Intense radio emissions are often correlated with whistler waves when observed on the ground, despite being produced by different processes in space. We will use numerical simulations to study the linear conversion at density gradients of radio emissions into several types of plasma waves, and then apply this fundamental theory to multiple regions of space.
Radio antennas in the arctic regions and on Antarctica observe multiple types of radio emission and waves associated with solar activity and related space weather events in Earth’s magnetosphere. Auroral kilometric radiation (AKR), z-mode waves, and whistler waves are generated by energetic electrons in Earth’s auroral regions and observed on the ground and in space. Interestingly z-mode and whistler waves often occur in association with the AKR and have very similar timings and fine structures. The project will use an existing simulation code to study the linear mode conversion of z-mode waves into whistler waves and then radio emission in order to explain how the emissions reach the ground and why they are correlated. The conversion of z-mode waves into whistlers and of whistlers into radio emissions does not appear to have been studied before and should be widely applicable to other space contexts.
HDR Inherent Requirements
In addition to the academic requirements set out in the Science Postgraduate Handbook, you may be required to satisfy a number of inherent requirements to complete this degree. Example of inherent requirement may include:
The opportunity ID for this research opportunity is 2658