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The Planetary Magnetic Dynamo Effect on Atmospheric Protection of Early Earth and Mars

Dehant, V. and Lammer, H. and Kulikov, Y. N. and Grießmeier, J.-M. and Breuer, D. and Verhoeven, O. and Karatekin, Ö. and Van Hoolst, T. and Korablev, O. and Lognonné, P. (2006) The Planetary Magnetic Dynamo Effect on Atmospheric Protection of Early Earth and Mars. Space Science Reviews, 129 (1-3), pp. 279-300. Springer. DOI: 10.1007/s11214-007-9163-9. ISSN 0038-6308.

Full text not available from this repository.

Abstract

In light of assessing the habitability of Mars, we examine the impact of the magnetic field on the atmosphere. When there is a magnetic field, the atmosphere is protected from erosion by solar wind. The magnetic field ensures the maintenance of a dense atmosphere, necessary for liquid water to exist on the surface of Mars. We also examine the impact of the rotation of Mars on the magnetic field. When the magnetic field of Mars ceased to exist (about 4 Gyr ago), atmospheric escape induced by solar wind began. We consider scenarios which could ultimately lead to a decrease of atmospheric pressure to the presently observed value of 7 mbar: a much weaker early martian magnetic field, a late onset of the dynamo, and high erosion rates of a denser early atmosphere.

Document Type:Article
Additional Information:Online-Veröffentlichung
Title:The Planetary Magnetic Dynamo Effect on Atmospheric Protection of Early Earth and Mars
Authors:
AuthorsInstitution or Email of Authors
Dehant, V.Royal Observatory of Belgium, Brussels, Belgium
Lammer, H.Space Research Institute, Austrian Academy of Sciences, Graz, Austria
Kulikov, Y. N.Polar Geophysical Institute, Russian Academy of Sciences, Apatity, Russia
Grießmeier, J.-M.Observatoire de Paris, Paris, France
Breuer, D.UNSPECIFIED
Verhoeven, O.Royal Observatory of Belgium, Brussels, Belgium
Karatekin, Ö.Royal Observatory of Belgium, Brussels, Belgium
Van Hoolst, T.Royal Observatory of Belgium, Brussels, Belgium
Korablev, O.Space Research Institute, Moscow, Russia
Lognonné, P.Institut de Physique du Globe de Paris, Paris, France
Date:2006
Journal or Publication Title:Space Science Reviews
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:129
DOI:10.1007/s11214-007-9163-9
Page Range:pp. 279-300
Publisher:Springer
ISSN:0038-6308
Status:Published
Keywords: Habitability; Rotation; Magnetic field; Atmospheric escape
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Vergleichende Planetologie (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Physics
Deposited By: Stefanie Musiol
Deposited On:14 Jan 2008
Last Modified:15 Jan 2010 00:21

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