Radio lobes, vast structures inflated by supermassive black holes (SMBH), play a pivotal role in shaping our universe. These regions are like superhighways from active galactic nuclei (AGNs) to the larger cosmos, transferring energy and material at incredible rates. This transfer has far-reaching implications, from influencing star formation and growth in the host galaxy, to enriching the cosmos with heavy elements, magnetic fields, and cosmic rays. Yet, the magnetised plasma within these lobes, which helps govern these processes and encodes the history of interaction between the lobes and their surrounding environment, remains elusive and difficult to study. However, a new generation of radio telescopes can measure the presence and structure of this material with unprecedented clarity, allowing us to exploit omnipresent cosmic magnetic fields as giant ‘dye tracers' to study the flow of magnetised gas in and around these environments.

Students can choose from several projects in this area, which can be adapted in scope to suit different degrees and project lengths. These include:

• Investigating the giant outer Lobes of our nearest radio galaxy Centaurus A: Utilising data from the new ASKAP telescope, students will probe the structure, composition, and dynamics of the outer lobes of the nearby Cen A radio galaxy, with a focus on why its lobes are so asymmetrical in key respects
• Exploring ‘dying’ radio galaxies: With ASKAP observations, students will have the opportunity to decipher the magnetised plasma environment of ‘dying’ radio galaxies, and how their interactions with their environment change after their energy supply has been cut off
• Studying Radio Galaxies with JVLA Observations: This project will use data from the Jansky VLA to answer fundamental questions about the and internal structure and evolution of radio lobes and their influence on gas in the intergalactic medium.

The projects will address a range of cutting-edge scientific questions, such as:

1. How is magnetised plasma distributed within the lobes of radio galaxies, and what does this tell us about the physical conditions in these regions?
2. What physical mechanisms cause the distinct appearances and structures of radio lobes?
3. How do radio galaxies interact with their environment, and what are the resultant impacts on the galaxies themselves and the wider cosmic ecology?
4. How does the picture change as radio galaxies age and die?

The overarching goal of these projects is to enhance our understanding of radio galaxies, propelling forward both observational and theoretical advancements in the field of radio astronomy.

In each project, students will utilise data from some of the world’s most powerful radio telescopes, including ASKAP, Parkes, and the Jansky VLA. They will embark on real-world, state-of-the-art astrophysical research, acquiring skills in computing, data analysis, and interpretation, and expanding their knowledge of astronomy.

Furthermore, students will collaborate closely with a team of seasoned researchers, gaining from their expertise and guidance. They will also have opportunities to share their findings at research group meetings and potentially at national or international conferences.