Abstract
The study of resonances in celestial mechanics is crucial for understanding the dynamics of planetary or stellar systems. This study focuses on presenting a method for investigating the topology and resonant structures of a dynamical system. To illustrate the strength of the method, we have applied our method to retrograde resonances in the planar circular restricted three-body problem within binary star systems. Because of the high mass ratio systems, the techniques based on perturbation of the two-body orbit are not the ideal to analyze the system. Consequently, resonant angles could be meaningless, necessitating alternative methods for resonance identification. To address this challenge, an image classification-based machine learning model is implemented to identify resonances based on the shape of orbits in the rotating frame. Initially, the model is trained on empirical cases with low mass ratios using the resonant angle as a starting point for resonance identification. The model’s performance is validated against existing literature results. The model results demonstrate successful classification and identification of retrograde resonances in both empirical and non-empirical cases. The model accurately captures the resonance patterns and provides initial insights into the short-term stability of the corresponding resonances.
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Acknowledgements
The computational resources were supplied in part by the Center for Scientific Computing (NCC/GridUNESP) of the São Paulo State University (UNESP).
Funding
This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001/PRInt. Carruba V. acknowledges the support of the Brazilian National Research Council (CNPq, Grant 304168/2021-1). We acknowledge the support Grants 2022/08716-4, 2021/08716-4, and 2021/08274-9 from São Paulo Research Foundation (FAPESP).
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GC, SA, and AP contributed equally to the study’s conception and design. Material preparation and data collection were performed by GC, AS, SA, and HM. Data interpretation was done by GC, HM, VC, AP, and HH. The first draft of the manuscript was written by GC, SA, and HM. The numerical simulations were done using the computational resources of AP. All authors have commented on and suggested previous versions of the manuscript. All authors read and approved the final manuscript.
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Caritá, G.A., Aljbaae, S., Morais, M.H.M. et al. Image classification of retrograde resonance in the planar circular restricted three-body problem. Celest Mech Dyn Astron 136, 10 (2024). https://doi.org/10.1007/s10569-024-10181-8
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DOI: https://doi.org/10.1007/s10569-024-10181-8