Gert Botha

Dr Gert Botha

Assistant Professor

Department: Mathematics, Physics and Electrical Engineering

After obtaining my first degrees in South Africa, I worked on the fusion project at the South African Nuclear Energy Corporation for a few years. I left South Africa to do my doctorate at Imperial College in London. Since then I have been working in astrophysical plasmas with the main emphasis in solar plasmas. I started as a lecturer at ��ϲ�� in 2012.

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Key Publications

Identifying Coronal Sources of L1 Solar Wind Disturbances Using the Fisk Heliospheric Magnetic Field and Potential Field Extrapolations during Three Solar Minima, Steyn, P., Johnson, D., Botha, G., Régnier, S. 1 May 2024, In: The Astrophysical Journal
Self-similar Solutions of Oscillatory Reconnection: Parameter Study of Magnetic Field Strength and Background Temperature, Schiavo, L., Botha, G., McLaughlin, J. 1 Nov 2024, In: The Astrophysical Journal
Spectroscopic Imaging of the Sun with MeerKAT: Opening a New Frontier in Solar Physics, Kansabanik, D., Mondal, S., Oberoi, D., Chibueze, J., Engelbrecht, N., Strauss, R., Kontar, E., Botha, G., Steyn, P., Nel, A. 17 Jan 2024, In: Astrophysical Journal
The Effect of Resistivity on the Periodicity of Oscillatory Reconnection, Talbot, J., McLaughlin, J., Botha, G., Hancock, M. 15 Apr 2024, In: The Astrophysical Journal
Oscillatory Reconnection as a Plasma Diagnostic in the Solar Corona, Karampelas, K., McLaughlin, J., Botha, G., Régnier, S. 1 Feb 2023, In: The Astrophysical Journal
The Radial Variation of the Solar Wind Turbulence Spectra near the Kinetic Break Scale from Parker Solar Probe Measurements, Lotz, S., Nel, A., Wicks, R., Roberts, O., Engelbrecht, N., Strauss, R., Botha, G., Kontar, E., Pitňa, A., Bale, S. 17 Jan 2023, In: The Astrophysical Journal
Oscillatory Reconnection of a 2D X-point in a hot coronal plasma, Karampelas, K., McLaughlin, J., Botha, G., Regnier, S. 1 Feb 2022, In: Astrophysical Journal
The Independence of Oscillatory Reconnection Periodicity from the Initial Pulse, Karampelas, K., McLaughlin, J., Botha, G., Régnier, S. 11 Jul 2022, In: The Astrophysical Journal
Shock identification and classification in 2D magnetohydrodynamic compressible turbulence — Orszag–Tang vortex, Snow, B., Hillier, A., Murtas, G., Botha, G. 23 Nov 2021, In: Experimental Results
A chromospheric resonance cavity in a sunspot mapped with seismology, Jess, D., Snow, B., Houston, S., Botha, G., Fleck, B., Prasad, S., Asensio Ramos, A., Morton, R., Keys, P., Jafarzadeh, S., Stangalini, M., Grant, S., Christian, D. 1 Mar 2020, In: Nature Astronomy

PGR Supervision

Vishal Singh Modelling an X-class solar flare combining observations, electron beam transport physics and MHD numerical simulations Start Date: 01/10/2021
Linh Le Phuong A Numerical Study of Partially Ionised Plasma Using a 2D Two-Fluid Magnetohydrodynamic Code Start Date: 17/10/2018 End Date: 29/07/2020
Benjamin Snow Numerical Simulations of Chromospheric Physics: Sunspot Resonating Cavity, 2D Magnetic Reconnection and Forward Modelling Start Date: 01/10/2013 End Date: 30/03/2017

Qualifications

Physics PhD September 01 1991
Applied Mathematics MSc September 01 1989
Fellow Royal Astronomical Society (RAS) 1999
Member Institute of Physics (IOP) 1995
Member American Geophysical Union (AGU) 1992

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