Modulated rotating waves and triadic resonances in spherical fluid systems: The case of magnetized spherical Couette flow

The existence of triadic resonances in the magnetized spherical Couette system (MSC) is related to development modulated rotating waves, which are quasiperiodic flows understood terms bifurcation theory systems with symmetry. In contrast previous studies geometry resonant modes not inertial waves but radial jet instability strongly equatorially antisymmetric. We propose a general framework generated through successive Hopf bifurcations from base state. study relies on an accurate frequency analysis different flow, for solutions belonging two scenarios. azimuthal and latitudinal nonlinear coupling among analysed interpreted using harmonics results compared geometry.