Magnetoacoustic Wave Dynamics and a Magnetic Null-Point

In this study, the interaction of a magnetoacoustic pulse is highlighted with a two dimensional magnetic null point. A simple 2D magnetic null-point in the (x, y) plane is subject to a circlular pulse where its initial starting point depends on solar atmospheric conditions. An analytic relation is presented that governs the density perturbations due to the nearing of the magnetoacoustic pulse. This enables a deeper insight on the effects of the zero and finite plasma-β conditions on the density pertur-bations. The analytic results are accompanied by numerical plots using the PLUTO code. The results indicate that finite plasma-β conditions decrease the plasma density at the magnetic null-point. Adequate evidence for considering atmospheric conditions to prevent inaccurate conclusions regarding the interaction and energy transfer.