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Multi-planet systems explored: the case of the HD34445 system revisited

Published online by Cambridge University Press:  16 October 2024

Nikolaos Georgakarakos Open the ORCID record for Nikolaos Georgakarakos [Opens in a new window]  and
Ian Dobbs-Dixon
Nikolaos Georgakarakos*
Affiliation:
Division of Science, New York University Abu Dhabi, PO Box 129188, Abu Dhabi, United Arab Emirates Center for Astrophysics and Space Science (CASS) New York University Abu Dhabi, PO Box 129188, Abu Dhabi, United Arab Emirates
Ian Dobbs-Dixon*
Affiliation:
Division of Science, New York University Abu Dhabi, PO Box 129188, Abu Dhabi, United Arab Emirates Center for Astrophysics and Space Science (CASS) New York University Abu Dhabi, PO Box 129188, Abu Dhabi, United Arab Emirates
*
email: [email protected]
email: [email protected]
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Abstract

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HD34445 is a system that consists of a star and six planets. In some previous work, we investigated the dynamical stability of the system by means of numerical simulations. Here, we explore the system further by carrying out additional numerical experiments. A total of 100000 simulations confirm previous findings of the stability status of the system at the 1σ and 99% c.i. level. We find that only 2.7% of the systems with parameters varied within 1σ from the mean were unstable, while that percentage rose to about 28% for systems with parameter values taken within the 99% c.i. These preliminary results are presented and discussed herein.

Keywords

chaosmethods: numericaltechniques: radial velocitiescelestial mechanicsplanets and satellites: dynamical evolution and stability
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S382: Complex Planetary Systems II: Latest Methods for an Interdisciplinary Approach , December 2022 , pp. 101 - 102
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Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

References

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