Resonant capture in quadruple stellar systems
Solar and Stellar Astrophysics
2020-04-08 v2 Earth and Planetary Astrophysics
Abstract
Some quadruple star systems in the hierarchical 2+2 configuration exhibit orbit-orbit resonances between the two compact binaries. We show that the most important resonances occur at period ratios of 1:1, 3:2 and 2:1. We describe the conditions required for capture and show that they can be satisfied at the 3:2 and 2:1 resonances in binaries that migrate significantly in semimajor axis after circularization, probably through magnetic braking or gravitational radiation.
Cite
@article{arxiv.2003.01141,
title = {Resonant capture in quadruple stellar systems},
author = {Scott Tremaine},
journal= {arXiv preprint arXiv:2003.01141},
year = {2020}
}
Comments
13 pages, 1 figure