Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004mnras.351.1043e&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 351, Issue 3, pp. 1043-1048.
Astronomy and Astrophysics
Astronomy
23
Methods: Numerical: Celestial Mechanics: Planetary Systems
Scientific paper
The dynamical structure of the habitable zone in the multiple exoplanetary systems HD 38529, HD 168443 and HD 169830 is investigated. By using long-time numerical integration and fast chaos-detection methods, it is shown that the habitable zone of all three systems is mostly chaotic. There is a stable region between the two known planets only in the system HD 38529, near the inner edge of the habitable zone, where a third planet could exist. This region is stable for a wide range of orbital eccentricity and mass of the larger outer planet. The stability region is divided by higher-order mean motion resonances, which are studied in detail. It seems that higher-order resonances are important in exoplanetary systems due to the large planetary masses and large orbital eccentricities.
Dvorak Rudolf
Erdi Bálint
Funk Barbara
Pilat-Lohinger Elke
Sándor Zs.
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