16–17 Jul 2020
Australia/Perth timezone

Centaurus A like you have never seen it before

16 Jul 2020, 14:00
20m
GEG Science

Speaker

Benjamin McKinley

Description

The MWA Phase-2 upgrade has effectively doubled the angular resolution of the array, providing an opportunity to examine extended sources in greater detail. Centaurus A, our closest neighbouring radio galaxy and the largest in angular extent on the sky, is particularly challenging to image due to the large range in brightness and spatial scale that it spans. Incomplete uv-coverage has hampered previous efforts to reveal the complex feedback mechanisms that govern the evolution of the radio source as relativistic particles stream from the dense, bright core to form both large and small-scale structures in the faint radio lobes. I will present new MWA images combining data from both phase 1 and phase 2-extended configurations using joint deconvolution, which provide arguably the best view of the entire radio source to date and the ability to gain new insights into the physics at work in the lobes and the transition regions where energy is transferred between small and large scales.

Suggested presentation duration (minutes) 15

Primary author

Benjamin McKinley

Presentation materials

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