imported>Yumeto：Cat-a-lot：分类间移动：从Category:沃尔夫–拉叶星到Category:沃尔夫-拉叶星 using Cat-a-lot

2024-09-19T07:56:00Z

Cat-a-lot：分类间移动：从Category:沃尔夫–拉叶星到Category:沃尔夫-拉叶星 using Cat-a-lot

新页面

{{Starbox begin
| name=WR 104
}}
{{Starbox observe
| epoch=2000<ref name=simbad>{{Cite web| url=http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=wr104| accessdate=August 19, 2009| title=SIMBAD astronomical database| work=[[SIMBAD]]| publisher=Centre de Données astronomiques de Strasbourg| archive-date=2020-10-24| archive-url=https://web.archive.org/web/20201024014231/http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=wr104}}</ref>
| ra={{RA|18|02|04.07}}<ref name=simbad/>
| dec={{DEC|-23|37|41.2}}<ref name=simbad/>
| appmag_v=
| constell= Sagittarius
}}
{{Starbox character
| class= WCv+<ref name=simbad/>
}}
{{Starbox astrometry
| radial_v=
| prop_mo_ra=
| prop_mo_dec=
| parallax=
| p_error=
| parallax_footnote=
| absmag_v=
| dist_ly=8000
| dist_pc=2400
}}
{{Starbox detail
| mass=
| radius=
| luminosity=
| temperature=
| metal=
| rotation=
| gravity=
| age=
}}{{Starbox catalog
| names= V* V5097 Sgr, IRAS 17590-2337, MR 80, UCAC2 22296214, CSI-23-17590, IRC -20417, MSX6C G006.4432-00.4858, Ve 2-45, Had V82, JP11 5559, RAFGL 2048<ref name=simbad/>
}}
{{Starbox end}}
{{Sky|18|02|04.07|-|23|37|41.2|80000000}}
[[File:Wr104 sslkeck big.jpg|thumb|250px|WR 104]]
'''WR 104'''是一颗发现于1998年的[[沃爾夫-拉葉星]]，距离地球约8000光年。WR 104 是一个[[双星]]系统，伴星是 OB 型恒星。该系统的公转周期是220天；并且主星與伴星之间的恆星風交互作用產生了一個「風車狀」的螺旋噴發模式，影響範圍超過200[[天文單位]]<ref>{{Cite web| url=http://www.physics.usyd.edu.au/~gekko/pinwheel.html| accessdate=August 19, 2009| title=WR 104: The prototype Pinwheel Nebula| first=Peter| last=Tuthill| authorlink=| publisher=[[University of Sydney]]| archive-date=2022-03-29| archive-url=https://web.archive.org/web/20220329054007/http://www.physics.usyd.edu.au/~gekko/pinwheel.html}}</ref>。螺旋是由灰塵組成的，一般來說會阻擋來自 WR 104 的強烈輻射，而非其伴星的輻射。兩顆巨大恆星的恆星風交互作用的區域會將物質壓縮到足以形成灰塵，並且該系統的旋轉會造成螺旋狀結構<ref name=gekko>{{Cite web| url=http://www.physics.usyd.edu.au/~gekko/wr104.html| accessdate=August 19, 2009| title=The Twisted Tale of Wolf-Rayet 104 — First of the Pinwheel Nebulae| first=Peter| last=Tuthill| publisher=[[University of Sydney]]| archive-date=2018-11-26| archive-url=https://web.archive.org/web/20181126155407/http://www.physics.usyd.edu.au/~gekko/wr104.html| dead-url=no}}</ref>。

==對地球的可能威脅==
部分光學觀測指出 WR 104 的自轉軸與正對地球方向夾角在 16° 內<ref>{{Cite journal |last=Tuthill |first=Peter G. |last2=Monnier |first2=John D. |last3=Lawrance |first3=Nicholas |last4=Danchi |first4=William C. |last5=Owocki |first5=Stan P. |last6=Gayley |first6=Kenneth G. |date=2008-03 |title=The Prototype Colliding‐Wind Pinwheel WR 104 |url=https://iopscience.iop.org/article/10.1086/527286 |journal=The Astrophysical Journal |language=en |volume=675 |issue=1 |doi=10.1086/527286 |issn=0004-637X |access-date=2022-11-22 |archive-date=2021-10-28 |archive-url=https://web.archive.org/web/20211028040650/https://iopscience.iop.org/article/10.1086/527286 |dead-url=no }}</ref>。因為超新星爆炸時在恆星旋轉的兩極會產生噴流，這暗示了 WR104 變成[[超新星]]時對地球可能影響。雖然目前仍無法知道 WR104 何時可能變成超新星，但 WR 104 甚至可能在超新星爆炸時造成[[伽瑪射線暴]]<ref name=gekko/>。較新的光譜資料則指出 WR 104 的自轉軸可能與指向地球方向夾角在 30–40° 之間<ref>[http://news.discovery.com/space/gamma-ray-wolf-rayet.html Discovery News] {{Wayback|url=http://news.discovery.com/space/gamma-ray-wolf-rayet.html |date=20121120235624 }} August 4, 2009 Retrieved May 18, 2010</ref><ref>[http://www.universetoday.com/23342/wr-104-wont-kill-us-after-all/ Universe Today] {{Webarchive|url=https://archive.today/20120919074741/http://www.universetoday.com/23342/wr-104-wont-kill-us-after-all/ |date=2012-09-19 }} January 7, 2009 Retrieved September 3, 2010</ref>。
==參考資料==
{{Reflist}}

==外部連結==
*[http://blogs.discovermagazine.com/badastronomy/2008/03/03/wr-104-a-nearby-gamma-ray-burst/ WR 104: A nearby gamma-ray burst?] {{Wayback|url=http://blogs.discovermagazine.com/badastronomy/2008/03/03/wr-104-a-nearby-gamma-ray-burst/ |date=20080803180504 }}
*[http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=wr104 SIMBAD WR104 page] {{Wayback|url=http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=wr104 |date=20201024014231 }}
*{{WikiSky}}

[[Category:沃尔夫-拉叶星]]
[[Category:人馬座]]

WR 104 - 版本历史

imported>Yumeto：​Cat-a-lot：分类间移动：从Category:沃尔夫–拉叶星到Category:沃尔夫-拉叶星 using Cat-a-lot

imported>Yumeto：Cat-a-lot：分类间移动：从Category:沃尔夫–拉叶星到Category:沃尔夫-拉叶星 using Cat-a-lot