HS80] B7 s*b 01 32 45.3729299808 +30 38 58.247750688 16.377 17.479 17.612 17.618 17.603 Ofpe 16 0
3 [HS80] B10 WR* 01 32 45.77 +30 38 55.4 16.798 17.811 17.958 18.064 18.162 WN2+O7 11 0
4 LGGS J013310.82+303900.2 WR* 01 33 10.82 +30 39 00.2   22.405 22.764 22.026 21.603 WN 8 0
5 [HS80] B67 sg* 01 33 11.88 +30 38 53.7 15.979 16.858 16.812 16.748 16.645 WNL 13 0
6 VGHC 2-22 HII 01 33 12.188 +30 38 47.14           ~ 81 0
7 DMS NGC 592 2 WR* 01 33 12.4142613758 +30 38 47.979563167   19.7 19.22     WN3 5 0
8 [NM2011] J013315.02+303906.9 WR* 01 33 15.02 +30 39 06.9 19.018 19.433 19.784 19.663 19.647 WC5-6 10 0
9 [AM85] M 33 2 WR* 01 33 32.5988011248 +30 41 27.144125628 18.083 18.925 18.985 18.830 18.720 WNL/LBV 20 0
10 DMS NGC 595 5 WR* 01 33 32.91 +30 41 46.1 17.15 17.97 18.30     WN7h 7 0
11 DMS NGC 595 4 WR* 01 33 33.04 +30 41 36.1 17.26 18.15 18.24     WN 7 0
12 DMS NGC 595 3 WR* 01 33 33.32 +30 41 29.7 19.86 20.45 20.55     WC6 6 0
13 NGC 595 HII 01 33 33.53 +30 41 29.8           ~ 213 0
14 DMS NGC 595 2b WR* 01 33 33.70 +30 41 34.2 17.34 18.11 18.08     ~ 5 0
15 DMS NGC 595 2a WR* 01 33 33.73 +30 41 33.9 19.16 19.71 19.49     ~ 5 0
16 DMS NGC 595 9 WR* 01 33 33.81 +30 41 29.6 18.785 20.48 19.03 18.832 18.596 WN7 7 0
17 DMS NGC 595 8 WR* 01 33 33.96 +30 41 17.3 19.63 20.24 19.93     WN 6 0
18 DMS NGC 595 1 WR* 01 33 34.13 +30 41 38.0 17.51 18.43 18.43     WN7 7 0
19 DMS NGC 595 7 WR* 01 33 34.18 +30 41 30.5 19.68 20.22 19.85     WN 6 0
20 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
21 NGC 604 HII 01 34 32.1 +30 47 01           ~ 608 0
22 [FBB2012] 4096 WR* 01 34 32.11 +30 47 05.8   18.5 18.16     WN6 7 0
23 [FBB2012] 1244 WR* 01 34 32.24 +30 47 02.7     17.27     Of/WNL 5 0
24 [FBB2012] 3791 WR* 01 34 32.45 +30 46 59.1 15.133 16.263 16.435 16.500 16.678 WCE 16 0
25 [FBB2012] 4075 WR* 01 34 32.50 +30 47 03.5   18.1 17.86     WN10 7 0
26 DMS NGC 604 2 WR* 01 34 32.50 +30 47 00.3   16.29 16.29     WN 5 0
27 [BMS2003] 690B WR* 01 34 32.55 +30 47 04.4           BOIb 5 0
28 DMS NGC 604 4 WR* 01 34 32.65 +30 47 07.1   16.12 15.97     WN 7 0
29 [NM2011] J013432.68+304655.4 s*b 01 34 32.68 +30 46 55.4   18.5       OIf 6 0
30 DMS NGC 604 3 WR* 01 34 32.69 +30 47 05.4   16.61 16.66     WN 8 0
31 [FBB2012] 1257 WR* 01 34 32.78 +30 47 03.5   19.0 19.13     WC6 6 0
32 [CM81] 13 WR* 01 34 33.62 +30 47 04.6 16.680 17.492 16.834 17.336 17.506 WN8 16 0
33 [NM2011] J013433.82+304656.3 WR* 01 34 33.82 +30 46 56.3   20.1 19.54     WC4 6 0
34 DMS NGC 604 11 WR* 01 34 34.07 +30 46 54.3   20.7 21.52     WNE 5 0
35 DMS NGC 604 13 WR* 01 34 35.15 +30 47 05.8           O6.5Iaf 3 0
36 LHA 120-S 9 WR* 04 57 41.0338477008 -66 32 42.553604940 12.191 12.91 12.82 12.91 11.781 WN10 58 0
37 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
38 HD 92740 WR* 10 41 17.5158425712 -59 40 36.895992960 5.68 6.50 6.42 7.38   WN7h+O9III-V 426 0
39 HD 93162 WR* 10 44 10.3890266112 -59 43 11.106500520 7.90 8.55 8.80 8.66   O2.5If*/WN6+OB 374 0
40 MR 39 WR* 11 16 57.8368404744 -59 26 23.893309392   13.04 12.79 12.71   WN4-w 55 0
41 HD 163758 s*b 17 59 28.3669369416 -36 01 15.589420824 6.46 7.35 7.32 8.38   O6.5Iafp 163 0
42 NAME Local Group GrG ~ ~           ~ 9325 0

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