| Mars' paleomagnetic field as the result of a single-hemisphere dynamo. | |
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MedLine Citation:
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PMID: 18818355 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Mars' crustal magnetic field was most likely generated by dynamo action in the planet's early history. Unexplained characteristics of the field include its strength, concentration in the southern hemisphere, and lack of correlation with any surface features except for the hemispheric crustal dichotomy. We used numerical dynamo modeling to demonstrate that the mechanisms proposed to explain crustal dichotomy formation can result in a single-hemisphere dynamo. This dynamo produces strong magnetic fields in only the southern hemisphere. This magnetic field morphology can explain why Mars' crustal magnetic field intensities are substantially stronger in the southern hemisphere without relying on any postdynamo mechanisms. |
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Authors:
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Sabine Stanley; Linda Elkins-Tanton; Maria T Zuber; E Marc Parmentier |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Science (New York, N.Y.) Volume: 321 ISSN: 1095-9203 ISO Abbreviation: Science Publication Date: 2008 Sep |
Date Detail:
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Created Date: 2008-09-26 Completed Date: 2008-10-06 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0404511 Medline TA: Science Country: United States |
Other Details:
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Languages: eng Pagination: 1822-5 Citation Subset: - |
Affiliation:
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Department of Physics, University of Toronto, Toronto, ON M5S1A7, Canada. stanley@physics.utoronto.ca |
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| Comments/Corrections | |
Comment In:
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Science. 2008 Sep 26;321(5897):1756-7
[PMID:
18818331
]
Science. 2008 Sep 26;321(5897):1784-5 [PMID: 18818346 ] |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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