Two-fluid simulations of Rayleigh-Taylor instability in a magnetized solar prominence thread

Solar prominences are formed by partially ionized plasma with inter-particle collision frequencies generally warranting magnetohydrodynamic treatment. In this work, we explore the dynamical impacts and observable signatures of two-fluid effects in parameter regimes when ion-neutral collisions do not fully couple neutral charged fluids. We perform 2.5D (charges - neutrals) simulations Rayleigh-Taylor instability (RTI) at a smoothly changing interface between solar prominence thread corona. The purpose study is to deepen our understanding RTI partial ionization on development using non-linear numerical simulations. Our model takes into account viscosity, thermal conductivity, collisional interaction neutrals charges: ionization/recombination, energy momentum transfer, frictional heating. paper I, sensitivity dynamics equilibrium configuration, including impact magnetic field strength shear supporting thread, amount mass-loading explored. show that, small scales, realistically smooth prominence-corona leads qualitatively different linear evolution than that expected for discontinuous interface, while has stabilizing effect reducing growth rate or eliminating instability. phase, observe presence formation coherent interacting structures, which, turn, can lead substantial flow across lines associated decoupling fluid velocities charges neutrals.