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鹿豹座MY:修订间差异

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'''鹿豹座MY'''('''MY Camelopardalis''',縮寫'''MY Cam'''),是位於[[疏散星團]][[阿里坎特1]](Alicante 1)內的一組[[聯星]],在天球上位於[[鹿豹座]],距離地球約{{convert|13000|ly|pc|abbr=on|lk=on}}。它是已知質量最巨大的聯星系統之一<ref name=NatGeo-2014-12-09> {{cite news |url= http://news.nationalgeographic.com/news/2014/12/141209-starstruck-monster-star-merger-space-astronomy-science/ |title= Astronomers Spy Monster Star Merger on the Move |author= Andrew Fazekas |date= 9 December 2014 }} </ref>。鹿豹座MY是星團阿里坎特1中最明亮的成員星<ref name=ScienceDaily-2014-12-05> {{cite news |url= http://www.sciencedaily.com/releases/2014/12/141205093754.htm |title= Astronomers observe two stars so close to each other that they will end up merging into a supermassive star |date= 5 December 2014 |publisher= ScienceDaily |author= Asociación RUVID }} </ref>。
'''鹿豹座MY'''('''MY Camelopardalis''',縮寫'''MY Cam'''),是位於[[疏散星團]][[阿里坎特1]](Alicante 1)內的一組[[聯星]],在天球上位於[[鹿豹座]],距離地球約{{convert|13000|ly|pc|abbr=on|lk=on}}。它是已知質量最巨大的聯星系統之一<ref name=NatGeo-2014-12-09>{{cite news |url= http://news.nationalgeographic.com/news/2014/12/141209-starstruck-monster-star-merger-space-astronomy-science/ |title= Astronomers Spy Monster Star Merger on the Move |author= Andrew Fazekas |date= 9 December 2014 |accessdate= 2015-03-23 |archive-date= 2015-03-19 |archive-url= https://web.archive.org/web/20150319031559/http://news.nationalgeographic.com/news/2014/12/141209-starstruck-monster-star-merger-space-astronomy-science/ |dead-url= no }}</ref>。鹿豹座MY是星團阿里坎特1中最明亮的成員星<ref name=ScienceDaily-2014-12-05>{{cite news |url= http://www.sciencedaily.com/releases/2014/12/141205093754.htm |title= Astronomers observe two stars so close to each other that they will end up merging into a supermassive star |date= 5 December 2014 |publisher= ScienceDaily |author= Asociación RUVID |accessdate= 2015-03-23 |archive-date= 2015-03-22 |archive-url= https://web.archive.org/web/20150322010237/http://www.sciencedaily.com/releases/2014/12/141205093754.htm |dead-url= no }}</ref>。


==概要==
==概要==
鹿豹座MY由兩顆質量分別為32和38倍[[太陽質量]]的恆星組成<ref name="Phys.org-2014-12-06"> {{cite web |url= http://phys.org/news/2014-12-astronomers-stars-merging-supermassive-star.html |title= Astronomers observe two stars so close to each other that they will end up merging into a supermassive star |date= 6 December 2014 |publisher= Phys.org |accessdate= 6 December 2014 }} </ref>,是[[密接聯星]],也是[[食雙星]]。兩者的軌道週期為1.2日,軌道速度為1000000 km/h<ref name=NatGeo-2014-12-09/>。這兩顆恆星大約在200萬年前形成<ref name=Independent141210> {{cite web |url= http://www.independent.co.uk/news/science/two-huge-stars-are-colliding-in-space--and-might-soon-join-in-a-huge-explosion-that-will-shed-light-on-the-beginning-of-the-universe-9915875.html |title= Two huge stars are colliding in space — and might soon join in a huge explosion that will shed light on the beginning of the universe |date= 10 December 2014 |publisher= [[The Independent]] |accessdate= 10 December 2014 }} </ref><ref name="10.1051/0004-6361/201424345"> {{cite journal|url=http://www.aanda.org/10.1051/0004-6361/201424345|title=MY Camelopardalis, a very massive merger progenitor|journal=Astronomy & Astrophysics|volume=572|date=2014-12-01|issn=0004-6361|language=en|accessdate=2018-04-02|doi=10.1051/0004-6361/201424345|author=J. Lorenzo, I. Negueruela, A. K. F. Val Baker, M. García, S. Simón-Díaz, P. Pastor, M. Méndez Majuelos}} </ref>。
鹿豹座MY由兩顆質量分別為32和38倍[[太陽質量]]的恆星組成<ref name="Phys.org-2014-12-06">{{cite web |url= http://phys.org/news/2014-12-astronomers-stars-merging-supermassive-star.html |title= Astronomers observe two stars so close to each other that they will end up merging into a supermassive star |date= 6 December 2014 |publisher= Phys.org |accessdate= 6 December 2014 |archive-date= 2015-04-24 |archive-url= https://web.archive.org/web/20150424040202/http://phys.org/news/2014-12-astronomers-stars-merging-supermassive-star.html |dead-url= no }}</ref>,是[[密接聯星]],也是[[食雙星]]。兩者的軌道週期為1.2日,軌道速度為1000000 km/h<ref name=NatGeo-2014-12-09/>。這兩顆恆星大約在200萬年前形成<ref name=Independent141210>{{cite web |url= http://www.independent.co.uk/news/science/two-huge-stars-are-colliding-in-space--and-might-soon-join-in-a-huge-explosion-that-will-shed-light-on-the-beginning-of-the-universe-9915875.html |title= Two huge stars are colliding in space — and might soon join in a huge explosion that will shed light on the beginning of the universe |date= 10 December 2014 |publisher= [[The Independent]] |accessdate= 10 December 2014 |archive-date= 2015-04-05 |archive-url= https://web.archive.org/web/20150405040713/http://www.independent.co.uk/news/science/two-huge-stars-are-colliding-in-space--and-might-soon-join-in-a-huge-explosion-that-will-shed-light-on-the-beginning-of-the-universe-9915875.html |dead-url= no }}</ref><ref name="10.1051/0004-6361/201424345"> {{cite journal|url=http://www.aanda.org/10.1051/0004-6361/201424345|title=MY Camelopardalis, a very massive merger progenitor|journal=Astronomy & Astrophysics|volume=572|date=2014-12-01|issn=0004-6361|language=en|accessdate=2018-04-02|doi=10.1051/0004-6361/201424345|author=J. Lorenzo, I. Negueruela, A. K. F. Val Baker, M. García, S. Simón-Díaz, P. Pastor, M. Méndez Majuelos}} </ref>。


鹿豹座MY的演化趨勢將是兩顆恆星合併為一顆質量達到太陽60倍的巨大恆星。這被認為是極高質量的單一恆星行成的其中一個方式<ref name=NatGeo-2014-12-09/>。
鹿豹座MY的演化趨勢將是兩顆恆星合併為一顆質量達到太陽60倍的巨大恆星。這被認為是極高質量的單一恆星行成的其中一個方式<ref name=NatGeo-2014-12-09/>。

2020年9月23日 (三) 00:43的版本

MY Camelopardalis
觀測資料
曆元 J2000.0 [1]
星座 鹿豹座
星官
赤經 03h 59m 18.2863s [1]
赤緯 +57° 14′ 13.673″ [1]
視星等(V)
天体测定
距离13,000 [2] ly
(4,000 [2] pc)
其他命名
MY Camelopardalis, MY Cam,[1] Alicante 1 NM 693,[1] Alicante 1-693, 2MASS J03591829+5714137 [1]

鹿豹座MYMY Camelopardalis,縮寫MY Cam),是位於疏散星團阿里坎特1(Alicante 1)內的一組聯星,在天球上位於鹿豹座,距離地球約13,000 ly(4,000 pc)。它是已知質量最巨大的聯星系統之一[2]。鹿豹座MY是星團阿里坎特1中最明亮的成員星[3]

概要

鹿豹座MY由兩顆質量分別為32和38倍太陽質量的恆星組成[4],是密接聯星,也是食雙星。兩者的軌道週期為1.2日,軌道速度為1000000 km/h[2]。這兩顆恆星大約在200萬年前形成[5][6]

鹿豹座MY的演化趨勢將是兩顆恆星合併為一顆質量達到太陽60倍的巨大恆星。這被認為是極高質量的單一恆星行成的其中一個方式[2]

天文學家最初發現鹿豹座MY時把它當成單一恆星的變星,而非聯星系統[2]。2004年時鹿豹座MY才被確認是聯星系統[3]

參考資料

  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 V* MY Cam -- Ellipsoidal variable Star. SIMBAD. [2014-12-12]. 
  2. ^ 2.0 2.1 2.2 2.3 2.4 2.5 Andrew Fazekas. Astronomers Spy Monster Star Merger on the Move. 9 December 2014 [2015-03-23]. (原始内容存档于2015-03-19). 
  3. ^ 3.0 3.1 Asociación RUVID. Astronomers observe two stars so close to each other that they will end up merging into a supermassive star. ScienceDaily. 5 December 2014 [2015-03-23]. (原始内容存档于2015-03-22). 
  4. ^ Astronomers observe two stars so close to each other that they will end up merging into a supermassive star. Phys.org. 6 December 2014 [6 December 2014]. (原始内容存档于2015-04-24). 
  5. ^ Two huge stars are colliding in space — and might soon join in a huge explosion that will shed light on the beginning of the universe. The Independent. 10 December 2014 [10 December 2014]. (原始内容存档于2015-04-05). 
  6. ^ J. Lorenzo, I. Negueruela, A. K. F. Val Baker, M. García, S. Simón-Díaz, P. Pastor, M. Méndez Majuelos. MY Camelopardalis, a very massive merger progenitor. Astronomy & Astrophysics. 2014-12-01, 572 [2018-04-02]. ISSN 0004-6361. doi:10.1051/0004-6361/201424345 (英语).