Precession resonances in hierarchical triple systems
General Relativity and Quantum Cosmology
2022-01-06 v2 Astrophysics of Galaxies
High Energy Astrophysical Phenomena
Abstract
We describe a new kind of resonance occuring in relativistic three-body hierarchical systems: the precession resonance, occuring when the relativistic precession timescale of a binary equals the period of a distant perturber. We find that, contrary to what most previous studies assume, it can lead to an exponential increase of eccentricity of the binary even when relativistic precession dominates the quadrupolar perturbation. The resonance may happen in the observation band of LISA or change the eccentricity distribution of triples. We discuss the physics of the resonance, showing that it mainly depends on three parameters.
Cite
@article{arxiv.2112.05167,
title = {Precession resonances in hierarchical triple systems},
author = {Adrien Kuntz},
journal= {arXiv preprint arXiv:2112.05167},
year = {2022}
}
Comments
Version accepted for publication in PRD