Mathematics – Probability
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja....12345e&link_type=abstract
EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #12345
Mathematics
Probability
Scientific paper
In two studies by Laskar and Robuterl (1993) and Laskar et al. (1993) the obliquity evolution of the major planets of the Solar System was investigated. It was found that the terrestrial planets have a high probability of encountering chaotic regimes and thereby initiating large variations in their obliquities. Such variations are expected to have had profound implications for the long-term atmosphere and surface conditions of the planets. The recent discovery of an extra solar planetary system (47 Uma), with a habitable zone that could potentially harbor small terrestrial planets (e.g. Jones and Sleep, 2002 and Thébault et al. 2002), have raised questions about the conditions for habitability in such a system (e.g. Franck et al. 2001 and Cuntz et al. 2003). In that context the effects of the obliquity evolution might be of importance and has been numerically simulated for hypothetical planets located in the habitable zone of 47 Uma. The results found will be presented and discussed in detail. Cuntz et al. 2003. Icarus in press. - Franck et al. 2001. Naturwissenschaften 88, 416. - Jones and Sleep 2002. A&A 393, 1015. - Laskar and Robuterl 1993. Nature 361, 608. - Laskar et al. 1993. Nature 361, 615. - Thébault et al. 2002. A&A 384, 594.
Erikson Anders
Skoglöv E.
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