Stellar archaeology: Difference between revisions
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[[File:Artist's impression of the central bulge of the Milky Way.jpg|thumb|Artist's conception of the Milky Way]] |
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'''Stellar archaeology''' is the study of the early history of the universe, based on its early composition.<ref name=HS>{{cite news|title=Stellar Archaeology Traces Milky Way's History|url=http://hubblesite.org/newscenter/archive/releases/2012/25/text/|accessdate=11 February 2014|newspaper=HubbleSite|date=30 May 2012}}</ref> This is done by observing the chemical abundances in the earliest stars in the universe, metal-poor, [[Population III]] stars, in order to unravel such processes as early star formation, [[nucleosynthesis]] in [[Stellar nucleosynthesis|stars]] and [[Supernova nucleosynthesis|supernovae]], and the formation processes of the [[galactic halo]].<ref>{{Citation | last = Frebel | first = A. | author-link = Anna Frebel | title = Stellar archaeology: Exploring the Universe with metal-poor stars (Ludwig Biermann Award Lecture 2009) | journal = Astronomische Nachrichten | volume = 331 | issue = 5 | pages = 474-488 | year = 2010 | bibcode = 2010AN....331..474F | doi = 10.1002/asna.201011362 |accessdate= 12 February 2014}}</ref><ref name=Nerlich>{{cite news|last=Nerlich|first=Steve|title=Astronomy Without A Telescope – Stellar Archaeology|url=http://www.universetoday.com/67316/astronomy-without-a-telescope-stellar-archaeology/|accessdate=11 February 2014|newspaper=Universe Today|date=26 June 2010}}</ref> The field has already discovered that the [[Milky Way]] cannibalizes surrounding [[dwarf galaxy|dwarf galaxies]], giving it a youthful appearance.<ref name=Brainard>{{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|accessdate=11 February 2014|newspaper=[[New York Times]]|date=10 February 2014}}</ref> |
'''Stellar archaeology''' is the study of the early history of the universe, based on its early composition.<ref name=HS>{{cite news|title=Stellar Archaeology Traces Milky Way's History|url=http://hubblesite.org/newscenter/archive/releases/2012/25/text/|accessdate=11 February 2014|newspaper=HubbleSite|date=30 May 2012}}</ref> This is done by observing the chemical abundances in the earliest stars in the universe, [[Metallicity|metal-poor]], [[Population III]] and [[Population II]] stars, in order to unravel such processes as early star formation, [[nucleosynthesis]] in [[Stellar nucleosynthesis|stars]] and [[Supernova nucleosynthesis|supernovae]], and the formation processes of the [[galactic halo]].<ref>{{Citation | last = Frebel | first = A. | author-link = Anna Frebel | title = Stellar archaeology: Exploring the Universe with metal-poor stars (Ludwig Biermann Award Lecture 2009) | journal = Astronomische Nachrichten | volume = 331 | issue = 5 | pages = 474-488 | year = 2010 | bibcode = 2010AN....331..474F | doi = 10.1002/asna.201011362 |accessdate= 12 February 2014}}</ref><ref name=Nerlich>{{cite news|last=Nerlich|first=Steve|title=Astronomy Without A Telescope – Stellar Archaeology|url=http://www.universetoday.com/67316/astronomy-without-a-telescope-stellar-archaeology/|accessdate=11 February 2014|newspaper=Universe Today|date=26 June 2010}}</ref> The field has already discovered that the [[Milky Way]] cannibalizes surrounding [[dwarf galaxy|dwarf galaxies]], giving it a youthful appearance.<ref name=Brainard>{{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|accessdate=11 February 2014|newspaper=[[New York Times]]|date=10 February 2014}}</ref> |
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==References== |
==References== |
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Revision as of 20:00, 12 February 2014
Stellar archaeology is the study of the early history of the universe, based on its early composition.[1] This is done by observing the chemical abundances in the earliest stars in the universe, metal-poor, Population III and Population II stars, in order to unravel such processes as early star formation, nucleosynthesis in stars and supernovae, and the formation processes of the galactic halo.[2][3] The field has already discovered that the Milky Way cannibalizes surrounding dwarf galaxies, giving it a youthful appearance.[4]
References
- ^ "Stellar Archaeology Traces Milky Way's History". HubbleSite. 30 May 2012. Retrieved 11 February 2014.
- ^ Frebel, A. (2010), "Stellar archaeology: Exploring the Universe with metal-poor stars (Ludwig Biermann Award Lecture 2009)", Astronomische Nachrichten, 331 (5): 474–488, Bibcode:2010AN....331..474F, doi:10.1002/asna.201011362
{{citation}}:|access-date=requires|url=(help) - ^ Nerlich, Steve (26 June 2010). "Astronomy Without A Telescope – Stellar Archaeology". Universe Today. Retrieved 11 February 2014.
- ^ Brainard, Curtis (10 February 2014). "The Archaeology of the Stars". New York Times. Retrieved 11 February 2014.