1997A&A...318..543C

Query : 1997A&A...318..543C

1997A&A...318..543C - Astronomy and Astrophysics, volume 318543-547 (1997/2-2)

B 517 - Another very late WNL star in M 33.

CROWTHER P.A., SZEIFERT T., STAHL O. and ZICKGRAF F.-J.

Abstract (from CDS):

We present intermediate dispersion optical spectroscopy of the M 33 star B517 (Humphreys & Sandage 1980ApJS...44..319H) obtained at the 3.5m Calar Alto and 4.2m William Herschel Telescopes. Our data reveal a spectral type of WN11h, closely resembling the Galactic LBV candidate He 3-519 (Smith et al. 1994A&A...281..833S). We find that B517 is the WNL star observed by Esteban et al. (1994AJ....107.1041E), named MC70 therein, and present a spectral analysis using the Hillier (1990A&A...231..116H) iterative scheme. We find that its stellar parameters (T*=27kK, log L/L☉=5.74, log {dot}(M)/M☉/yr=-4.3, v∞=275km/s) are similar to LMC WN11 stars (Crowther & Smith 1996, submitted), with a higher helium content (H/He∼0.8 by number), suggesting a post-LBV evolutionary status. Keywords: stars: Wolf-Rayet - galaxies: individual: M 33 - stars: individual: B517 (M 33) [HS80] B517 - galaxies: stellar content

Abstract Copyright: ∼

Journal keyword(s):

CDS comments: Var 2 and 83 in M33 = VHK 2, 83

Simbad objects: 20

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Number of rows : 20
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 BASW 19 s*b 00 43 33.0861943080 +41 12 10.311568308 16.363 17.338 17.325 17.172 17.257 LBV 79 0
2 [HS80] B5 WR* 01 32 37.72 +30 40 05.6 16.445 17.498 17.627 17.447 17.473 Ofpe/WN9 35 0
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
4 VHK 83 s*b 01 34 10.9079108155 +30 34 37.398838840 15.13 16.09 16.07 16.164 15.89 LBV 39 1
5 [HS80] B517 WR* 01 34 16.07 +30 36 42.1 16.80 17.89 17.95 17.86 17.83 Ofpe/WN9 21 0
6 LGGS J013416.28+303646.4 WR* 01 34 16.2585666312 +30 36 46.254377196 19.239 19.717 19.945 19.744 19.612 WC5 14 0
7 V* Y Tri s*b 01 34 18.3447976848 +30 38 36.805551324 17.065 18.1 18.22 18.099 18.010 Ofpe/WN9 40 0
8 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
9 HD 269006 s*b 05 02 07.3942092168 -71 20 13.116800076 9.93 10.60 10.55 10.43 10.38 LBV 261 0
10 HD 269227 WR* 05 13 54.2756276088 -69 31 46.665067440 11.429 11.98 11.918 12.13 10.557 WN9/10+M2Ia 167 0
11 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
12 HD 269582 WR* 05 27 52.6621673400 -68 59 08.488879836 12.206 10.818 11.093 12.70 11.234 WN10h 117 0
13 HD 269687 WR* 05 31 25.5247745448 -69 05 38.556251700 10.86 11.78 11.87 12.05   WN11h 122 0
14 HD 269858 s*b 05 36 43.6936418088 -69 29 47.451149232   10.24 10.15 9.95 9.05 LBV 296 2
15 LHA 120-S 142 WR* 05 44 31.0203138528 -69 20 15.441467316 11.946 12.85 12.71 12.80 12.260 WN11h 38 0
16 LHA 120-S 61 WR* 05 45 51.9388258704 -67 14 25.937264544 10.870 11.86 11.95 12.09 11.931 WN11h 100 0
17 WRAY 15-682 WR* 10 53 59.5777329720 -60 26 44.361095316   11.64 10.85 10.56   WN11h 155 3
18 V* AG Car WR* 10 56 11.5781414448 -60 27 12.810673260 7.00 7.57 6.96 7.73   WN11h 649 0
19 EM* AS 268 WR* 18 02 23.4574037952 -23 34 37.491692196   14.38 12.31 11.43   WN9h 106 0
20 * P Cyg s*b 20 17 47.2019733389 +38 01 58.549132671 4.66 5.24 4.82 4.28 4.02 B1-2Ia-0ep 1200 1

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