1. International Centre for Radio Astronomy Research, Curtin University , GPO Box U1987, Perth, WA 6845, Australia
2. INAF, Istituto di Astrofisica Spaziale e Fisica Cosmica , Via U. La Malfa 153, I-90146 Palermo, Italy
3. Department of Physics, George Washington University , 725 21st St NW, Washington, DC 20052, USA
4. Curtin Institute for Computation, Curtin University , GPO Box U1987, Perth, WA 6845, Australia
5. School of Mathematical and Physical Sciences, University of Technology Sydney , 15 Broadway, Ultimo, NSW 2007, Australia
6. Office of Academic Excellence, The University of Newcastle , University Drive, Callaghan, NSW 2308, Australia
7. School of Physical Sciences, The University of Adelaide , Adelaide, SA 5005, Australia
8. Anton Pannekoek Institute for Astronomy, University of Amsterdam , Science Park 904, NL-1098 XH Amsterdam, the Netherlands
9. CSIRO Space & Astronomy , PO Box 1130, Bentley, WA 6102, Australia
10. Deutsches Elektronen-Synchrotron (DESY) , D-15738 Zeuthen, Germany
11. ASTRON, the Netherlands Institute for Radio Astronomy , Postbus 2, NL-7990 AA Dwingeloo, the Netherlands
12. School of Mathematical and Physical Sciences, Macquarie University , Sydney, NSW 2109, Australia
13. Astronomy, Astrophysics and Astrophotonics Research Centre, Macquarie University , Sydney, NSW 2109, Australia
14. IRFU, CEA, Université Paris-Saclay , F-91191 Gif-sur-Yvette, France
15. Landessternwarte, Universität Heidelberg , Königstuhl, D-69117 Heidelberg, Germany