1994A&A...287..835S


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.02CET20:05:09

1994A&A...287..835S - Astronomy and Astrophysics, volume 287, 835-842 (1994/7-3)

Improved bolometric corrections for WR stars from cluster membership and evolutionary models.

SMITH L.F., MEYNET G. and MERMILLIOD J.-C.

Abstract (from CDS):

Evolutionary models allow an assignment of both a mass and a luminosity to a Wolf-Rayet (WR) star in a cluster, and hence allow a determination of the Bolometric Correction (B.C.). We plot all cluster WR stars in the Mv,logM/M diagram of Smith & Maeder (1989); this more than doubles the number of stars and extends the subclasses represented to include WN4.5, WC9 and WO2. The same method applied to WR stars in associations yields large uncertainties but includes useful limits on subclasses not represented in clusters: WN2, 3 and 8 and WC 5 and 6. The increased sample and expanded subclass range give a discrimination in the B.C. that was not previously possible. The B.C.'s derived for WN stars range from -4.0 to -6.0 with the expected trend of larger values for stars with higher excitation spectra. For WC stars, there is little evidence for a similar trend; most observations presented here are consistent with B.C.=-4.5, as before. The convergence of B.C. values derived from evolutionary and atmospheric models is extremely satisfactory, giving increased confidence in both methods.

Abstract Copyright:

Journal keyword(s): stars: Wolf-Rayet - atmospheres - fundamental parameters

Simbad objects: 74

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Number of rows : 74

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 4004 WR* 00 43 28.3971235391 +64 45 35.383738645 10.28 10.718 10.138     WN4-s 184 0
2 Ass Cas OB 7 As* 00 50 14 +64 04.3           ~ 60 0
3 Ass Cas OB 1 As* 01 00 +61.5           ~ 39 0
4 HD 6327 WR* 01 05 23.0143603 +60 25 18.965197   11.49 11.33     WN2-w 111 0
5 HD 62910 WR* 07 44 58.2216344436 -31 54 29.553631132 10.08 10.44 10.10 10.17   WN6/WC4 119 0
6 C 0757-284 OpC 07 58.9 -28 35   7.66 7.2     ~ 47 0
7 HD 65865 WR* 07 59 46.2452165709 -28 44 03.084742445 10.62 11.20 10.90 11.16   WN5h 101 0
8 Ass Vel OB 2 As* 08 09 22.478 -47 21 03.46           ~ 219 0
9 * gam02 Vel WR* 08 09 31.95013 -47 20 11.7108 0.64 1.58 1.83 1.85 2.00 WC8+O7.5III-V 848 0
10 HD 76536 WR* 08 54 59.1670924993 -47 35 32.662255423 9.04 9.13 8.80 9.52   WC 115 0
11 Ass Car OB 1 As* 10 38 -59.0           ~ 144 0
12 HD 92740 WR* 10 41 17.5154230335 -59 40 36.897706569 5.68 6.50 6.42 7.38   WN7h+O9III-V 383 0
13 HD 92809 WR* 10 41 38.3243559450 -58 46 18.721755258 8.95 9.28 9.03 9.60   WC6 141 0
14 HD 93131 WR* 10 43 52.2575981063 -60 07 04.016913264 5.52 6.43 6.48 7.46   WN6ha-w 279 0
15 Cl Collinder 228 OpC 10 44 00 -60 05.2   4.58 4.4     ~ 191 0
16 HD 93162 WR* 10 44 10.3888220947 -59 43 11.105959983 7.90 8.55 8.80 8.66   O2.5If*/WN6+OB 338 1
17 Cl Trumpler 16 OpC 10 45 10 -59 43.0   5.35 5.0     ~ 432 0
18 NAME Cha T Association As* 11 08 -77.0           ~ 41 1
19 HD 97950 Cl* 11 15 07.346 -61 15 38.52 9.64 9.83 9.03 9.69   WR 184 2
20 NGC 3603 OpC 11 15 18.6 -61 15 26           ~ 964 1
21 Cl Hogg 15 OpC 12 43 36 -63 05.9   11.21 10.3     ~ 45 0
22 HD 311884 WR* 12 43 50.9989169468 -63 05 14.811840934 11.45 11.64 10.81 10.59   WN6+O5V 157 0
23 Ass Cha T 2 As* 13 00 -77.0           ~ 18 1
24 Ass Cen OB 1 As* 13 02 -61.4           ~ 104 0
25 * tet Mus WR* 13 08 07.1527888825 -65 18 21.679641155 4.71 5.50 5.53 5.44 5.40 WC5+B0III 297 0
26 WR 48a WR* 13 12 39.65 -62 42 55.8           WC6 80 0
27 CPD-61 3569 WR* 13 18 01.0418998738 -62 26 04.755158118 12.66 12.64 11.88 11.84   WC7+OB 60 0
28 MR 45 WR* 13 18 23.3593856408 -62 28 21.220292118   15.53 14.32 13.97   WN4-w 45 0
29 Cl Pismis 20 OpC 15 15 23 -59 04.0   8.69 7.8     ~ 88 0
30 MR 55 WR* 15 15 32.6263216950 -59 02 30.692489276 12.46 12.56 11.84 11.63   WN6-w 66 0
31 HD 151932 WR* 16 52 19.2478420644 -41 51 16.269632432 6.06 6.79 6.51 7.64   WN7h 296 0
32 NGC 6231 OpC 16 54 08.51 -41 49 36.0   2.83 2.6     ~ 488 0
33 HD 152270 WR* 16 54 19.6991728950 -41 49 11.535393651 6.26 6.80 6.597 6.72 6.39 WC7+O5-8 287 0
34 WRAY 15-1666 WR* 17 18 52.8750745581 -38 50 03.606959080 13.93 13.27 11.83 11.43   WN7 67 0
35 CD-38 11746 WR* 17 19 00.5230727136 -38 48 51.250086613 13.01 12.48 11.02 10.55   WN8h 89 0
36 Cl Pismis 24 OpC 17 24 43.0 -34 12 23   11.00 9.6     ~ 109 0
37 HD 157504 WR* 17 25 08.8534998754 -34 11 12.502902170 12.80 12.10 10.68 10.39 11.546 WC7+O7-9 110 0
38 MR 74 WR* 17 36 19.8953384759 -33 26 12.274561705 16.01 14.87 13.18 12.99   WC9 84 1
39 Cl Trumpler 27 OpC 17 36 20 -33 31.0   8.24 6.7     ~ 91 1
40 MR 80 WR* 18 02 04.1238716757 -23 37 42.144766363   14.85       WC9 212 2
41 EM* AS 268 WR* 18 02 23.4579211710 -23 34 37.481060535   14.38 12.31 11.43   WN9h 97 0
42 Ass Sgr OB 1 As* 18 06 -22.8           ~ 118 0
43 HD 165763 WR* 18 08 28.4691215895 -21 15 11.182287576 7.16 7.54 7.82 8.55   WC6 271 0
44 Ass Ser OB 2 As* 18 18 -12.3           ~ 60 0
45 HD 168206 WR* 18 19 07.3628284656 -11 37 59.165038875 9.65 9.88 9.10     WC8+O8/9III/V 285 1
46 Ass Ser OB 1 As* 18 21 -14.4           ~ 74 0
47 HD 169010 WR* 18 23 16.3425134513 -13 43 26.103469647 13.53 12.99 12.02 11.95   WC 75 0
48 MR 87 WR* 18 25 30.0233828772 -14 38 41.034349989 13.38 13.09 11.86 11.33   WN6-w 74 0
49 HD 186943 WR* 19 46 15.9393000440 +28 16 19.074048808 9.86 10.50 10.23     WN3+O9.5V 177 1
50 Ass Vul OB 2 As* 19 47.6 +28 49           ~ 27 0
51 HD 190918 WR* 20 05 57.3242972785 +35 47 18.153743699 6.11 6.88 6.75     WN5+O9I 345 0
52 NGC 6871 OpC 20 05 59 +35 46.6   5.43 5.2     ~ 198 0
53 Ass Cyg OB 3 As* 20 07 +35.9           ~ 169 0
54 HD 191765 WR* 20 10 14.1929815789 +36 10 35.069005168 7.64 8.08 8.08     WN6-s 425 0
55 HD 192103 WR* 20 11 53.5274946554 +36 11 50.523501826 7.77 8.13 8.11     WC8+OB: 323 0
56 HD 192163 WR* 20 12 06.5420067895 +38 21 17.783840972 7.12 7.49 7.50     WN6(h)-s 522 0
57 HD 192641 WR* 20 14 31.7667382048 +36 39 39.597237795 7.80 8.20 7.91     WC7pd+O9V 312 0
58 HD 193077 WR* 20 17 00.0264117871 +37 25 23.780238760 7.82 8.32 8.01 8.71   WN5-w+B? 279 0
59 Ass Cyg OB 1 As* 20 17.8 +37 38           ~ 249 1
60 HD 193576 WR* 20 19 32.4230196684 +38 43 53.958209968 8.15 8.53 8.00     WN5+O6II-V 686 0
61 Cl Berkeley 86 OpC 20 20 12 +38 41.4   8.66 7.9     ~ 107 0
62 HD 193928 WR* 20 21 31.7290292758 +36 55 12.769017074 10.67 10.60 9.78     WN5-w+O5V-III 189 0
63 Cl Berkeley 87 OpC 20 21 43.01 +37 22 13.8           ~ 110 0
64 WR 142 WR* 20 21 44.3438534563 +37 22 30.543604467   14.39 12.99 12.73 11.04 WO2 122 0
65 EM* AS 422 WR* 20 32 06.2783569769 +40 48 29.521225515   13.46 11.83     WN7o/CE+O7V(f) 95 0
66 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 810 0
67 HD 211564 WR* 22 16 24.0322637172 +55 37 36.763974776   11.72 11.61     WN3(h)-w 115 0
68 HD 211853 WR* 22 18 45.6058273717 +56 07 33.896665584 8.84 9.39 9.00     WN6o+O6I 261 0
69 HD 213049 WR* 22 27 17.8189297929 +56 15 11.768608852   11.71 10.99     WC6 82 0
70 Ass Cep OB 1 As* 22 29 +56.6           ~ 83 0
71 HD 214419 WR* 22 36 53.9549498582 +56 54 20.985957352 8.68 9.21 8.80     WN6o+O9Ib/II 364 1
72 HD 219460 ** 23 15 12.39033 +60 27 01.8129 10.23 10.51 9.89     B1II+WN4.5 129 0
73 HD 219460A * 23 15 12.394 +60 27 01.84   10.96 10.57     B1II 124 0
74 Cl Mrk 50 OpC 23 15 15 +60 26.0   9.09 8.5     ~ 45 0

    Equat.    Gal    SGal    Ecl

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2020.12.02-20:05:09

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