2014A&A...565A..27H


Query : 2014A&A...565A..27H

2014A&A...565A..27H - Astronomy and Astrophysics, volume 565A, 27-27 (2014/5-1)

The Wolf-Rayet stars in the Large Magellanic Cloud. A comprehensive analysis of the WN class.

HAINICH R., RUEHLING U., TODT H., OSKINOVA L.M., LIERMANN A., GRAEFENER G., FOELLMI C., SCHNURR O. and HAMANN W.-R.

Abstract (from CDS):

Massive stars, although being important building blocks of galaxies, are still not fully understood. This especially holds true for Wolf-Rayet (WR) stars with their strong mass loss, whose spectral analysis requires adequate model atmospheres. Following our comprehensive studies of the WR stars in the Milky Way, we now present spectroscopic analyses of almost all known WN stars in the LMC. For the quantitative analysis of the wind-dominated emission-line spectra, we employ the Potsdam Wolf-Rayet (PoWR) model atmosphere code. By fitting synthetic spectra to the observed spectral energy distribution and the available spectra (ultraviolet and optical), we obtain the physical properties of 107 stars. We present the fundamental stellar and wind parameters for an almost complete sample of WN stars in the LMC. Among those stars that are putatively single, two different groups can be clearly distinguished. While 12% of our sample are more luminous than 106L and contain a significant amount of hydrogen, 88% of the WN stars, with little or no hydrogen, populate the luminosity range between log(L/L)=5.3...5.8. While the few extremely luminous stars (log(L/L)>6), if indeed single stars, descended directly from the main sequence at very high initial masses, the bulk of WN stars have gone through the red-supergiant phase. According to their luminosities in the range of log(L/L)=5.3...5.8, these stars originate from initial masses between 20 and 40M. This mass range is similar to the one found in the Galaxy, i.e. the expected metallicity dependence of the evolution is not seen. Current stellar evolution tracks, even when accounting for rotationally induced mixing, still partly fail to reproduce the observed ranges of luminosities and initial masses. Moreover, stellar radii are generally larger and effective temperatures correspondingly lower than predicted from stellar evolution models, probably due to subphotospheric inflation.

Abstract Copyright:

Journal keyword(s): stars: Wolf-Rayet - Magellanic Clouds - stars: early-type - stars: atmospheres - stars: winds, outflows - stars: mass-loss

VizieR on-line data: <Available at CDS (J/A+A/565/A27): table2.dat tablea3.dat>

Simbad objects: 125

goto Full paper

goto View the references in ADS

Number of rows : 125
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 10268 1
2 HD 6327 WR* 01 05 23.0143603 +60 25 18.965197   11.49 11.33     WN2-w 115 0
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6328 1
4 Brey 1 WR* 04 45 32.2724972352 -70 15 10.892770740 15.001 15.711 15.92 15.75 15.643 WN3b 36 0
5 Brey 2 WR* 04 49 36.2527075920 -69 20 54.744608760 15.633 16.495 16.579   16.447 WN2b(h) 34 0
6 Brey 3 WR* 04 52 57.3970420344 -66 41 13.495924752 13.793 14.531 14.640   14.527 WN4b 38 0
7 Brey 4 WR* 04 54 28.0891890576 -69 12 50.797294596 15.957 16.715 16.742   16.363 WN2b 28 0
8 SK -67 18 WR* 04 55 14.9246934528 -67 11 23.535862980 10.990 11.803 11.95   12.072 O6-7n-nn+WN5-6-A 55 0
9 HD 32109 WR* 04 55 31.3415815464 -67 30 02.683346940 12.893 13.46 13.81 13.95 13.512 WN4b 70 0
10 Brey 10a WR* 04 57 27.4544617632 -67 39 02.864000880 12.213 13.314 13.496   13.564 O2If*/WN5 54 1
11 LHA 120-S 9 WR* 04 57 41.0338477008 -66 32 42.553604940 12.191 12.91 12.82 12.91 11.781 WN10 50 0
12 HD 268856 WR* 04 58 56.3625896976 -68 48 04.732033356   12.130 10.827 10.34 9.33 WN4o(+OB) 42 0
13 HD 268847 WR* 04 59 51.5602106760 -67 56 55.438699560 13.658 14.21 14.58 14.75 14.426 WN4b 51 0
14 HD 33133 WR* 05 03 08.9126630616 -66 40 57.492259824   12.46 12.63 12.85   WN7h 89 0
15 HD 269015 WR* 05 04 12.3240087744 -70 03 55.402898508 13.183 14.07 14.28 14.40 14.108 WN4o 44 0
16 Brey 15 WR* 05 05 08.4203978904 -70 22 45.122129688 13.572 14.47 14.62 14.81 14.714 WN3(h) 36 0
17 HD 34169 WR* 05 09 40.4196726384 -68 53 24.752391396 12.773 13.47 13.65 14.02 13.697 WN4b+O5: 62 1
18 HD 34632 WR* 05 13 43.7713381440 -67 22 29.382994920 12.144 13.002 13.07 13.41 13.271 WN4+OB 29 0
19 HD 269227 WR* 05 13 54.2756276088 -69 31 46.665067440 11.429 11.98 11.918 12.13 10.557 WN9/10+M2Ia 156 0
20 BAT99 23 WR* 05 13 56.0309726688 -67 24 36.498713292   17.29 16.98     WN3(h) 12 0
21 HD 34783 WR* 05 14 12.7026762984 -69 19 26.110131672 13.668 14.115 14.49 14.55 14.150 WN4b 42 0
22 Brey 19a WR* 05 14 57.2842242120 -71 36 18.312615000   14.87 15.10 15.49   WN4ha 19 0
23 Brey 20 WR* 05 16 38.8431915960 -69 16 40.826569980 13.791 14.345 14.48 15.05 14.336 WN4b 36 0
24 HD 269333 WR* 05 18 19.2104631720 -69 11 40.657335684 10.375 11.23 11.29 11.47 11.412 WN+BI 57 0
25 Brey 23 WR* 05 20 44.7306962712 -65 28 20.441024040 13.774 14.43 14.65 14.87 14.534 WN4b+OB 37 0
26 LHA 120-S 28 WR* 05 21 57.6946827024 -65 49 00.222663684 12.395 13.12 13.32 13.62 13.295 WN6h 43 0
27 Brey 25 WR* 05 22 04.4095895424 -67 59 06.777660876 14.589 15.326 15.207   14.993 WN4b 36 0
28 HD 36063 WR* 05 22 22.5295596384 -71 35 58.154210736 11.583 12.43 12.66 12.85 12.602 WN7 67 0
29 HD 269445 WR* 05 22 59.7855849168 -68 01 46.635948408 10.79 11.77 11.520 11.41 10.979 Ofpe/WN9 116 0
30 Brey 27 WR* 05 23 18.0136346784 -65 56 56.944850280 13.870 14.624 14.876   14.929 WN3(h) 35 0
31 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16076 1
32 HD 269485 WR* 05 24 24.1935093984 -68 31 35.592471948 13.593 14.40 14.46 14.39 14.574 WN4b/WCE+OB 55 0
33 Brey 30 WR* 05 24 54.3452003016 -66 14 11.166920160 16.080 16.545 16.328   15.915 WN3o 18 0
34 Brey 33 WR* 05 26 36.8640 -68 50 59.640   14.591 14.77     WN4(h)a 29 0
35 HD 269549 WR* 05 26 42.5908088736 -69 06 57.344865912 14.308 14.53 14.76 15.11 14.589 WN4b 43 0
36 LH 58 As* 05 26 45 -68 49.9   7.97 7.96     ~ 58 0
37 HD 269546 WR* 05 26 45.3202797576 -68 49 52.787839260 9.00 9.83 9.86 9.76 9.76 WN5b(h)+B3I 103 0
38 Brey 37 WR* 05 27 37.6898837256 -70 36 05.324162832 12.875 13.85 14.07 14.43 14.249 WN4o+OB 38 0
39 LHA 120-S 108 WR* 05 27 42.6930652824 -69 10 00.379546536 12.243 13.232 13.41 13.67 13.287 WN8ha 40 0
40 HD 269582 WR* 05 27 52.6621673400 -68 59 08.488879836 12.206 10.818 11.093 12.70 11.234 WN10h 100 0
41 Brey 38 WR* 05 28 17.9135754480 -69 02 35.894733612   15.22 15.26     WN4o 30 0
42 HD 269618 WR* 05 29 12.3651158016 -68 45 36.147697236 14.391 15.104 15.295 15.32 15.222 WN3b 29 0
43 HD 269624 WR* 05 29 31.6376299080 -68 54 28.817207028 14.008 14.491 14.781 14.81 14.703 WN4b 43 1
44 Brey 40a WR* 05 29 33.2070992328 -70 59 34.838770092 12.472 13.20 13.39 13.90 13.743 WN4:b+O8V 40 0
45 Brey 41 WR* 05 29 53.6514294768 -69 01 04.805719284   13.740 13.70     WN5h 17 0
46 Brey 42 WR* 05 30 02.4527669472 -68 45 18.387861660 14.146 14.939 15.201   15.213 WN3b 30 0
47 Brey 44a WR* 05 31 18.0558143832 -69 08 45.425541264   14.55 14.26 14.26   WN8ha 23 0
48 HD 269687 WR* 05 31 25.5247745448 -69 05 38.556251700 10.86 11.78 11.87 12.05   WN11h 104 0
49 HD 269692 WR* 05 31 32.8704053376 -67 40 46.605246924 13.592 14.28 14.49 14.70 14.519 WN4b 44 0
50 Brey 45 WR* 05 31 34.3667195064 -67 16 29.329573872 14.146 14.696 14.897 15.02 14.835 WN4b 30 0
51 Brey 47 WR* 05 32 07.4960150664 -68 26 31.570497852 14.772 15.35 14.97 15.02 14.373 WN7h 32 0
52 HD 269748 WR* 05 33 10.5705227928 -67 42 43.053720228 12.093 13.054 13.186   12.828 WN4b+O8: 48 0
53 Brey 49 WR* 05 33 10.8684124200 -69 29 01.010415480 13.435 14.227 14.42   14.512 WN4(h)a 22 0
54 CPD-69 394 WR* 05 34 36.0879084840 -69 45 36.503591616 11.428 12.10 12.131 12.41 12.136 B0I+WN 17 0
55 Brey 51 WR* 05 34 37.4804641440 -66 14 37.993247196 14.196 15.041 15.312   15.273 WN3(h) 21 0
56 Brey 52 WR* 05 34 52.0245405048 -67 21 28.974967020 13.624 14.451 14.597 14.84 14.719 WN4ha: 41 0
57 HD 269784 WR* 05 34 59.3904949944 -69 44 06.296661528 13.347 14.081 14.073   14.321 WN4o+O9: 31 0
58 Brey 55 WR* 05 35 15.18 -69 05 43.1 15.612 15.542 15.389     WN4o 20 0
59 Brey 54 WR* 05 35 29.7912404064 -67 06 49.401360900 14.351 15.082 15.360   15.427 WN3(h) 21 0
60 Brey 56 WR* 05 35 42.1981380456 -69 12 34.589718936 12.969 13.708 13.587   13.325 WN5ha 34 1
61 Brey 58 WR* 05 35 42.2160 -69 11 54.240   14.62 14.13     O3If*/WN6 37 0
62 Brey 60 WR* 05 35 44.279 -68 59 36.79 14.527 15.068 14.782 14.87 14.473 WN4+O8: 24 0
63 Brey 61 WR* 05 35 45.0258911688 -68 58 44.532708744 14.632 15.532 15.376   15.533 WN4h+O3: 23 0
64 Brey 63 WR* 05 35 50.6531355552 -68 53 39.203213352 13.730 14.578 14.59   14.841 WN5ha 19 0
65 Brey 63a WR* 05 35 52.4536264824 -68 55 08.629812120 14.703 15.438 15.584   15.670 WN3(h)a 16 0
66 HD 269848 WR* 05 35 54.0299886024 -67 02 48.969864816 13.694 14.06 14.34 14.65 14.440 WN4o 33 0
67 LHA 120-S 125 WR* 05 35 54.3748881672 -68 59 07.890914940 12.463 13.324 13.266 13.33 12.609 WN9ha 69 0
68 BAT99 77 WR* 05 35 58.889 -69 11 47.88           WN7 68 0
69 BAT99 78 WR* 05 35 59.085 -69 11 51.12   13.07 12.94     WN6(+O8V) 22 0
70 Brey 57 WR* 05 35 59.8168837680 -69 11 22.217610696 13.143 13.784 13.486   12.060 WN7ha+OB 32 0
71 BAT99 80 WR* 05 35 59.913 -69 11 50.70     13.0     O4If+OB 20 0
72 Brey 65a WR* 05 36 12.1333328856 -67 34 57.776239560 14.609 15.504 15.394   15.173 WN5h 16 0
73 Brey 66 WR* 05 36 33.6047711064 -69 09 17.324592156 15.636 15.937 16.108   15.627 WN3b 29 0
74 HD 269858 s*b 05 36 43.6936418088 -69 29 47.451149232   10.24 10.15 9.95 9.05 LBV 277 2
75 Brey 69 WR* 05 37 11.4810561480 -69 07 38.183877948 15.959 16.427 16.301   15.936 WN3o 23 0
76 Brey 70a WR* 05 37 35.7045940032 -69 08 40.251941520 17.387 17.957 16.924   16.324 WN4b/WCE 27 0
77 HD 269883 WR* 05 37 40.4906298216 -69 07 57.672227892 13.454 14.184 14.077 14.03 13.492 WN7h 42 0
78 Brey 73 WR* 05 37 46.3440 -69 09 09.360   12.222 12.11     WN6(h) 34 1
79 HD 269891 WR* 05 37 49.0343945856 -69 05 08.218283928 11.791 9.447 11.39 11.55   WN6+B1Ia 67 0
80 Brey 74a WR* 05 37 51.3386549880 -69 09 46.690186716 12.483 13.474 13.446 13.62 13.278 O3If* 33 0
81 NAME 30 Dor Region reg 05 38.0 -69 06           ~ 201 0
82 HD 269908 WR* 05 38 27.7009045560 -69 29 58.546136796 14.243 14.40 14.29 14.59 14.230 WN4b 41 0
83 RMC 135 WR* 05 38 33.6193296576 -69 04 50.510501688   12.63 13.48     WN7h+OB 56 0
84 Brey 81 WR* 05 38 36.4071127800 -69 06 57.534295248   14.02 13.76   12.80 WN8 30 0
85 BAT99 97 WR* 05 38 38.8401788208 -69 06 49.549699584   14.23 13.74   13.20 O3.5If*/WN7 26 0
86 Brey 79 WR* 05 38 39.1442162640 -69 06 21.297619692     13.5 13.33   WN6 31 0
87 Brey 78 WR* 05 38 40.2960 -69 05 59.640           O2.5If*/WN6 36 0
88 Brey 75 WR* 05 38 40.53 -69 05 57.2   12.84 12.75   12.34 WN6h 60 0
89 RMC 140b WR* 05 38 41.5650 -69 05 15.500   12.61 12.66   12.54 WN6 27 0
90 RMC 140a WR* 05 38 41.600 -69 05 13.39   12.18 12.12   12.40 WN4+WC5 32 0
91 RMC 140 WR* 05 38 41.62 -69 05 14.0   11.213 11.616     WN7+WC4/5pec 78 0
92 Brey 76 WR* 05 38 41.8800 -69 06 13.680     12.5     O2If*/WN5 30 1
93 Brey 77 WR* 05 38 42.1044150840 -69 05 55.335965424     12.86   12.79 O2If* 74 0
94 BAT99 106 WR* 05 38 42.291 -69 06 03.45   12.83 12.93     WN5h 56 0
95 RMC 139 WR* 05 38 42.3537501576 -69 04 58.196699796   12.04 11.94     O6.5Iafc+O6Iaf 88 0
96 RMC 136 Cl* 05 38 42.396 -69 06 03.36           ~ 1862 1
97 BAT99 108 WR* 05 38 42.43 -69 06 02.2   12.78 12.77     WN5h 71 0
98 BAT99 109 WR* 05 38 42.45 -69 06 02.2   13.09 13.38     WN5h 42 0
99 BAT99 110 WR* 05 38 42.47 -69 06 02.0   13.73 13.73     O2If* 37 0
100 BAT99 111 WR* 05 38 42.765 -69 06 03.36   13.51 13.66     WN9ha 42 0
101 BAT99 112 WR* 05 38 42.9162 -69 06 04.938   12.95 12.86     WN5h 55 0
102 BAT99 113 WR* 05 38 43.12 -69 05 46.8   13.56 13.47   13.44 O2If*/WN5 39 0
103 BAT99 114 WR* 05 38 43.20 -69 06 14.6   13.52 13.40   13.31 O2If*/WN5 34 0
104 Brey 84 HXB 05 38 44.2508644296 -69 06 06.004573020     13.10   12.70 WN5h:a 58 0
105 HD 269926 WR* 05 38 47.5179121824 -69 00 25.287752196 11.953 12.974 13.116 13.16 12.926 WN4+OB 65 0
106 HD 38282 WR* 05 38 53.3783458680 -69 02 00.895545204   10.98 11.11 11.26   WN5/6h+WN6/7h 156 1
107 HD 269928 WR* 05 38 57.0667692816 -69 06 05.660419140   12.02 11.94 12.00 11.58 WN6/7 124 0
108 W61 3-8 WR* 05 38 58.0963884840 -69 29 19.558532292       12.51 12.43 WN9h 50 0
109 HD 38344 WR* 05 39 11.3190030600 -69 02 01.571056044 12.323 13.04 12.993 13.07 12.574 WN5h 68 0
110 NGC 2077 Cl* 05 39 34.5 -69 39 19   11.71 11.71     ~ 41 1
111 Brey 93a WR* 05 39 36.1929497064 -69 39 11.174764248           WN4 16 0
112 HD 269956 WR* 05 40 07.5344560704 -69 24 31.913547048 12.043 13.014 13.166 13.51 13.205 WN2.5-3+B1V+O4V+O6.5V 46 0
113 Brey 96 WR* 05 40 50.7849505008 -69 26 31.687448928 14.965 15.549 15.718   15.494 WN3b 21 0
114 Brey 97 WR* 05 41 48.5696784312 -70 35 30.785347248 13.570 14.522 14.701 14.50 14.834 MN3ha+O5V 26 1
115 LHA 120-S 142 WR* 05 44 31.0203138528 -69 20 15.441467316 11.946 12.85 12.71 12.80 12.260 WN11h 29 0
116 Brey 98 WR* 05 44 53.7279459672 -67 10 36.132882708       14.57 14.45 WN3/5 29 1
117 Brey 99 WR* 05 45 24.1680967944 -67 05 56.733951696 14.221 14.69 14.81 14.88 14.371 WN4b(h) 35 0
118 LHA 120-S 61 WR* 05 45 51.9388258704 -67 14 25.937264544 10.870 11.86 11.95 12.09 11.931 WN11h 80 0
119 HD 270149 WR* 05 46 46.3470746448 -67 09 58.269315024 14.025 14.20 14.48 14.76 14.524 WN4b 51 0
120 HD 93162 WR* 10 44 10.3890266112 -59 43 11.106500520 7.90 8.55 8.80 8.66   O2.5If*/WN6+OB 348 1
121 HD 96548 WR* 11 06 17.2032351624 -65 30 35.241182028 7.10 7.80 7.70 8.49   WN8h 403 0
122 iPTF 13bvn SN* 15 00 00.152 +01 52 53.17           SNIb 137 0
123 WR 102ka WR* 17 46 18.12 -29 01 36.6           WN10 30 0
124 HD 165763 WR* 18 08 28.4692108104 -21 15 11.183076540 7.16 7.54 7.82 8.55   WC6 276 0
125 V* V1521 Cyg HXB 20 32 25.78 +40 57 27.9           WN4/5-6/7 1867 2

To bookmark this query, right click on this link: simbad:objects in 2014A&A...565A..27H and select 'bookmark this link' or equivalent in the popup menu


2022.07.07-15:06:27

© Université de Strasbourg/CNRS

    • Contact