I am a senior researcher in radio astronomy at the University of Oxford, UK, and a visiting professor at Rhodes University, South Africa. I also have an honorary affiliation with the South African Radio Astronomy Observatory.
My research involves using continuum and spectral line observations with radio interferometers to study various phenomena in the Universe, and developing new and automated ways to process such data. I work on the design and execution of several large-scale radio surveys using next-generation radio telescopes, primarily MeerKAT, the South African precursor to the mid-frequency component of the Square Kilometre Array.
A list of my publications can be found on NASA's ADS here.
I held a Hintze Fellowship in Oxford prior to my current position (2017-2019). Before that I spent four years in Australia where I was a Senior Research Scientist (2013-2017) and head of the astrophysics group (2016-2017) at CSIRO Astronomy & Space Science, where I worked mainly on commissioning the ASKAP telescope, the other dish-based SKA precursor instrument. I have also previously held an Honorary Senior Research Associate (2011-2017) position at Rhodes University. Before moving to Australia I was a SEPnet Fellow (2011-2013), and post-doc (2004-2011) at the University of Oxford. I received my PhD in astrophysics from the University of Manchester (2005).
The banner image above shows radio emission from the galaxy cluster MACS J0717.5+3745 at a frequency of 3 GHz. The angular resolution of this image is 0.7 arcseconds, reaching a depth of 0.7 μJy/beam. This image is part of a campaign to image the Hubble Frontier Fields with the VLA, with the goal of using the graviational lensing of the foreground clusters to assist in the detection of radio emission from the faintest and most distant galaxies in the Universe.
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