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Dr Gert Botha

Senior Lecturer

Department: Mathematics, Physics and Electrical Engineering

EE Gertbotha Staffprofile 255

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 Northumbria University in 2012.

 

 

Key Publications

  • Please visit the Pure Research Information Portal for further information
  • 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
  • 3D WKB solution for fast magnetoacoustic wave behaviour within a separatrix dome containing a coronal null point, McLaughlin, J., Thurgood, J., Botha, G., Wiggs, J. 21 Mar 2019, In: Monthly Notices of the Royal Astronomical Society
  • Onset of 2D magnetic reconnection in the solar photosphere, chromosphere, and corona, Snow, B., Botha, G., Mclaughlin, J., Hillier, A. 23 Jan 2018, In: Astronomy & Astrophysics
  • Predictions of DKIST/DL-NIRSP observations for an off-limb kink-unstable coronal loop, Snow, B., Botha, G., Scullion, E., McLaughlin, J., Young, P., Jaeggli, S. 22 Aug 2018, In: The Astrophysical Journal
  • Observational signatures of a kink-unstable coronal flux rope using Hinode/EIS, Snow, B., Botha, G., Regnier, S., Morton, R., Verwichte, E., Young, P. 8 Jun 2017, In: The Astrophysical Journal
  • 3D WKB solution for fast magnetoacoustic wave behaviour around an X-line, McLaughlin, J., Botha, G., Regnier, S., Spoors, D. 22 Jun 2016, In: Astronomy & Astrophysics
  • Chromospheric seismology above sunspot umbrae, Snow, B., Botha, G., Regnier, S. Aug 2015, In: Astronomy & Astrophysics
  • Statistical properties of Charney-Hasegawa-Mima zonal flows, Anderson, J., Botha, G. 11 May 2015, In: Physics of Plasmas
  • Simulation of the observed coronal kink instability and its implications for the SDO/AIA, Srivastava, A., Botha, G., Arber, T., Kayshap, P. 2013, In: Advances in Space Research
  • Formation of magnetic flux tubes in cylindrical wedge geometry, Botha, G., Rucklidge, A., Hurlburt, N. Dec 2012, In: Geophysical and Astrophysical Fluid Dynamics

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
  • 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
  • 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

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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