Radio Astronomy
Christopher J. Riseley
I am a Junior Professor of Radio Astronomy at the Astronomisches Institut der Ruhr-Universität Bochum (AIRUB) . My research group uses radio telescopes around the world to study particle acceleration and magnetic fields in cosmic structures from individual galaxies through to galaxy groups and clusters.
We study multi-wavelength tracers of star formation in galaxies of all kinds from dwarfs to the most massive galaxies, and how the environment plays a role in influencing the evolution of these galaxies. In the galaxy group and cluster regime, my group also studies the physics of different particle acceleration mechanisms that power diffuse radio emission on large scales. The synchrotron emission associated with all of these environments traces cosmic ray electrons and magnetic fields on a variety of different scales, and we use multi-wavelength data to probe nature and distribution of these non-thermal components. Beyond these more well-defined regimes, we keep our eyes open for all the weird and wonderful sources being discovered by the maturing Pathfinder and Precursor instruments for the Square Kilometre Array (SKA).
I specialise in long-wavelength radio astronomy, with a particular focus on exploring data from the LOw-Frequency ARray (LOFAR), the Murchison Widefield Array (MWA), the Australian Square Kilometre Array Pathfinder (ASKAP), and the MeerKAT telescope in South Africa.
Outside of my own research, I am the MWA Principal Scientist, a role I have held since 2021, and a former member of the Astronomical Society of Australia (ASA) Early Career Researcher (ECR) Chapter Steering Committee (2021 – 2023).


