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The chaotic obliquity of MarsThe discovery (by Laskar, 1989, 1990) that the evolution of the solar system is chaotic, made in a numerical integration of the averaged secular approximation of the equations of motions for the planets, was confirmed by Sussman and Wisdom (1992) by direct numerical integration of the whole solar system. This paper presents results of direct integrations of the rotation of Mars in the chaotically evolved planetary system, made using the same model as that used by Sussman and Wisdom. The numerical integration shows that the obliquity of Mars undergoes large chaotic variations, which occur as the system evolves in the chaotic zone associated with a secular spin-orbit resonance.
Document ID
19930045545
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Touma, Jihad
(NASA Headquarters Washington, DC United States)
Wisdom, Jack
(MIT Cambridge, MA, United States)
Date Acquired
August 16, 2013
Publication Date
February 26, 1993
Publication Information
Publication: Science
Volume: 259
Issue: 5099
ISSN: 0036-8075
Subject Category
Lunar And Planetary Exploration
Accession Number
93A29542
Funding Number(s)
CONTRACT_GRANT: NAGW-706
CONTRACT_GRANT: NSF AST-88-57365
CONTRACT_GRANT: NSF MIP-90-01651
Distribution Limits
Public
Copyright
Other

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