2020A&A...634A..79S


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.05CEST07:15:51

2020A&A...634A..79S - Astronomy and Astrophysics, volume 634A, 79-79 (2020/2-1)

Why binary interaction does not necessarily dominate the formation of Wolf-Rayet stars at low metallicity.

SHENAR T., GILKIS A., VINK J.S., SANA H. and SANDER A.A.C.

Abstract (from CDS):

Context. Classical Wolf-Rayet (WR) stars are massive, hydrogen-depleted, post main-sequence stars that exhibit emission-line dominated spectra. For a given metallicity Z, stars exceeding a certain initial mass MsingleWR(Z) can reach the WR phase through intrinsic mass-loss or eruptions (single-star channel). In principle, stars of lower masses can reach the WR phase via stripping through binary interactions (binary channel). Because winds become weaker at low Z, it is commonly assumed that the binary channel dominates the formation of WR stars in environments with low metallicity such as the Small and Large Magellanic Clouds (SMC, LMC). However, the reported WR binary fractions of 30-40% in the SMC (Z=0.002) and LMC (Z=0.006) are comparable to that of the Galaxy (Z=0.014), and no evidence for the dominance of the binary channel at low Z could be identified observationally. Here, we explain this apparent contradiction by considering the minimum initial mass MspecWR(Z) needed for the stripped product to appear as a WR star. Aims. By constraining MspecWR(Z) and MsingleWR(Z), we estimate the importance of binaries in forming WR stars as a function of Z. Methods. We calibrated MspecWR using the lowest-luminosity WR stars in the Magellanic Clouds and the Galaxy. A range of MsingleWR values were explored using various evolution codes. We estimated the additional contribution of the binary channel by considering the interval [MspecWR(Z), MsingleWR(Z)], which characterizes the initial-mass range in which the binary channel can form additional WR stars. Results. The WR-phenomenon ceases below luminosities of log L~=4.9, 5.25, and 5.6[L] in the Galaxy, the LMC, and the SMC, respectively, which translates to minimum He-star masses of 7.5, 11, 17M and minimum initial masses of MspecWR=18,23,37M. Stripped stars with lower initial masses in the respective galaxies would tend not to appear as WR stars. The minimum mass necessary for self-stripping, MsingleWR(Z), is strongly model-dependent, but it lies in the range 20-30, 30-60, and ≥40M for the Galaxy, LMC, and SMC, respectively. We find that that the additional contribution of the binary channel is a non-trivial and model-dependent function of Z that cannot be conclusively claimed to be monotonically increasing with decreasing Z.Conclusions. The WR spectral appearance arises from the presence of strong winds. Therefore, both MspecWR and MsingleWR increase with decreasing metallicity. Considering this, we show that one should not a-priori expect that binary interactions become increasingly important in forming WR stars at low Z, or that the WR binary fraction grows with decreasing Z.

Abstract Copyright: © ESO 2020

Journal keyword(s): stars: Wolf-Rayet - Magellanic Clouds - binaries: close - stars: evolution - stars: massive - binaries: spectroscopic

Simbad objects: 199

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Number of rows : 199

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 10902 1
2 HD 4004 WR* 00 43 28.3971235391 +64 45 35.383738645 10.28 10.718 10.138     WN4-s 179 0
3 SMC AB 1 WR* 00 43 42.3082179697 -73 28 55.260280231 14.33 15.20 15.24   15.21 WN3+O4: 29 0
4 SMC AB 10 WR* 00 45 28.9080513213 -73 04 45.623440187 14.69 15.81 15.55   15.96 WN3ha 19 0
5 SMC AB 2 WR* 00 48 30.8442971820 -73 15 45.831809104 13.23 14.23 14.43   14.52 WN4.5/O3 47 0
6 LIN 143 WR* 00 49 59.3503462072 -73 22 14.123185037 13.48 14.43 14.56   14.57 WN3/4+O4 36 0
7 LIN 160 WR* 00 50 43.43 -73 27 05.7 12.363 13.304 13.426   13.55 WN6 46 0
8 SMC AB 11 WR* 00 52 07.39 -72 35 38.6   15.593 15.816   16.011 WN4h:a 21 0
9 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9440 1
10 SMC AB 9 WR* 00 54 32.16 -72 44 35.6 14.31 15.26 15.43   15.69 WN3ha 26 0
11 HD 5980 WR* 00 59 26.5847969465 -72 09 53.927725716   11.13 11.31   11.029 WN4+O7I: 359 1
12 SMC AB 12 WR* 01 02 52.4009598642 -72 06 52.532173554   16 16.08     WN3ha 20 0
13 RMC 31 WR* 01 03 25.2276668802 -72 06 43.858552056   12.11 12.30     WN3:h+O5.5V+O5.5If+O7.5V 109 0
14 SMC AB 7 WR* 01 03 35.9234112413 -72 03 22.120394056 11.933 12.954 13.016   13.32 WN4+O6I(f) 45 0
15 HD 6327 WR* 01 05 23.0143603 +60 25 18.965197   11.49 11.33     WN2-w 107 0
16 M 33 GiG 01 33 50.904 +30 39 35.79 6.17 6.27 5.72     ~ 5134 1
17 HD 9974 WR* 01 38 55.6271504593 +58 09 22.671823428 9.85 10.71 10.69     WN3h-w 156 0
18 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5665 1
19 Brey 1 WR* 04 45 32.2722764850 -70 15 10.893009986 15.001 15.711 15.92 15.75 15.643 WN3b 35 0
20 Brey 2 WR* 04 49 36.2531142789 -69 20 54.747527445 15.633 16.495 16.579   16.447 WN2b(h) 32 0
21 Brey 3 WR* 04 52 57.3973799275 -66 41 13.495098750 13.793 14.531 14.640   14.527 WN4b 35 0
22 Brey 3a WR* 04 53 30.0804468134 -69 17 49.357837067 13.000 14.398 14.267 14.79 12.791 WC9 36 0
23 Brey 4 WR* 04 54 28.0893580594 -69 12 50.796987783 15.957 16.715 16.742   16.363 WN2b 27 0
24 SK -67 18 WR* 04 55 14.9238992344 -67 11 23.749108611 10.990 11.803 11.95   12.072 O6-7n-nn+WN5-6-A 55 0
25 HD 32109 WR* 04 55 31.3419672483 -67 30 02.683822100 12.893 13.46 13.81 13.95 13.512 WN4b 70 0
26 Brey 10a WR* 04 57 27.4549113851 -67 39 02.868479987 12.213 13.314 13.496   13.564 O2If*/WN5 52 1
27 LHA 120-S 9 WR* 04 57 41.0340462291 -66 32 42.554870210 12.191 12.91 12.82 12.91 11.781 WN10 49 0
28 HD 268856 WR* 04 58 56.3627926026 -68 48 04.730973756   12.130 10.827 10.34 9.33 WN4o(+OB) 37 0
29 HD 268847 WR* 04 59 51.5599828055 -67 56 55.440010992 13.658 14.21 14.58 14.75 14.426 WN4b 50 0
30 HD 33133 WR* 05 03 08.9129394547 -66 40 57.494039004   12.46 12.63 12.85   WN7h 88 0
31 HD 269015 WR* 05 04 12.3242039777 -70 03 55.403600765 13.183 14.07 14.28 14.40 14.108 WN4o 43 0
32 IRSF J05043264-6800594 WR* 05 04 32.6359467428 -68 00 59.430148027           WN3+O3V 5 0
33 Brey 15 WR* 05 05 08.4204405618 -70 22 45.124510417 13.572 14.47 14.62 14.81 14.714 WN3(h) 35 0
34 [M2002] LMC 71747 WR* 05 07 13.33 -70 33 33.9           WN3+O3V 5 0
35 HD 34169 WR* 05 09 40.4192565947 -68 53 24.755119043 12.773 13.47 13.65 14.02 13.697 WN4b+O5: 60 1
36 HD 34632 WR* 05 13 43.7715301497 -67 22 29.381793393 12.144 13.002 13.07 13.41 13.271 WN4+OB 28 0
37 HD 269227 WR* 05 13 54.2798782060 -69 31 46.659015245 11.429 11.98 11.918 12.13 10.557 WN9/10+M2Ia 151 0
38 BAT99 23 WR* 05 13 56.0303623817 -67 24 36.500016238   17.29 16.98     WN3(h) 11 0
39 HD 34783 WR* 05 14 12.7026819643 -69 19 26.109719984 13.668 14.115 14.49 14.55 14.150 WN4b 41 0
40 Brey 19a WR* 05 14 57.2839962735 -71 36 18.314627217   14.87 15.10 15.49   WN4ha 18 0
41 Brey 20 WR* 05 16 38.8429450210 -69 16 40.829526451 13.791 14.345 14.48 15.05 14.336 WN4b 35 0
42 HD 269333 WR* 05 18 19.2101847037 -69 11 40.655834630 10.375 11.23 11.29 11.47 11.412 WN+BI 56 0
43 Brey 23 WR* 05 20 44.7284628858 -65 28 20.444855910 13.774 14.43 14.65 14.87 14.534 WN4b+OB 35 0
44 [MNM2015] LMCe169-1 WR* 05 21 22.84 -65 52 49.0   17.31 17.12     WN3/O3 6 0
45 LHA 120-S 28 WR* 05 21 57.6943623106 -65 49 00.226696063 12.395 13.12 13.32 13.62 13.295 WN6h 42 0
46 Brey 25 WR* 05 22 04.4095841528 -67 59 06.779107874 14.589 15.326 15.207   14.993 WN4b 35 0
47 HD 36063 WR* 05 22 22.5297442838 -71 35 58.151974584 11.583 12.43 12.66 12.85 12.602 WN7 65 0
48 HD 269445 WR* 05 22 59.7854939490 -68 01 46.634598597 10.79 11.77 11.520 11.41 10.979 Ofpe/WN9 109 0
49 Brey 27 WR* 05 23 18.0134479119 -65 56 56.946620174 13.870 14.624 14.876   14.929 WN3(h) 34 0
50 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14826 1
51 HD 269485 WR* 05 24 24.1937327527 -68 31 35.596373567 13.593 14.40 14.46 14.39 14.574 WN4b/WCE+OB 54 0
52 Brey 30 WR* 05 24 54.3453654551 -66 14 11.164428361 16.080 16.545 16.328   15.915 WN3o 17 0
53 [MNM2015] LMCe159-1 WR* 05 24 56.89 -66 26 44.5   16.11 16.34     WN3/O3 5 0
54 Brey 33 WR* 05 26 36.8640 -68 50 59.640   14.591 14.77     WN4(h)a 28 0
55 HD 269549 WR* 05 26 42.5911221786 -69 06 57.346912373 14.308 14.53 14.76 15.11 14.589 WN4b 42 0
56 HD 269546 WR* 05 26 45.3199315750 -68 49 52.786974246 9.00 9.83 9.86 9.76 9.76 WN5b(h)+B3I 102 0
57 Brey 37 WR* 05 27 37.6899657541 -70 36 05.320790978 12.875 13.85 14.07 14.43 14.249 WN4o+OB 37 0
58 LHA 120-S 108 WR* 05 27 42.6937243511 -69 10 00.381363164 12.243 13.232 13.41 13.67 13.287 WN8ha 39 0
59 Brey 38 WR* 05 28 17.9144901496 -69 02 35.894956119   15.22 15.26     WN4o 29 0
60 IRSF J05282712-6906362 WR* 05 28 27.1202462643 -69 06 36.226949521           WN3+O3V 5 0
61 HD 269618 WR* 05 29 12.3652285107 -68 45 36.154397830 14.391 15.104 15.295 15.32 15.222 WN3b 28 0
62 IRSF J05291819-6919432 WR* 05 29 18.1867788243 -69 19 43.181373301           WN3+O3V 7 0
63 HD 269624 WR* 05 29 31.6378583206 -68 54 28.817861004 14.008 14.491 14.781 14.81 14.703 WN4b 42 1
64 Brey 40a WR* 05 29 33.2066825323 -70 59 34.838593733 12.472 13.20 13.39 13.90 13.743 WN4:b+O8V 39 0
65 Brey 41 WR* 05 29 53.6523752371 -69 01 04.806525190   13.740 13.70     WN5h 16 0
66 Brey 42 WR* 05 30 02.4528094820 -68 45 18.387450916 14.146 14.939 15.201   15.213 WN3b 29 0
67 Brey 44a WR* 05 31 18.0560933914 -69 08 45.424317531   14.55 14.26 14.26   WN8ha 22 0
68 HD 269687 WR* 05 31 25.5247019885 -69 05 38.555025424 10.86 11.78 11.87 12.05   WN11h 97 0
69 HD 269692 WR* 05 31 32.8700526346 -67 40 46.607545991 13.592 14.28 14.49 14.70 14.519 WN4b 43 0
70 Brey 45 WR* 05 31 34.3665416131 -67 16 29.330394365 14.146 14.696 14.897 15.02 14.835 WN4b 29 0
71 Brey 47 WR* 05 32 07.4961925425 -68 26 31.571311710 14.772 15.35 14.97 15.02 14.373 WN7h 31 0
72 HD 269748 WR* 05 33 10.5705967402 -67 42 43.055762502 12.093 13.054 13.186   12.828 WN4b+O8: 47 0
73 Brey 49 WR* 05 33 10.8687893344 -69 29 01.006247724 13.435 14.227 14.42   14.512 WN4(h)a 21 0
74 Brey 51 WR* 05 34 37.4804697354 -66 14 37.991946375 14.196 15.041 15.312   15.273 WN3(h) 20 0
75 Brey 52 WR* 05 34 52.0246318634 -67 21 28.976682258 13.624 14.451 14.597 14.84 14.719 WN4ha: 40 0
76 HD 269784 WR* 05 34 59.385 -69 44 06.33 13.347 14.081 14.073   14.321 WN4o+O9: 25 0
77 IRSF J05350090-6921202 WR* 05 35 00.9080148165 -69 21 20.262389558           WN3+O3V 5 0
78 Brey 55 WR* 05 35 15.18 -69 05 43.1 15.612 15.542 15.389     WN4o 19 0
79 Brey 54 WR* 05 35 29.7917416332 -67 06 49.401261592 14.351 15.082 15.360   15.427 WN3(h) 20 0
80 Brey 56 WR* 05 35 42.1983672394 -69 12 34.588531247 12.969 13.708 13.587   13.325 WN5ha 33 1
81 Brey 58 WR* 05 35 42.2160 -69 11 54.240   14.62 14.13     O3If*/WN6 36 0
82 Brey 60 WR* 05 35 44.279 -68 59 36.79 14.527 15.068 14.782 14.87 14.473 WN4+O8: 23 0
83 Brey 61 WR* 05 35 45.0257300827 -68 58 44.534221076 14.632 15.532 15.376   15.533 WN4h+O3: 22 0
84 Brey 63 WR* 05 35 50.6530709664 -68 53 39.203235953 13.730 14.578 14.59   14.841 WN5ha 18 0
85 Brey 63a WR* 05 35 52.4534325950 -68 55 08.630284898 14.703 15.438 15.584   15.670 WN3(h)a 15 0
86 HD 269848 WR* 05 35 54.0300531624 -67 02 48.969634432 13.694 14.06 14.34 14.65 14.440 WN4o 32 0
87 LHA 120-S 125 WR* 05 35 54.3750953895 -68 59 07.889523700 12.463 13.324 13.266 13.33 12.609 WN9ha 68 0
88 BAT99 77 WR* 05 35 58.889 -69 11 47.88           WN7 67 0
89 BAT99 78 WR* 05 35 59.085 -69 11 51.12   13.07 12.94     WN6(+O8V) 21 0
90 Brey 57 WR* 05 35 59.8169082147 -69 11 22.218225371 13.143 13.784 13.486   12.060 WN7ha+OB 31 0
91 BAT99 80 WR* 05 35 59.913 -69 11 50.70     13.0     O4If+OB 19 0
92 Brey 65a WR* 05 36 12.1332078789 -67 34 57.777217161 14.609 15.504 15.394   15.173 WN5h 15 0
93 Brey 66 WR* 05 36 33.58 -69 09 17.3 15.636 15.937 16.108   15.627 WN3b 28 0
94 Brey 69 WR* 05 37 11.4812136852 -69 07 38.184555289 15.959 16.427 16.301   15.936 WN3o 21 0
95 Brey 70a WR* 05 37 35.7057107734 -69 08 40.253264123 17.387 17.957 16.924   16.324 WN4b/WCE 25 0
96 HD 269883 WR* 05 37 40.494 -69 07 57.71 13.454 14.184 14.077 14.03 13.492 WN7h 39 0
97 Brey 73 WR* 05 37 46.3440 -69 09 09.360   12.222 12.11     WN6(h) 33 1
98 HD 269891 WR* 05 37 49.0345689657 -69 05 08.219994930 11.791 9.447 11.39 11.55   WN6+B1Ia 65 0
99 Brey 74a WR* 05 37 51.3383720439 -69 09 46.692195685 12.483 13.474 13.446 13.62 13.278 O3If* 30 0
100 HD 269908 WR* 05 38 27.7012451364 -69 29 58.547130741 14.243 14.40 14.29 14.59 14.230 WN4b 40 0
101 RMC 135 WR* 05 38 33.62 -69 04 50.4   12.63 13.48     WN7h+OB 55 0
102 Brey 81 WR* 05 38 36.4069267803 -69 06 57.535480245   14.02 13.76   12.80 WN8 28 0
103 BAT99 97 WR* 05 38 38.8398291702 -69 06 49.549647180   14.23 13.74   13.20 O3.5If*/WN7 24 0
104 Brey 79 WR* 05 38 39.1441735472 -69 06 21.299163377     13.5 13.33   WN6 29 0
105 Brey 78 WR* 05 38 40.2960 -69 05 59.640           O2.5If*/WN6 36 0
106 Brey 75 WR* 05 38 40.53 -69 05 57.2   12.84 12.75   12.34 WN6h 58 0
107 RMC 140b WR* 05 38 41.5650 -69 05 15.500   12.61 12.66   12.54 WN6 26 0
108 RMC 140a WR* 05 38 41.600 -69 05 13.39   12.18 12.12   12.40 WN4+WC5 31 0
109 Brey 76 WR* 05 38 41.8800 -69 06 13.680     12.5     O2If*/WN5 29 1
110 Brey 77 WR* 05 38 42.13 -69 05 55.3   11.08 10.96     O2If* 72 0
111 BAT99 106 WR* 05 38 42.291 -69 06 03.45   12.83 12.93     WN5h 52 0
112 RMC 139 WR* 05 38 42.3548071421 -69 04 58.201053806   12.04 11.94     O6.5Iafc+O6Iaf 86 0
113 BAT99 108 WR* 05 38 42.43 -69 06 02.2   12.78 12.77     WN5h 60 0
114 BAT99 109 WR* 05 38 42.45 -69 06 02.2   13.09 13.38     WN5h 37 0
115 BAT99 110 WR* 05 38 42.47 -69 06 02.0   13.73 13.73     O2If* 35 0
116 BAT99 111 WR* 05 38 42.765 -69 06 03.36   13.51 13.66     WN9ha 37 0
117 BAT99 112 WR* 05 38 42.9162 -69 06 04.938   12.95 12.86     WN5h 48 0
118 BAT99 113 WR* 05 38 43.12 -69 05 46.8   13.56 13.47   13.44 O2If*/WN5 36 0
119 BAT99 114 WR* 05 38 43.20 -69 06 14.6   13.52 13.40   13.31 O2If*/WN5 31 0
120 Brey 84 HXB 05 38 44.2507887068 -69 06 06.008788720     13.10   12.70 WN5h:a 52 0
121 HD 269926 WR* 05 38 47.5177886261 -69 00 25.287665455 11.953 12.974 13.116 13.16 12.926 WN4+OB 62 0
122 HD 38282 WR* 05 38 53.3788120199 -69 02 00.896643506   10.98 11.11 11.26   WN5/6h+WN6/7h 150 1
123 HD 269928 WR* 05 38 57.0668705166 -69 06 05.660972436   12.02 11.94 12.00 11.58 WN6/7 119 0
124 [ST92] 5-68 WR* 05 38 58.0966488330 -69 29 19.556379292       12.51 12.43 WN9h 49 0
125 HD 38344 WR* 05 39 11.3191294608 -69 02 01.572235036 12.323 13.04 12.993 13.07 12.574 WN5h 65 0
126 Brey 93a WR* 05 39 36.2160 -69 39 10.800           WN4 15 0
127 [MNM2014] LMC174-1 WR* 05 40 03.57 -69 37 53.1           WN3+O 5 0
128 HD 269956 WR* 05 40 07.5364893415 -69 24 31.929655191 12.043 13.014 13.166 13.51 13.205 WN4b+O8: 41 0
129 Brey 96 WR* 05 40 50.7850709895 -69 26 31.688910163 14.965 15.549 15.718   15.494 WN3b 20 0
130 [MNM2015] LMCe078-3 WR* 05 41 17.50 -69 06 56.2   17.06 17.03     ~ 5 0
131 Brey 97 WR* 05 41 48.5698169547 -70 35 30.786068009 13.570 14.522 14.701 14.50 14.834 MN3ha+O5V 23 1
132 LHA 120-S 142 WR* 05 44 31.0203074516 -69 20 15.441699666 11.946 12.85 12.71 12.80 12.260 WN11h 28 0
133 Brey 98 WR* 05 44 53.7274582046 -67 10 36.132942102       14.57 14.45 WN3/5 28 1
134 Brey 99 WR* 05 45 24.1680078197 -67 05 56.734976254 14.221 14.69 14.81 14.88 14.371 WN4b(h) 34 0
135 LHA 120-S 61 WR* 05 45 51.9393679113 -67 14 25.939050679 10.870 11.86 11.95 12.09 11.931 WN11h 77 0
136 HD 270149 WR* 05 46 46.3466957956 -67 09 58.269764283 14.025 14.20 14.48 14.76 14.524 WN4b 50 0
137 HD 45166 WR* 06 26 19.1550467867 +07 58 28.071465236 9.05 9.81 9.88     WRpec+B8V 70 1
138 HD 50896 WR* 06 54 13.0440847499 -23 55 42.020318514 5.74 6.63 6.91 7.74   WN4b 736 0
139 HD 56925 WR* 07 18 29.1313276537 -13 13 01.513156589 11.21 11.74 11.56 11.40   WN4b 154 0
140 HD 65865 WR* 07 59 46.2452165709 -28 44 03.084742445 10.62 11.20 10.90 11.16   WN5h 98 0
141 CD-45 4482 WR* 08 44 47.2902196838 -45 58 55.414166402 10.95 11.29 10.74 10.58   WN8h+? 98 0
142 HD 86161 WR* 09 54 52.9034376427 -57 43 38.273623332 7.94 8.65 8.36 8.93   WN8h 202 0
143 HD 89358 WR* 10 17 02.2741836044 -57 54 46.871795579 11.1 11.19 10.83 10.59   WN4-s 157 1
144 WR 20 WR* 10 19 18.4020182129 -59 09 38.850146550   15.34 14.60     WN5-w 34 0
145 HD 90657 WR* 10 26 31.4088129340 -58 38 26.179161012 9.53 10.07 9.65 9.84   WN5+O4-6 146 0
146 HD 92740 WR* 10 41 17.5154230335 -59 40 36.897706569 5.68 6.50 6.42 7.38   WN7h+O9III-V 381 0
147 HD 93131 WR* 10 43 52.2575981063 -60 07 04.016913264 5.52 6.43 6.48 7.46   WN6ha-w 274 0
148 HD 93162 WR* 10 44 10.3888220947 -59 43 11.105959983 7.90 8.55 8.80 8.66   O2.5If*/WN6+OB 334 1
149 WR 28 WR* 10 48 58.7235338702 -59 03 37.303699221   13.70 12.98     WN6(h)-w 29 0
150 WR 34 WR* 11 00 06.4565379740 -61 26 30.107771412   15.26 14.50     WN5-w 31 0
151 WR 35 WR* 11 00 21.86 -61 13 52.3   14.58 13.83     WN6h-w 31 0
152 WR 36 WR* 11 02 32.9786581120 -59 26 20.908131146   13.90 12.94 12.86   WN5-s 32 0
153 WR 37 WR* 11 05 13.9025929090 -61 20 41.184951648   17.40 16.0     WN4-s 36 0
154 HD 96548 WR* 11 06 17.2033098417 -65 30 35.237611013 7.10 7.80 7.70 8.49   WN8h 388 0
155 MR 39 WR* 11 16 57.8367853584 -59 26 23.891767387   13.04 12.79 12.71   WN4-w 49 0
156 HD 104994 WR* 12 05 18.7203813373 -62 03 10.139083749 9.95 10.94 10.93 11.03   WN3p-w 153 0
157 WR 49 WR* 13 13 51.3090989970 -65 18 08.897671074   13.59 13.40 13.51   WN5(h)-w 39 0
158 MR 45 WR* 13 18 23.3593856408 -62 28 21.220292118   15.53 14.32 13.97   WN4-w 44 0
159 MR 48 WR* 13 32 43.7631500403 -65 01 27.835643271 12.85 13.20 12.73 12.61   WN5-w 52 0
160 HD 117688 WR* 13 33 30.1195029290 -62 19 01.211515819 8.69 10.81 10.90 10.44   WN7 117 0
161 MR 53 WR* 14 13 03.5249088603 -65 26 52.708243005 11.93 12.51 12.32 12.21   WN5-w 65 0
162 WRAY 16-154 WR* 14 31 06.13 -61 20 59.5   15.82 14.22     WN6-s 30 1
163 WRAY 15-1254 WR* 14 50 58.2650618251 -59 51 26.428849251 14.29 13.96 12.47 11.85   WN6 41 0
164 HD 134877 WR* 15 14 57.7490917148 -59 50 30.232117350 12.13 12.19 11.34 11.08   WN8(h) 94 0
165 MR 55 WR* 15 15 32.6263216950 -59 02 30.692489276 12.46 12.56 11.84 11.63   WN6-w 63 0
166 HD 143414 WR* 16 03 49.3451223381 -62 41 35.942835918 9.32 10.03 10.10     WN6-w 102 0
167 WR 74 WR* 16 16 13.81 -51 36 41.8   15.53 14.01     WN7 26 0
168 HD 147419 WR* 16 24 26.2278740665 -51 32 06.062121260   11.46 10.50 10.74   WN6-s 104 0
169 HD 151932 WR* 16 52 19.2478420644 -41 51 16.269632432 6.06 6.79 6.51 7.64   WN7h 292 0
170 WRAY 15-1600 WR* 17 04 04.6347450070 -45 12 15.059699813 12.95 13.00 11.55 11.85   WN7(h) 43 0
171 THA 31-1 WR* 17 11 21.7005819428 -39 53 21.977257211   14.18 13.01 12.54   WN7 36 0
172 LS 3982 WR* 17 14 27.1191115555 -39 45 47.053559348 10.63 10.95 10.41     WN6h-w 63 0
173 WRAY 15-1666 WR* 17 18 52.8750745581 -38 50 03.606959080 13.93 13.27 11.83 11.43   WN7 65 0
174 CD-38 11746 WR* 17 19 00.5230727136 -38 48 51.250086613 13.01 12.48 11.02 10.55   WN8h 88 0
175 WR 91 WR* 17 20 22.0232742995 -38 56 48.379201459   17.70 16.2     WN7 33 0
176 HD 158860 WR* 17 33 07.0669567120 -33 38 23.500757398   12.20 10.69 10.38   WN5-w 49 0
177 HD 318139 WR* 17 42 09.7605770497 -32 33 24.800534509   13.93 12.78 12.20   WN7 43 0
178 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11533 0
179 EM* AS 268 WR* 18 02 23.4579211710 -23 34 37.481060535   14.38 12.31 11.43   WN9h 96 0
180 SS73 123 WR* 18 04 46.0977446521 -21 51 27.157890594   15.00 13.51 12.80 11.35 WN8 29 0
181 HD 313846 WR* 18 05 25.7345590489 -23 00 20.335027460 10.48 10.69 9.89 9.89   WN9h+OB 123 0
182 HD 165688 WR* 18 07 56.9612003141 -19 23 56.866361615 10.46 10.31 9.87 9.85   WN5-6b 144 0
183 MR 87 WR* 18 25 30.0233828772 -14 38 41.034349989 13.38 13.09 11.86 11.33   WN6-w 71 0
184 EM* AS 306 WR* 18 27 04.2927141192 -12 22 52.681549543   14.79       WN8h 45 0
185 MR 89 WR* 18 41 00.8669826586 -04 26 14.473452479 13.1 12.97 11.93 11.67   WN7 65 2
186 HD 177230 WR* 19 03 59.0232385542 -04 19 01.911120922 11.32 11.60 11.12     WN8 160 0
187 Hen 2-427 WR* 19 11 30.8750511254 +16 51 38.199008052   12.19 11.50     WN8h 313 0
188 MR 96 WR* 19 48 18.2649973585 +30 26 52.670591228   13.3 13.4     WN4-w 33 0
189 HD 187282 WR* 19 48 32.1968574697 +18 12 03.693991312 9.60 10.49 10.51     WN4(h)-w 182 0
190 EM* AS 374 WR* 19 59 12.5938476816 +31 27 09.011482722   13.57 12.13 11.52   WN8(h) 59 1
191 MR 97 WR* 20 00 19.1224209318 +33 15 51.098849239 12.93 13.050 12.080     WN7h 71 0
192 HD 191765 WR* 20 10 14.1929815789 +36 10 35.069005168 7.64 8.08 8.08     WN6-s 419 0
193 HD 192163 WR* 20 12 06.5420067895 +38 21 17.783840972 7.12 7.49 7.50     WN6(h)-s 517 0
194 EM* AS 431 WR* 20 36 43.6345223872 +40 21 07.453291511       12.51   WN8(h)+B0.5V 209 0
195 HD 197406 WR* 20 41 21.5486849958 +52 35 15.140677138 10.42 10.87 10.30     WN8h+B3IV/BH 186 0
196 WR 149 WR* 21 07 11.6932466487 +48 25 36.238906743   15.90 14.70     WN5-s 41 0
197 HD 211564 WR* 22 16 24.0322637172 +55 37 36.763974776   11.72 11.61     WN3(h)-w 113 0
198 MR 119 WR* 23 00 10.1254033879 +60 55 38.409749646 11.85 12.18 11.01     WN8h 90 0
199 EM* AS 513 WR* 23 43 30.5961785796 +61 55 48.136617629 12.02 11.98 11.282     WN7h+Be? 64 0

    Equat.    Gal    SGal    Ecl

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2020.07.05-07:15:51

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