SMSS J031300.36-670839.3：修订间差异

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'''SMSS J031300.36-670839.3'''（简称'''SM0313'''<ref>{{cite web |url=http://news.cnet.com/8301-17938_105-57618634-1/astronomers-track-down-oldest-known-star-in-the-universe/ |title=Astronomers track down oldest known star in the universe |last=Kooser |first=Amanda |date=February 10, 2014 |website=[[CNET]] |publisher=CBS Interactive Inc. |accessdate=February 10, 2014}}</ref>）是一颗位于[[银河系]]的恒星，距离[[地球]]6000[[光年]]。SM0313的年龄约为136亿年，<ref>{{cite web | url =http://www.smh.com.au/technology/sci-tech/new-star-found-by-anu-reserchers-may-lead-to-universal-truth-20140209-32ae2.html| title =New star found by ANU reserchers may lead to universal truth |publisher =''[[The Sydney Morning Herald]]''| author=Larissa Nicholson|date=9 Feb 2014<!-- UTC date for consistency, 10 February Australian time in the source -->|accessdate = 9 Feb 2014}}</ref> 是人类已知宇宙最老的恒星之一。<ref name="mit">{{cite web | url =http://web.mit.edu/newsoffice/2014/researchers-identify-one-of-the-earliest-stars-in-the-universe-0209.html| title =Researchers identify one of the earliest stars in the universe |publisher =[[Massachusetts Institute of Technology]]|date=February 9, 2014| accessdate =9 Feb 2014 }}</ref><ref name="NYT-20140210">{{cite news |last=Brainard |first=Curtis |title=The Archaeology of the Stars |url=http://www.nytimes.com/2014/02/11/science/space/the-archaeology-of-the-stars.html |date=February 10, 2014 |work=[[New York Times]] |accessdate=February 10, 2014 }}</ref> 恒星的铁元素含量上限非常低，不及太阳的百万分之一，<ref name=kel/> 这意味着它是一颗[[金屬量#第二星族星|第二星族星]]，由最古老的的第一代恒星死亡释出的气体云聚集而成。<ref name="mit"/> SMSS J0313有较高的碳含量，是铁含量的1000倍。<ref name="mit"/> 除了形成于[[大爆炸]]的氢元素外，恒星还含有碳、镁和钙元素灯，可能形成于低能量的超新星爆炸。<ref name=kel/>
'''SMSS J031300.36-670839.3'''（简称'''SM0313'''<ref>{{cite web |url=http://news.cnet.com/8301-17938_105-57618634-1/astronomers-track-down-oldest-known-star-in-the-universe/ |title=Astronomers track down oldest known star in the universe |last=Kooser |first=Amanda |date=February 10, 2014 |website=[[CNET]] |publisher=CBS Interactive Inc. |accessdate=February 10, 2014}}</ref>）是一颗位于[[银河系]]的恒星，距离[[地球]]6000[[光年]]。SM0313的年龄约为136亿年，<ref>{{cite web | url =http://www.smh.com.au/technology/sci-tech/new-star-found-by-anu-reserchers-may-lead-to-universal-truth-20140209-32ae2.html| title =New star found by ANU reserchers may lead to universal truth |publisher =''The Sydney Morning Herald''| author=Larissa Nicholson|date=9 Feb 2014<!-- UTC date for consistency, 10 February Australian time in the source -->|accessdate = 9 Feb 2014}}</ref> 是人类已知宇宙最老的恒星之一。<ref name="mit">{{cite web | url =http://web.mit.edu/newsoffice/2014/researchers-identify-one-of-the-earliest-stars-in-the-universe-0209.html| title =Researchers identify one of the earliest stars in the universe |publisher =Massachusetts Institute of Technology|date=February 9, 2014| accessdate =9 Feb 2014 }}</ref><ref name="NYT-20140210">{{cite news |last=Brainard |first=Curtis |title=The Archaeology of the Stars |url=http://www.nytimes.com/2014/02/11/science/space/the-archaeology-of-the-stars.html |date=February 10, 2014 |work=[[New York Times]] |accessdate=February 10, 2014 }}</ref> 恒星的铁元素含量上限非常低，不及太阳的百万分之一，<ref name=kel>{{cite web |url =http://theconversation.com/the-oldest-star-discovery-tells-much-about-the-early-universe-22944 |title =The oldest star discovery tells much about the early universe |last =Stefan Keller|first = |date =10 February 2014|work = |publisher =The Conversation Media Group|accessdate =10 February 2014}}</ref> 这意味着它是一颗[[金屬量#第二星族星|第二星族星]]，由最古老的的第一代恒星死亡释出的气体云聚集而成。<ref name="mit"/> SMSS J0313有较高的碳含量，是铁含量的1000倍。<ref name="mit"/> 除了形成于[[大爆炸]]的氢元素外，恒星还含有碳、镁和钙元素灯，可能形成于低能量的超新星爆炸。<ref name=kel/>

SMSS J031300.36-670839.3由[[澳大利亞國立大學]]天文学家发现，<ref name="NYT-20140210" /> 研究结果于2014年2月9日发表在《自然 (杂志)|自然》上。<ref>{{cite journal| url =http://www.nature.com/nature/journal/vaop/ncurrent/full/nature12990.html| title =A single low-energy, iron-poor supernova as the source of metals in the star SMSS J031300.36−670839.3| journal =Nature|publisher =''[Nature''|arxiv=1402.1517|doi=10.1038/nature12990|date=9 Feb 2014| accessdate =10 Feb 2014| last1 =Keller| first1 =S. C.| last2 =Bessell| first2 =M. S.| last3 =Frebel| first3 =A.| last4 =Casey| first4 =A. R.| last5 =Asplund| first5 =M.| last6 =Jacobson| first6 =H. R.| last7 =Lind| first7 =K.| last8 =Norris| first8 =J. E.| last9 =Yong| first9 =D.| last10 =Heger| first10 =A.| last11 =Magic| first11 =Z.| last12 =Da Costa| first12 =G. S.| last13 =Schmidt| first13 =B. P.| last14 =Tisserand| first14 =P.}}</ref> SMSS J0313的发现意味着第一代恒星的超新星爆炸可能并不如之前想象中的猛烈。<ref name="mit"/>


==参考资料==
==参考资料==

2014年2月11日 (二) 02:42的版本

SMSS J031300.36-670839.3（简称SM0313[1]）是一颗位于银河系的恒星，距离地球6000光年。SM0313的年龄约为136亿年，[2] 是人类已知宇宙最老的恒星之一。[3][4] 恒星的铁元素含量上限非常低，不及太阳的百万分之一，[5] 这意味着它是一颗第二星族星，由最古老的的第一代恒星死亡释出的气体云聚集而成。[3] SMSS J0313有较高的碳含量，是铁含量的1000倍。[3] 除了形成于大爆炸的氢元素外，恒星还含有碳、镁和钙元素灯，可能形成于低能量的超新星爆炸。[5]

SMSS J031300.36-670839.3由澳大利亞國立大學天文学家发现，[4] 研究结果于2014年2月9日发表在《自然 (杂志)|自然》上。[6] SMSS J0313的发现意味着第一代恒星的超新星爆炸可能并不如之前想象中的猛烈。[3]

参考资料

  1. ^ Kooser, Amanda. Astronomers track down oldest known star in the universe. CNET. CBS Interactive Inc. February 10, 2014 [February 10, 2014]. 
  2. ^ Larissa Nicholson. New star found by ANU reserchers may lead to universal truth. The Sydney Morning Herald. 9 Feb 2014 [9 Feb 2014]. 
  3. ^ 3.0 3.1 3.2 3.3 Researchers identify one of the earliest stars in the universe. Massachusetts Institute of Technology. February 9, 2014 [9 Feb 2014]. 
  4. ^ 4.0 4.1 Brainard, Curtis. The Archaeology of the Stars. New York Times. February 10, 2014 [February 10, 2014]. 
  5. ^ 5.0 5.1 Stefan Keller. The oldest star discovery tells much about the early universe. The Conversation Media Group. 10 February 2014 [10 February 2014]. 
  6. ^ Keller, S. C.; Bessell, M. S.; Frebel, A.; Casey, A. R.; Asplund, M.; Jacobson, H. R.; Lind, K.; Norris, J. E.; Yong, D.; Heger, A.; Magic, Z.; Da Costa, G. S.; Schmidt, B. P.; Tisserand, P. A single low-energy, iron-poor supernova as the source of metals in the star SMSS J031300.36−670839.3. Nature ([Nature). 9 Feb 2014 [10 Feb 2014]. arXiv:1402.1517 可免费查阅. doi:10.1038/nature12990. 
取自“https://zh.wikipedia.org/w/index.php?title=SMSS_J031300.36-670839.3&oldid=30143866”