List of hottest stars

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This is a list of hottest stars so far discovered (excluding degenerate stars), arranged by decreasing temperature. The stars with temperatures higher than 60,000 K are included.

Contents

List

Star nameEffective
Temperature
(K)		Mass
(M☉)		Luminosity
(L☉)		 Spectral type Distance
(light-years)		Ref.
WR 102 200,00016.1380,000 WO2 8,610 [1] [2] [3]
WR 142 200,00028.6912,000 WO2 5,400 [3]
LMC195-1 200,000257,000 WO2 ~160,000 [4]
BAT99-123 170,0007.7158,000 WO3 ~160,000 [5]
WR 93b 160,0008.1110,000 WO3 7,470 [1] [3]
[HC2007] 31160,000? WO3 12,886,000 [6]
BAT99-53 A 158,00013224,000 WC4 ~160,000 [7]
IC 1613 DR1150,00020480,000 WO3 ~2,380,000 [8]
LH41-1042 150,0008.4182,000 WO4 ~160,000 [5]
BAT99-2 141,00013234,000 WN2 ~160,000 [9]
BAT99-94 141,00024631,000 WN3 ~160,000 [9]
WR 2 141,00016282,000 WN2 7,830 [1]
AB8 141,000191,413,000 WO4 197,000 [5]
BA 1-458 140,00028.1776,000 WO4 2,500,000 [10]
WR 9 (WR)139,7009501,000 WC4 14,900 [1]
WR 30a (WR)129,5007.5-9.7195,000 WO4 25,340 [11]
WR 38 126,00010.4724,000 [12] WC4 19,700 [12] [3]
WR 142a 125,0007.9110,000 WC8 5,900 [12] [13]
WR 1 112,20027759,000 WN4-s 10,300 [1] [14]
WR 18 112,200381,288,000 WN4-s 12,500 [1] [14]
WR 46 112,20014263,000 WN3pw 13,000
WR 7 112,00013214,000 WN4-s 14,000 [14]
WR 144 112,0009.9159,000 WC4 5,710 [1] [3]
WR 52112,0008.5117,000 WC4 5,710 [1] [3]
AB7 105,000231,259,000 WN4 197,000 [15]
WR 37 100,000341,122,000 WN4-s 21,900 [12]
Gamma Velorum (WR)90,0009204,000 WC8 1,100 [16]
EZ CMa 89,10023617,000 WN4-s 5,900[ citation needed ] [17]
WR 36 89,10012200,000 WN5-s 17,700 [1] [14]
WR 111 89,10013245,000 WC5 5,320 [1] [3]
WR 150 89,10024.8724,000 WC5 28,500 [1] [3]
WR 19 A 79,400400,000 WC5d 14,000 [1] [18] [19]
WR 44 79,40018417,000 WN4-w 19,800 [1] [14]
WR 58 79,0008.489,100 WN4/WCE 19,700 [1] [3]
BAT99-37 79,00019447,000 WN3o 160,000 [9]
WR 45 79,00014.1282,000 WC6 13,900 [1] [3]
WR 136 70,80015260,000 WN6(h)-s 6,290 [1]
WR 75 63,10018389,000 WN6-s 10,800 [1] [14]
WR 134 63,10019400,000 WN6-s 6,000 [14]
WR 60 63,10023631,000 WC8 11,500 [1] [3]
WR 149 63,10014269,000 WN5-s 15,900 [1] [14]

See also

Related Research Articles

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<span class="mw-page-title-main">Melnick 42</span> Massive blue supergiant star in the constellation Dorado

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<span class="mw-page-title-main">WR 102</span> Star in the constellation Sagittarius

WR 102 is a Wolf–Rayet star in the constellation Sagittarius, an extremely rare star on the WO oxygen sequence. It is a luminous and very hot star, highly evolved and close to exploding as a supernova.

WR 114 is a Wolf-Rayet star in the constellation of Scutum. It is an early type star of the carbon sequence (WCE) classified as WC5.

<span class="mw-page-title-main">WR 93b</span> Wolf-Rayet star in the constellation of Cygnus

WR 93b is a Wolf-Rayet star in the constellation Scorpius, an extremely rare star on the WO oxygen sequence. It appears near NGC 6357 in the tail of the scorpion.

WR 2 is a Wolf-Rayet star located around 8,000 light years away from Earth in the constellation of Cassiopeia, in the stellar association Cassiopeia OB1. It is smaller than the Sun, but due to a temperature over 140,000 K it is 282,000 times as luminous as the Sun. With a radius of 89% that of the Sun, it is the smallest known WN star in the Milky Way.

<span class="mw-page-title-main">WR 128</span> Wolf-Rayet star in the constellation Sagitta

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<span class="mw-page-title-main">WR 120</span> Binary star system in the constellation Scutum

WR 120 is a binary containing two Wolf-Rayet stars in the constellation of Scutum, around 10,000 light years away. The primary is a hydrogen-free weak-lined WN7 star, the secondary is a hydrogen-free WN3 or 4 star, and the system is a possible member of the cluster Dolidze 33. From our point of view, WR 120 is reddened by 4.82 magnitudes, and it has the variable designation of V462 Scuti.

BAT99-7 is a WN-type Wolf-Rayet star located in the Large Magellanic Cloud, in the constellation of Dorado, about 160,000 light years away. The star has a spectrum containing extremely broad emission lines, and is the prototype for the "round line" stars, Wolf-Rayet stars whose spectra are characterized by strong and broad emission lines with round line profiles. The broad emission lines hint at an extremely high temperature of nearly 160,000 Kelvin, which would make it the hottest of all WN stars with known temperatures, as well as an extraordinarily large mass loss rate for a Wolf-Rayet star in the LMC, at 10−4.48 M☉/yr, which means that every 30,200 years, the star loses 1 solar mass worth of mass.

WR 119 is a Wolf–Rayet star located about 10,500 light years away in the constellation Scutum. WR 119 is classified as a WC9 star, belonging to the late-type carbon sequence of Wolf-Rayet stars. WR 119 is noteworthy for being the least luminous known Wolf-Rayet star, at just over 50,000 L☉. The most recent estimate is even lower, at just 42,700 L☉, based on the most recent analysis using Gaia DR2 data.

References

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  2. ↑ Sander, A.; Hamann, W. -R.; Todt, H. (2012). "The Galactic WC stars". Astronomy & Astrophysics. 540: A144. arXiv: 1201.6354 . Bibcode:2012A&A...540A.144S. doi:10.1051/0004-6361/201117830. S2CID   119182468.
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  4. ↑ Massey, Philip (2014). "A modern search for Wolf–Rayet stars in the Magellanic Clouds: First results". The Astrophysical Journal. 788 (1): 83. arXiv: 1404.7441 . Bibcode:2014ApJ...788...83M. doi:10.1088/0004-637X/788/1/83. S2CID   119177379.
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  8. ↑ 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 . Bibcode:2013A&A...559A..72T. doi:10.1051/0004-6361/201322155. S2CID   216079684.
  9. 1 2 3 Hainich, R.; Rühling, U.; Todt, H.; Oskinova, L. M.; Liermann, A.; Gräfener, G.; Foellmi, C.; Schnurr, O.; Hamann, W.-R. (May 2014). "The Wolf-Rayet stars in the Large Magellanic Cloud. A comprehensive analysis of the WN class". Astronomy and Astrophysics. 565: A27. arXiv: 1401.5474 . Bibcode:2014A&A...565A..27H. doi:10.1051/0004-6361/201322696. ISSN   0004-6361. S2CID   55123954.
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  15. ↑ Shenar, T.; Hainich, R.; Todt, H.; Sander, A.; Hamann, W.-R.; Moffat, A. F. J.; Eldridge, J. J.; Pablo, H.; Oskinova, L. M.; Richardson, N. D. (2016). "Wolf-Rayet stars in the Small Magellanic Cloud: II. Analysis of the binaries". Astronomy & Astrophysics. 1604: A22. arXiv: 1604.01022 . Bibcode:2016A&A...591A..22S. doi:10.1051/0004-6361/201527916. S2CID   119255408.
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  17. ↑ Sota, A.; Maíz Apellániz, J.; Morrell, N. I.; Barbá, R. H.; Walborn, N. R.; Gamen, R. C.; Arias, J. I.; Alfaro, E. J.; Oskinova, L. M. (2019). "The Galactic WN stars revisited. Impact of Gaia distances on fundamental stellar parameters". Astronomy & Astrophysics. A57: 625. arXiv: 1904.04687 . Bibcode:2019A&A...625A..57H. doi:10.1051/0004-6361/201834850. S2CID   104292503.
  18. ↑ Paul Crowther. "Galactic Wolf Rayet Catalogue" . Retrieved 2021-05-27.
  19. ↑ Lau, Ryan M.; Eldridge, J. J.; Hankins, Matthew J.; Lamberts, Astrid; Sakon, Itsuki; Williams, Peredur M. (2020-07-01). "Revisiting the Impact of Dust Production from Carbon-rich Wolf-Rayet Binaries". The Astrophysical Journal. 898 (1): 74. arXiv: 2006.08695 . Bibcode:2020ApJ...898...74L. doi: 10.3847/1538-4357/ab9cb5 . ISSN   0004-637X. S2CID   219708543.
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