SMSS J031300.36−670839.3: Difference between revisions
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'''SMSS J031300.36-670839.3''' is a star lying at the distance of 6000 [[light years]] from Earth. With an age of 13.7 billion years,<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> it is the oldest known star in the Universe.<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> The star's very low upper limit of iron of less than one ten millionth the iron level of the |
'''SMSS J031300.36-670839.3''' is a star lying in the [[Milky Way]] at the distance of 6000 [[light years]] from Earth. With an age of 13.7 billion years,<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> it is one the oldest known star in the Universe.<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> The star's very low upper limit of iron of less than one ten millionth the iron level of the Sun<ref name=kel/>, suggests that it is a second-generation star, having formed from the gas cloud enriched by one of the very first stars in the Universe.<ref name="mit"/> SMSS J031300.36-670839.3 also has a much higher carbon supply compared to iron, more than a thousand times greater.<ref name="mit"/> Apart from hydrogen, which appeared in the Big Bang the star also contains carbon, magnesium, and calcium whcih could have been formed in a low energy supernova.<ref name=kel/> |
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The star was discovered by a team led by [[Australian National University]] astronomers. The discovery was reported in ''[[Nature (journal)|Nature]]'' on February 9, 2014<ref>{{cite web | url =http://www. |
The star was discovered by a team led by [[Australian National University]] astronomers. The discovery was reported in ''[[Nature (journal)|Nature]]'' on February 9, 2014<ref>{{cite web | 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|publisher =''[[Nature (journal)|Nature]]''|doi=10.1038/nature12990|date=9 Feb 2014| accessdate =10 Feb 2014}}</ref> and indicates that the first generation of stars may not have been as powerful as previously thought.<ref name="mit"/> |
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The discovery was made possible by the [[SkyMapper]], a fully automated [[optical telescope]] at [[Siding Spring Observatory]] near [[Coonabarabran]], [[New South Wales]], Australia.<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> |
The discovery was made possible by the [[SkyMapper]], a fully automated [[optical telescope]] at [[Siding Spring Observatory]] near [[Coonabarabran]], [[New South Wales]], Australia.<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> |
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Revision as of 11:10, 10 February 2014
SMSS J031300.36-670839.3 is a star lying in the Milky Way at the distance of 6000 light years from Earth. With an age of 13.7 billion years,[1] it is one the oldest known star in the Universe.[2] The star's very low upper limit of iron of less than one ten millionth the iron level of the Sun[3], suggests that it is a second-generation star, having formed from the gas cloud enriched by one of the very first stars in the Universe.[2] SMSS J031300.36-670839.3 also has a much higher carbon supply compared to iron, more than a thousand times greater.[2] Apart from hydrogen, which appeared in the Big Bang the star also contains carbon, magnesium, and calcium whcih could have been formed in a low energy supernova.[3]
The star was discovered by a team led by Australian National University astronomers. The discovery was reported in Nature on February 9, 2014[4] and indicates that the first generation of stars may not have been as powerful as previously thought.[2]
The discovery was made possible by the SkyMapper, a fully automated optical telescope at Siding Spring Observatory near Coonabarabran, New South Wales, Australia.[3]
References
- ^ Larissa Nicholson (9 Feb 2014). "New star found by ANU reserchers may lead to universal truth". The Sydney Morning Herald. Retrieved 9 Feb 2014.
{{cite web}}: Italic or bold markup not allowed in:|publisher=(help) - ^ a b c d "Researchers identify one of the earliest stars in the universe". Massachusetts Institute of Technology. February 9, 2014. Retrieved 9 Feb 2014.
- ^ a b c Stefan Keller (10 February 2014). "The oldest star discovery tells much about the early universe". The Conversation Media Group. Retrieved 10 February 2014.
- ^ "A single low-energy, iron-poor supernova as the source of metals in the star SMSS J031300.36−670839.3". Nature. 9 Feb 2014. doi:10.1038/nature12990. Retrieved 10 Feb 2014.
{{cite web}}: Italic or bold markup not allowed in:|publisher=(help)