Gravitational waves from strongly magnetised neutron stars

Strongly magnetised neutron stars are prime candidates for multi-messenger astronomy given their proximity and regular, energetic flaring events. We present non-linear, ideal MHD simulations of strongly magnetised neutron stars in general relativity that are models for post-flare internal dynamics of these stars. In particular, magnetic field instabilities are used to trigger global reconfigurations of the magnetic field, which in turn excites both fluid and Alfven modes throughout the star. These simulations are discussed in the context of gravitational wave emissions and detectability for ground-based gravitational wave detectors.