About the Authors

P. A. Robinson

Roles Conceptualization, Formal analysis, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing

peter.robinson@sydney.edu.au

Affiliation School of Physics, University of Sydney, Sydney, NSW, Australia

C. C. Kerr

Roles Formal analysis, Methodology, Software, Visualization, Writing – original draft, Writing – review & editing

Affiliation School of Physics, University of Sydney, Sydney, NSW, Australia

Competing Interests

The authors have declared that no competing interests exist.