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Secular Resonances and Terrestrial Planet Formation in Planetary Systems with Multiple Stars

Published online by Cambridge University Press:  16 October 2024

Michael Andrews  and
Nader Haghighipour Open the ORCID record for Nader Haghighipour [Opens in a new window]
Michael Andrews
Affiliation:
Institute for Astronomy, University of Hawaii-Manoa, Honolulu, Hawaii, USA
Nader Haghighipour*
Affiliation:
Institute for Astronomy, University of Hawaii-Manoa, Honolulu, Hawaii, USA Planetary Science Institute, Honolulu, Hawaii, USA Institute for Advanced Planetary Astrophysics, Honolulu, Hawaii, USA
*
email: [email protected]
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Abstract

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We present the results of a study of secular resonances in a binary star system and their effects on the formation of terrestrial planets. The systems of our interest are binaries with moderate separations (i.e., smaller than 40 AU) where planets revolve around one of the stars. Using numerical simulations, we demonstrate the appearance and evolution of secular resonances in systems with two giant planets. Results indicate that the perturbation of the binary companion suppresses secular resonances and they do not play a significant role on the formation and orbital architecture of terrestrial planets. Unlike in our solar system where the secular resonance of Saturn confines the formation of terrestrial planets to regions interior to its location, in a binary star, terrestrial planets can form interior and exterior to this resonance. We present details of our simulations and discuss the implications of their results.

Keywords

Secular resonancesBinary systemsTerrestrial planet formation
Type
Contributed 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. 116 - 122
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Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

References

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