Systematic global electromagnetic gyrokinetic simulations find Shafranov shift effects mainly stabilize TAEs (90% growth-rate reduction when EP pressure is in the equilibrium) and damp KBMs, with nonlinear TAE fluxes reduced but saturation levels unchanged.
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Shafranov shift and finite $\beta$ effects on Alfv\'en Eigenmodes and microinstabilities in global electromagnetic gyrokinetic simulations
Systematic global electromagnetic gyrokinetic simulations find Shafranov shift effects mainly stabilize TAEs (90% growth-rate reduction when EP pressure is in the equilibrium) and damp KBMs, with nonlinear TAE fluxes reduced but saturation levels unchanged.