Stability Study of Rayleigh-Taylor Instability in the Presence of Flow

The effect of a radially varying parallel equilibrium flow on the stability of Rayleigh- Taylor (RT) instability is studied analytically in the presence of a sheared magnetic field. It is shown that the parallel flow curvature can completely stabilize the RT mode. The flow curvature also has a robust effect on the radial structure of the mode. Possible implications of these theoretical findings to recent experiments are also discussed.