The dependence of the stability of hierarchical triple systems on the orbital inclination

In this paper we study numerically the effect of the initial mutual orbital inclination on the stability of hierarchical triple systems with initially circular orbits. Our aim is to investigate the possibility that the stability boundary may be independent of the orbital inclination for certain mass ratios. We integrate numerically the equations of motion of hierarchical triple systems with initially circular orbits and different orbital configurations. The mass ratios cover the range from 10-610-6 to 106106 and the initial mutual inclination angle varies from 0° to 180°. The results from the numerical simulations show that for hierarchical triple systems with initially circular orbits and for the mass ratios we used, the initial mutual inclination angle does affect the stability boundary.

► We study the effect of the mutual inclination on the stability of triple systems.
► The orbits are initially circular.
► We investigate whether the stability boundary depends on the orbital inclination.
► We conclude that the mutual inclination angle does affect the stability boundary.