| 词条 | R136b |
| 释义 |
| name=R136b}}{{Starbox image | image = | caption = R136b is the bright star towards the lower left. | credit = ESO }}{{Starbox observe | epoch=J2000.0 (ICRS) | equinox = J2000.0 | ra={{RA|05|38|42.74}}[1] | dec={{DEC|−69|06|03.78}}[1] | appmag_v=13.24[1] | constell=Dorado }}{{Starbox character | class= O4If/WN8[4] | b-v=−0.18[1] | u-b= | variable= }}{{Starbox astrometry | radial_v= | prop_mo_ra= | prop_mo_dec= | parallax= | p_error= | dist_ly = 163,000 | dist_pc = 49,970[2] | absmag_v= −7.31[4] }}{{Starbox detail | source=[3] | mass= 93 | radius= 22.3[4] | luminosity= 1,995,000 | temperature= 41,000 | metal= | rotation= | age_myr = 1.5 }}{{Starbox catalog | names= BAT99 111, RMC 136b, [HSH95] 9, [WO84] 4, NGC 2070 MH 637, [CHH92] 26, [P93] 985. }}{{Starbox reference | Simbad = RMC+136b | ARICNS = }}{{Starbox end}} R136b is a Wolf-Rayet star in the R136 cluster in the Large Magellanic Cloud.[4] It is one of the most massive and most luminous stars known. It is found in the dense R136 open cluster at the centre of NGC 2070 in the Tarantula Nebula. R136b has a transitional spectral type between an O class supergiant and a Wolf-Rayet star, with a mix of absorption and emission lines. Although it shows enhanced helium and nitrogen at its surface, it is still a very young star, still burning hydrogen in its core via the CNO cycle, and still effectively a main sequence object.[5] References1. ^1 2 3 {{cite journal|bibcode=2013A&A...558A.134D|title=The VLT-FLAMES Tarantula Survey. XI. A census of the hot luminous stars and their feedback in 30 Doradus|journal=Astronomy & Astrophysics|volume=558|pages=A134|author1=Doran|first1=E. I.|last2=Crowther|first2=P. A.|last3=De Koter|first3=A.|last4=Evans|first4=C. J.|last5=McEvoy|first5=C.|last6=Walborn|first6=N. R.|last7=Bastian|first7=N.|last8=Bestenlehner|first8=J. M.|last9=Gräfener|first9=G.|last10=Herrero|first10=A.|last11=Köhler|first11=K.|last12=Maíz Apellániz|first12=J.|last13=Najarro|first13=F.|last14=Puls|first14=J.|last15=Sana|first15=H.|last16=Schneider|first16=F. R. N.|last17=Taylor|first17=W. D.|last18=Van Loon|first18=J. Th.|last19=Vink|first19=J. S.|year=2013|doi=10.1051/0004-6361/201321824|arxiv = 1308.3412 }} {{Stars of Dorado}}2. ^{{cite journal|last=Pietrzyński|first=G|author2=D. Graczyk |author3=W. Gieren |author4=I. B. Thompson |author5=B. Pilecki |author6=A. Udalski |author7=I. Soszyński |display-authors=etal |title=An eclipsing-binary distance to the Large Magellanic Cloud accurate to two per cent|journal=Nature|date=7 March 2013|volume=495|issue=7439|pages=76–79|doi=10.1038/nature11878|pmid=23467166|arxiv = 1303.2063 |bibcode = 2013Natur.495...76P }} 3. ^1 2 {{cite journal|bibcode=2016MNRAS.458..624C|arxiv=1603.04994|title=The R136 star cluster dissected with Hubble Space Telescope/STIS. I. Far-ultraviolet spectroscopic census and the origin of He II λ1640 in young star clusters|journal=Monthly Notices of the Royal Astronomical Society|volume=458|issue=1|pages=624–659|author1=Crowther|first1=Paul A.|last2=Caballero-Nieves|first2=S. M.|last3=Bostroem|first3=K. A.|last4=Maíz Apellániz|first4=J.|last5=Schneider|first5=F. R. N.|last6=Walborn|first6=N. R.|last7=Angus|first7=C. R.|last8=Brott|first8=I.|last9=Bonanos|first9=A.|last10=De Koter|first10=A.|last11=De Mink|first11=S. E.|last12=Evans|first12=C. J.|last13=Gräfener|first13=G.|last14=Herrero|first14=A.|last15=Howarth|first15=I. D.|last16=Langer|first16=N.|last17=Lennon|first17=D. J.|last18=Puls|first18=J.|last19=Sana|first19=H.|last20=Vink|first20=J. S.|year=2016|doi=10.1093/mnras/stw273}} 4. ^1 {{Cite journal | doi = 10.1051/0004-6361/201322696| title = The Wolf-Rayet stars in the Large Magellanic Cloud| journal = Astronomy & Astrophysics| volume = 565| pages = A27| year = 2014| last1 = Hainich | first1 = R.| last2 = Rühling | first2 = U.| last3 = Todt | first3 = H.| last4 = Oskinova | first4 = L. M.| last5 = Liermann | first5 = A.| last6 = Gräfener | first6 = G.| last7 = Foellmi | first7 = C.| last8 = Schnurr | first8 = O.| last9 = Hamann | first9 = W. -R. | arxiv = 1401.5474| bibcode = 2014A&A...565A..27H}} 5. ^{{cite journal|bibcode=2010MNRAS.408..731C|title=The R136 star cluster hosts several stars whose individual masses greatly exceed the accepted 150Msolar stellar mass limit|journal=Monthly Notices of the Royal Astronomical Society|volume=408|issue=2|pages=731|author1=Crowther|first1=Paul A.|last2=Schnurr|first2=Olivier|last3=Hirschi|first3=Raphael|last4=Yusof|first4=Norhasliza|last5=Parker|first5=Richard J.|last6=Goodwin|first6=Simon P.|last7=Kassim|first7=Hasan Abu|year=2010|doi=10.1111/j.1365-2966.2010.17167.x|arxiv = 1007.3284 }} 7 : Stars in the Large Magellanic Cloud|Extragalactic stars|Tarantula Nebula|Wolf–Rayet stars|Astronomical objects discovered in 1979|Dorado (constellation)|Large Magellanic Cloud |
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