2023年3月22日 (三) 11:35 imported>Phyblas

2023-03-22T11:35:14Z

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[[File:Artist impression of the protoplanetary disc surrounding the young star MWC 480.webm|thumb|藝術家想像在MWC 480周圍的原行星盤。]]

'''MWC 480'''是一顆年輕的恆星，距離大約455光年，質量大約是太陽的兩倍，位置在[[金牛座]]的恆星形成區<ref>{{cite web |url=http://arxiv.org/pdf/0911.5457v2 |format=PDF |title=The Disk Population of the Taurus Star-Forming Region |author=K. L. Luhman |display-authors=etal |publisher=Arxiv.org |accessdate=2015-04-08 |archive-date=2019-10-18 |archive-url=https://web.archive.org/web/20191018095703/https://arxiv.org/pdf/0911.5457v2.pdf |dead-url=no }}</ref>。它的名稱是源自威爾遜山有明亮氫譜線的A和B型恆星目錄（Mount Wilson Catalog of B and A stars with bright hydrogen lines in their spectra）<ref>{{cite web |url=http://www.circumstellardisks.org/show.php?id=101 |title=Catalog of Resolved Circumstellar Disks |work=Circumstellardisks.org |accessdate=2015-04-08 |deadurl=yes |archiveurl=https://web.archive.org/web/20150205014851/http://circumstellardisks.org/show.php?id=101 |archivedate=2015-02-05 }}</ref>。

MWC 480 是有著X射線輻射的典型前主序[[赫比格Ae/Be星]]，但光電吸收多了一個數量級<ref>{{cite web|url=http://iopscience.iop.org/0004-637X/719/2/1565|title=LOCATING THE ACCRETION FOOTPRINT ON A HERBIG Ae STAR: MWC 480|author=|work=IOP.org |accessdate=2015-04-08}}</ref>。它有一個被原行星盤環繞的氣體殼層。天文學家使用ALMA（阿塔卡馬大型毫米及次毫米波陣列）已經發現環繞著MWC 480的原行星盤含有大量的複雜碳基分子[[乙腈]]（CH<sub>3</sub>CN）<ref>{{cite web|url=http://www.eso.org/public/news/eso1513/|title=Complex Organic Molecules Discovered in Infant Star System|author=|work=Eso.org|accessdate=2015-04-08|archive-date=2020-11-08|archive-url=https://web.archive.org/web/20201108174118/https://www.eso.org/public/news/eso1513/|dead-url=no}}</ref>，在盤中也發現了氰化氫（HCN）<ref>{{cite web|url=http://www.science20.com/news_articles/complex_organic_molecules_discovered_around_star_mwc_480-154667|title=Complex Organic Molecules Discovered Around Star MWC 480|work=Science 2.0|accessdate=2015-04-08|archive-date=2016-03-04|archive-url=https://web.archive.org/web/20160304102710/http://www.science20.com/news_articles/complex_organic_molecules_discovered_around_star_mwc_480-154667|dead-url=no}}</ref>；但尚未見檢測到行星形成的跡象。

== 參考資料 ==
[[File:The sky around the young star MWC 480.jpg|thumb|right|年輕恆星MWC 480與周圍的星空。]]

{{Reflist}}

[[Category:金牛座]]
[[Category:恆星]]

MWC 480 - 版本历史

2023年3月22日 (三) 11:35 imported>Phyblas