Establish whether hydrodynamic geometric emission relations persist in magnetized mixing layers

Determine whether geometric relations identified in hydrodynamic turbulent radiative mixing layers, including the X-ray-to-H$\alpha$ surface-brightness relation, remain unchanged when magnetic fields suppress small-scale folding of the cooling surface and alter the temperature distribution.

Background

The simulations show that magnetic fields modify the geometry of the cooling interface, reduce the amount of intermediate-temperature gas, and change the rate at which hot gas is transported into the cooling layer. These effects can alter temperature PDFs and emission diagnostics relative to hydrodynamic calculations.

The authors specifically identify uncertainty about whether observationally relevant geometric relations derived from hydrodynamic mixing layers survive in magnetized systems. Quantitative emissivity-weighted calculations with an appropriate cooling curve are needed to resolve this question.