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Science 26 September 2008:
Vol. 321. no. 5897, pp. 1784 - 1785
DOI: 10.1126/science.1162874
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Perspectives

PLANETARY SCIENCE:
The Past Martian Dynamo

Benoit Langlais1 and Hagay Amit2

Numerical dynamo modeling studies may explain the observation that strong magnetic fields are only found in Mars' southern hemisphere.

1Laboratoire de Planétologie et Géodynamique, CNRS UMR 6112, Université de Nantes, 44322 Nantes cedex 3, France. E-mail: benoit.langlais{at}univ-nantes.fr

2Équipe de Géomagnétisme, Institut de Physique du Globe de Paris, CNRS UMR 7154, 75252 Paris cedex 5, France. E-mail: hagay{at}ipgp.jussieu.fr

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Science. ISSN 0036-8075 (print), 1095-9203 (online)