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List of Wolf-Rayet stars

From Wikipedia, the free encyclopedia

This is a list of Wolf-Rayet stars, in order of their distance from Earth.[1][2][3]

List

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Milky Way Galaxy

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Star system Nebula Median distance (ly) Stars in system Spectral type Apparent magnitude (V) Comments and references
Gamma² Velorum (WR 11/Suhail al Muhlif/Regor) 1096+26
−23
2 WC8 1.83 The Closest Wolf-Rayet star to Earth.
HD 45166 3,232 qWR 9.88 The primary of HD 45166 is currently the only known example of a qWR star.
HD 107969 3,377.2±153.6 1 WC Center star of NGC 4361 Nebula.
WR 142 4,000 WO2 12.94
HD 151932 (WR 78) 4,100 WN7h 6.45 - 6.61
HD 326823 (V1104 Scorpii) 4,142 WNpec 9.03
HD 151932 (WR 78) 4,200 WN7h 6.45 - 6.61
EZ Canis Majoris (WR 6) 4,900 WN4-s 6.91
WR 111 (HD 165763) 5,316+320
−230
WC5 +7.82
WR 140 (SBC9 1232) 5,600 ± 300 2 WC7p 6.85
HD 152408 (WR 79a) 5,600 1 WN9ha 5.81-5.85
WR 93 5,900 WC7
WR 133 (V1676 Cyg) 6,100 ± 300 2 WN5o 6.75 - 6.84
HD 152408 (WR 79a) 6,500 1 WN9ha 5.81-5.85
WR 25 (HD 93162) 6,500 2 O2.5If*/WN6 8.80
Apep (WR 70-16) 6523+400
−300
3 WR + WR
CV Serpentis (WR 113) 6,700 ± 200 2 WC8d 9.08
WR 136 (HD 192163) 6,700 ± 500 1 WN6(h)-s 7.50
WR 86 6849 ± 800 WR 9.27
HD 83535 7,270 WC3 Central star of NGC 2867 Nebula.
Theta Muscae (WR 48a) 7,400 4 WC5/6 5.53
WR 93b 7,600 ± 500 1 WO3 15.2
WR 2 8,186 WN2-w 11.33
WR 22 (V429 Carinae) 8,300 ± 700 2 WN7h 6.42
WR 104 (V5097 Sgr) 8,400 3 WC9d 13.28 + 15.36
AG Pegasi 9,000 2 WR 6.0 - 9.4
WR 8 1 WR
WR 46 (DI Crucis) 9,300 ± 900 WN3p-w 10.83
WR 3 9,458+520
−390
WN3-hw 10.69
WR 102 9,500 ± 600 WO2 14.10
WR 138 10,000 WR
WR 1 10,500 ± 500 WN4-s 10.54
WR 157 11285.01 WN4.5 Member of Markarian 50 Cluster.
WR 69 11,350 WC9d 9.1
WR 9 12,000 ± 600 2 WC4 10.50
WR 142a 13,000 1 WR
WR 21a 13,100 ± 700 O3/WN5ha + O3Vz((f*)) 12.661
CD Crucis (WR 47) 14,000 WN6o 10.81
WR 120–6 WN4 It is the central star of Abell 48 Planetary Nebula.
WR 24 (HD 93131) WN6ha-w 6.48 - 6.50
WR 20a 14,000 ± 1,000 2 O3If*/WN6 + O3If*/WN6 13.28
WR 142b 15,000 1 WR
WR 7 (HD 56925) 16,000 WN4-s 11.56
AG Carinae 17,000 ± 1,000 2 WN11 6.96
WR 12 (V378 Velorum) 19,000 ± 1,000 1 WN8h 10.78
OAO 1657-415 20,000 Ofpe/WN9 >23
WR 124 (QR Sagittae) 21,000 ± 2,000 WN8h 11.50±0.11
WR 30a 21,917+1,400
−1,090
WO4
Cygnus X-3 (WR 145a/V1521 Cyg) 24,135±1,100 WN 4–6
NGC 3603-A1 (WR 43a/HD 97950A1) 24,800 2 WN6h+WN6h 11.18
NGC 3603-B (WR 43b/HD 97950B) 1 WN6h 11.33
NGC 3603-C (WR 43c/HD 97950C) WN6h 11.89
HD 97950 (WR 43) 25,000 WR 9.03 It is the central core of a super star cluster within the NGC 3603 H II region (similar to R136 within the Tarantula Nebula).
Arches-F1 (WR 102ad) WN8-9h
Arches-F6 (WR 102ah) WN8-9h
Arches-F9 (WR 102ae) WN8-9h
WR 42e (2MASS J11144550-115001) O3If*/WN6 14.53
G0.059-0.068 26,000 B0-1Ia+/WNLh
G0.238-0.071 WN11h Present in the Galactic Center region of Milky Way.
WR 102ka (Peony Star) Ofpe/WN9
WR 102c WN6 11.6
WR 102ea WN9h 8.8
GCIRS 13E (WR 101f) WR Located near Galactic Center.
GCIRS 16SW Ofpe/WN9 Located near Galactic Center.
WR 101-2 (CXOGC J174516.1-284909) 26,092 Ofpe/WN9
WR 31a (Hen 3-519) 28,000 WN11h 10.85
WR 102e WR
WR 150 28,473+1,700
−1,380
WC5 13.47
HD 826 30,000 WC8 Center Star of NGC 40 Nebula.
WR 102b 31,000 WR
Mercer 30-1 A (WR 46-3 A) 40,000 WR
Mercer 30-7 A WR

Magellanic Clouds

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The Large Magellanic Cloud (LMC) is around 163 kly distant and the Small Magellanic Cloud (SMC) is around 204 kly distant.

Host galaxy Star system Median distance (ly) Stars in system Spectral type Apparent magnitude (V) Comments and references
LMC LMC195-1 160,000 1 WO2 15.15
LH 41-1042 WO4 13.95
R145 (HD 269928) 163,000 2 WN6h + O3.5If*/WN7 12.04
HD 38282 (BAT99-118/Brey 89) WN5-6h + WN6-7h 11.11
BAT99-7 1 WN4b 13.81
BAT99-123 (Brey 93) WO3 15.204
Melnick 34 (BAT99-116) 2 WN5h + WN5h 13.09
R136a1 (RMC 136a1) 1 WN5h 12.23
R136a2 (RMC 136a2) WN5h 12.34
R136a3 WN5h 12.97
R136c WN5h 12.86
R71 (HD 269006) 164,000 WR 8.7 - 9.9 - 11.2
VFTS 457 O3.5If*/WN7
VFTS 482 O3If*/WN6-A
VFTS 545 O2If*/WN5
VFTS 682 WN5h 16.08
VFTS 1022 O3.5If*/WN7
R134 WR
R146 WN4
BAT99-98 165,000 WN6 13.38
R99 Ofpe/WN10 11.46
SMC SMC AB7 197,000 2 WN4 13.016
SMC AB8 WO4 12.83
HD 5980 200,000 1 WN4 8.8 - 11.9

Andromeda Galaxy and Triangulum Galaxy

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The Andromeda Galaxy (M31) is 2.5 Mly distant and the Triangulum Galaxy is around 3.2 Mly distant

Host galaxy Star system Median distance (ly) Stars in system Spectral type Apparent magnitude (V) Comments and references
Triangulum [BMS2003] 867 2,700,000 2 O4Iab+O4Ia
Romano's Star WN8h–WN11h 16.5–18.8

Other Galaxies

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Host Galaxy Star system Median distance (ly) Stars in system Spectral type Apparent magnitude (V) Comments and references
NGC 6822 NGC 6822-WR 12 (LGGS J194513.50-144512.9) 1,540,000 1 WN4 18.96
IC 1613 DR1 (CAIRNS J010501.61+020420.6) 2,350,000 WO3 19.857 [4]

See also

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References

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  1. ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ^ Barry, Don C. (January 1970), "Spectral Classification of a and F Stars", Astrophysical Journal Supplement, 19: 281, Bibcode:1970ApJS...19..281B, doi:10.1086/190209.
  3. ^ Frost, E. B. (December 1924), "Fourteen spectroscopic binaries", Astrophysical Journal, 60: 319–320, Bibcode:1924ApJ....60..319F, doi:10.1086/142868.
  4. ^ Tramper, F.; Gräfener, G.; Hartoog, O. E.; Sana, H.; de Koter, A.; Vink, J. S.; Ellerbroek, L. E.; Langer, N.; Garcia, M.; Kaper, L.; de Mink, S. E. (2013). "On the nature of WO stars: a quantitative analysis of the WO3 star DR1 in IC 1613". Astronomy & Astrophysics. 559: A72. arXiv:1310.2849. doi:10.1051/0004-6361/201322155. ISSN 0004-6361.