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Add 1 book for verifiability (20250117sim)) #IABot (v2.0.9.5) (GreenC bot

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{{Starbox begin
|name=WR 134
}}
{{Starbox image
|image = [[File:WR-134.png|300px]]
|caption = 業餘天文學家查克·阿尤布（Chuck Ayoub） 使用[[哈伯太空望遠鏡]]以經典調色盤（[[H-α|Ha]]/OIII/SII） 拍攝的WR 134（中心下方最亮的白色星）。
}}

{{Starbox observe
|epoch=2000
|ra={{RA|20|10|14.193}}<ref name=hipparcos>{{cite journal|bibcode=2007A&A...474..653V|title=Validation of the new Hipparcos reduction|journal=Astronomy and Astrophysics|volume=474|issue=2|pages=653|author1=Van Leeuwen|first1=F.|year=2007|doi=10.1051/0004-6361:20078357|arxiv = 0708.1752 }}</ref>
|dec={{DEC|36|10|35.07}}<ref name=hipparcos/>
|appmag_v=8.08<ref name=ducati>{{cite journal|bibcode=2002yCat.2237....0D|title=VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system|journal=CDS/ADC Collection of Electronic Catalogues|volume=2237|author1=Ducati|first1=J. R.|year=2002}}</ref>
|constell=[[天鵝座]]
}}
{{Starbox character
|type=[[沃爾夫-拉葉星|沃夫-瑞葉]]
|class=WN6-s<ref name=hamann>{{cite arXiv|eprint=1904.04687|last1=Sota|first1=A.|title=The Galactic WN stars revisited. Impact of Gaia distances on fundamental stellar parameters|last2=Maíz Apellániz|first2=J.|last3=Morrell|first3=N. I.|last4=Barbá|first4=R. H.|last5=Walborn|first5=N. R.|last6=Gamen|first6=R. C.|last7=Arias|first7=J. I.|last8=Alfaro|first8=E. J.|last9=Oskinova|first9=L. M.|class=astro-ph.SR|year=2019}}</ref>
|b-v=0.00<ref name=ducati/>
|u-b=−0.44<ref name=ducati/>
|variable=[[大陵五型變星|大陵五]]<ref name=gcvs>{{cite journal|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)|journal=VizieR On-line Data Catalog: B/gcvs. Originally Published in: 2009yCat....102025S|volume=1|display-authors=etal|author1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}}</ref>
}}
{{Starbox astrometry
|radial_v=
|prop_mo_ra=−5.128<ref name=dr2/>
|prop_mo_dec=−8.323<ref name=dr2/>
|parallax=0.5418
|p_error=0.0308
|parallax_footnote=<ref name=dr2>{{cite DR2|2059146654767199872}}</ref>
|dist_pc=
|absmag_v=-5.09<ref name=hamann/>
}}
{{Starbox detail
|mass=18<ref name=hamann/>
|radius=5.25<ref name=hamann/>
|luminosity=407,000<ref name=hamann/>
|temperature=63,100<ref name=hamann/>
|metal=
|rotation=
|age=
}}
{{Starbox catalog
|names=天鵝座[[變星命名法|V1769]]、[[波恩星表|BD]]+35° 4001、[[HD星表|HD]] 191765、[[沃爾夫-拉葉星|WR]] 134、[[HIP星表|HIP]] 99377、[[SAO星表|SAO]] 69541
}}
{{Starbox reference ||Simbad=V1769+Cyg}}
{{Starbox end}}

'''WR 134'''位於[[天鵝座]]，是一顆距離[[地球]]大約6,000光年的[[變星]]，並被來自恆星自身的高速[[恆星風]]和強烈輻射吹出的微弱氣泡星雲包圍著的[[沃爾夫-拉葉星]]。它的半徑是[[太陽]]的5倍，但是由於表面的溫度超過{{val|63,000|ul=K|fmt=commas}}，導致[[太陽光度|光度]]是太陽的400,000倍。

WR 134 是1867年在[[天鵝座]]觀測到的3顆光譜在連續的譜帶中有強烈的[[發射線]]，而不是常見的[[吸收線]]組成。它們是天文學家[[夏爾·沃爾夫|沃夫]]和[[若爾日·拉葉|瑞葉]]發現的第一批外觀不尋常，並以發現著的名字命名的[[沃爾夫-拉葉星]]<ref>{{cite book|doi=10.1888/0333750888/4101|chapter=Wolf, Charles J E (1827-1918)|title=The Encyclopedia of Astronomy and Astrophysics|pages=4101|date=2001|isbn=0333750888|bibcode=2000eaa..bookE4101.|author1=Murdin|first1=P.}}</ref>。它是氮序列的沃夫-瑞葉星，同時發現的另外2顆（[[WR 135]]和[[WR 137]]）都是碳序列的成員，並且都有[[OB星|OB型]]的夥伴。WR 134的光譜中有N III和NIV的發射線，分別比NV的發射量高2倍和5倍，因此光譜型為WN6。 [[恆星光譜|光譜]]中也有強的HeII發射線和較弱的HeI和CIV發射線<ref>{{cite journal|bibcode=1966ApJ...143..770H|title=Spectral Classification of Wolf-Rayet Stars|url=https://archive.org/details/sim_astrophysical-journal_1966-03_143_3/page/n163|journal=Astrophysical Journal|volume=143|pages=770|author1=Hiltner|first1=W. A.|last2=Schild|first2=R. E.|year=1966|doi=10.1086/148556}}</ref>。

WR 134被歸類為[[大陵五型變星|大陵五型食變星]]，並被[[變星命名法|命名]]為天鵝座V1769，但是變光沒有很嚴謹的週期性，光度的變化在數小時到數天的時間尺度上。已經多次搜尋它的伴星；Morel報告了2.25天得主週期，但認為這些變化是由於{{link-en|自轉調制|rotational modulation}}，而不是伴星的影響<ref name=morel>{{Cite journal | doi = 10.1086/307250| title = A 2.3 Day Periodic Variability in the Apparently Single Wolf‐Rayet Star WR 134: Collapsed Companion or Rotational Modulation?| url = https://archive.org/details/sim_astrophysical-journal_1999-06-10_518_1/page/n431| year = 1999| last1 = Morel | first1 = T. | last2 = Marchenko | first2 = S. V. | last3 = Eenens | first3 = P. R. J. | last4 = Moffat | first4 = A. F. J. | last5 = Koenigsberger | first5 = G. | last6 = Antokhin | first6 = I. I. | last7 = Eversberg | first7 = T. | last8 = Tovmassian | first8 = G. H. | last9 = Hill | first9 = G. M. | last10 = Cardona | first10 = O. | last11 = St‐Louis | first11 = N. | journal = The Astrophysical Journal| volume = 518| pages = 428| bibcode = 1999ApJ...518..428M|arxiv = astro-ph/9901269 }}</ref>。魯斯塔莫夫（Rustamov）建議用K-M矮星伴星的1.887天軌道週期，但具有額外的光學變化<ref name=rustamov>{{Cite journal | doi = 10.1134/S1063772912100058| title = Spectral and photometric studies of the Wolf-Rayet star WR 134 = HD 191765| journal = Astronomy Reports| volume = 56| issue = 10| pages = 761| year = 2012| last1 = Rustamov | first1 = D. N.| last2 = Cherepashchuk | first2 = A. M.| bibcode = 2012ARep...56..761R}}</ref>。

從WR 134也檢測到硬和軟[[X射線]]，但來源沒有獲得充分的解釋。發射物不能與預期中的恆星溫度相匹配，也不能滿足{{link-en|星風互撞聯星|Colliding-wind binary}}。兩顆高溫恆星，和像是[[中子星]]或低溫矮星等任何緻密天體，都位於不太可能的軌道<ref name=skinner>{{Cite journal | doi = 10.1088/0004-6256/139/3/825| title = X-Ray Emission from Nitrogen-Type Wolf-Rayet Stars| year = 2010| last1 = Skinner | first1 = S. L. | last2 = Zhekov | first2 = S. A. | last3 = Güdel | first3 = M. | last4 = Schmutz | first4 = W. | last5 = Sokal | first5 = K. R. | journal = The Astronomical Journal| volume = 139| issue = 3| pages = 825| bibcode = 2010AJ....139..825S|arxiv = 0912.1326 }}</ref>。

WR 134距離WR135不到1度，它們被認為都在天鵝座OB3星協內，且與地球有大致相同的距離，因而有所關聯<ref name=gervais>{{cite journal|bibcode=1999AJ....118.2394G|title=A Large H I Shell surrounding the Wolf-Rayet Star HD 191765|url=https://archive.org/details/sim_astronomical-journal_1999-11_118_5/page/2394|journal=The Astronomical Journal|volume=118|issue=5|pages=2394|author1=Gervais|first1=Simon|last2=St-Louis|first2=Nicole|year=1999|doi=10.1086/301065|doi-access=free}}</ref>。當其中一顆或兩顆都在[[主序星|主序帶]]時，位於同一個氫殼中，認為被從[[星際物質]]中捲走。這個氫殼的寬度超過40秒差距，和有大約{{Solar mass|1,830|link=y}}的氫。目前還不清楚兩顆星中是哪一顆負有製造外殼的主要責任<ref name=sitnik>{{cite journal|bibcode=2009AstL...35..121S|title=Structure and kinematics of the interstellar medium around WR 134 and WR 135|journal=Astronomy Letters|volume=35|issue=2|pages=121|author1=Sitnik|first1=T. G.|last2=Lozinskaya|first2=T. A.|year=2009|doi=10.1134/S1063773709020066}}</ref>。

== 參考資料 ==
{{reflist}}

== 外部連結 ==
* {{APOD |date=21 June 2012 |title=WR 134 Ring Nebula}}
* [http://www.reinervogel.net/WR/WR_e.html Wolf Rayet shells] {{Wayback|url=http://www.reinervogel.net/WR/WR_e.html |date=20200810082241 }}
* [https://www.noao.edu/image_gallery/html/im1249.html NOAO page] {{Wayback|url=https://www.noao.edu/image_gallery/html/im1249.html |date=20200716212532 }}

{{Stars of Cygnus}}

[[Category:天鵝座]]
[[Category:沃尔夫-拉叶星]]
[[Category:以變星命名法命名的天體|天鵝座V1769]]
[[Category:波恩天體]]
[[Category:HD和HDE天體|191765]]
[[Category:大陵五變星]]
[[Category:HIP天體|099377]]

WR 134 - 版本历史

imported>InternetArchiveBot：​Add 1 book for verifiability (20250117sim)) #IABot (v2.0.9.5) (GreenC bot

imported>InternetArchiveBot：Add 1 book for verifiability (20250117sim)) #IABot (v2.0.9.5) (GreenC bot