The dynamical structure of the habitable zone in the HD 38529, HD 168443 and HD 169830 systems

Author(s)
Balint Erdi, Rudolf Dvorak, Zs Sandor, Elke Pilat-Lohinger, Barbara Funk
Abstract

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.

Organisation(s)
Department of Astrophysics
External organisation(s)
Eötvös Loránd University Budapest
Journal
Monthly Notices of the Royal Astronomical Society
Volume
351
Pages
1043-1048
No. of pages
6
ISSN
0035-8711
Publication date
2004
Peer reviewed
Yes
Austrian Fields of Science 2012
103003 Astronomy
Portal url
https://ucrisportal.univie.ac.at/en/publications/45c34333-207b-4f4c-b59f-c63a1097b5b5