Prof. Piyali Chatterjee

Spicules are plasma jets observed in the dynamic interface region between the visible solar surface and the hot corona. At any given time, it is estimated that a few millions of spicules are present on the Sun. We find an intriguing parallel between the simulated spicule forest in a solar-like atmosphere using a radiative MHD code and the numerous jets of polymeric fluids in the lab when both are subjected to harmonic forcing. On the basis of mathematical and phenomenological similarities, we propose four sufficient conditions for the formation of jets in either system. Furthermore, we also explore the role of surface curvature singularities and MHD shocks, respectively, in exciting jets in these two disparate systems. The role of solar convection in powering these multitude of jets will also be discussed.