20 citations · 39 across the 15 of their papers we have counts for
17 papers
Energy redistribution during 2D oscillatory reconnection
Luiz A. C. A. Schiavo, Jordan Talbot, Gert J. J. Botha +4
Magnetic reconnection is a fundamental energy release mechanism in solar and space plasmas. However, the distribution of released magnetic energy among kinetic and internal (therma…
Mapping Oscillatory Flows in a Giant Chromospheric Spiral
Yash. B. Saneshwar, Eamon Scullion, Gert J. J. Botha
The solar chromosphere is permeated by complex magnetic fields that guide plasma flows and energy into the corona. This work presents a detailed analysis of a unique, high-resoluti…
Probing the Solar Corona and the Solar Wind Using Angular Broadening Observations with the SKA
Peijin Zhang, John Morgan, Divya Oberoi +9
Angular broadening observations of compact radio sources provide a powerful method for probing the solar corona and solar wind. Such observations enable studies of the phase struct…
First Detailed MeerKAT Imaging Spectroscopy of a Solar Flare
Yingjie Luo, Eduard P. Kontar, Roelf Du Toit Strauss +5
Radio observations provide powerful diagnostics of energy release, particle acceleration, and transport processes in solar flares. However, despite recent progress in radio interfe…
Fast Magnetoacoustic Wave Behavior within Gravitationally Stratified, Magnetically Inhomogeneous Media
Ryan T. Smith, James A. McLaughlin, Gert J. J. Botha
The nature of MHD waves within inhomogeneous media is fundamental to understanding and interpreting wave behavior in the solar atmosphere. We investigate fast magnetoacoustic wave…
Wave generation via oscillatory reconnection at a three-dimensional magnetic null point
Luiz A. C. A. Schiavo, Gert J. J. Botha, James A. McLaughlin
This work conducts a three-dimensional (3D), nonlinear magnetohydrodynamic (MHD) simulation to investigate wave generating, time-dependent reconnection around a magnetic null point…
Time-dependent Turbulent Electron Acceleration and Transport in Solar Flares
Luiz A. C. A. Schiavo, Natasha L. S. Jeffrey, Gert J. J. Botha +1
Solar flares are explosive releases of magnetic energy stored in the solar corona, driven by magnetic reconnection. These events accelerate electrons, generating hard X-ray emissio…
The periodicity of three-dimensional oscillatory reconnection
Luiz A. C. A. Schiavo, Gert J. J. Botha, James A. McLaughlin
Oscillatory reconnection is a dynamic, magnetic relaxation mechanism in which a perturbed null point reverts back to equilibrium via time-dependent reconnection. In this paper, we…
Solar Vortices as Conduits for Magnetoacoustic Waves: Multi-Layer Coupling and Their Role in Atmospheric Heating
Suzana S. A. Silva, Ioannis Dakanalis, Luiz A. C. A. Schiavo +10
Vortices are widespread throughout the solar atmosphere and commonly interpreted as channels for Alfvén wave energy transport. However, this interpretation has mostly been inferred…
Multi-wavelength observations of substructures in solar flare ribbons
Vishal Singh, Eamon Scullion, Gert J. J. Botha +6
Solar flare ribbons are extensive brightenings in the chromosphere during flares, often showing fine scale structuring that reflects the underlying energy release. Using high caden…
The coronal power spectrum from MHD mode conversion above sunspots
Hemanthi Miriyala, Richard J. Morton, Elena Khomenko +2
Sunspots are intense regions of magnetic flux that are rooted deep below the photosphere. It is well established that sunspots host magnetohydrodynamic waves, with numerous observa…
Self-similar solutions of oscillatory reconnection: parameter study of magnetic field strength and background temperature
Luiz A. C. A. Schiavo, Gert J. J. Botha, James A. McLaughlin
Oscillatory reconnection is a specific type of time-dependent reconnection which involves periodic changes in the magnetic topology of a null point. The mechanism has been reported…
Identifying coronal sources of L1 solar wind disturbances using the Fisk heliospheric magnetic field and potential field extrapolations during three solar minima
P. J. Steyn, D. Johnson, G. J. J. Botha +1
The solar minima between solar cycles 22-23, 23-24 and 24-25 are the best observed minima on record. In situ solar wind and interplanetary magnetic field measurements by the WIND a…
The Effect of Resistivity on the Periodicity of Oscillatory Reconnection
Jordan Talbot, James A. McLaughlin, Gert J. J. Botha +1
The oscillatory reconnection mechanism is investigated for a parameter study of eight orders of magnitude of resistivity, with a particular interest in the evolution of the oscilla…
Spectroscopic Imaging of the Sun with MeerKAT: Opening a New Frontier in Solar Physics
Devojyoti Kansabanik, Surajit Mondal, Divya Oberoi +7
Solar radio emissions provide several unique diagnostics to estimate different physical parameters of the solar corona, which are otherwise simply inaccessible. However, imaging th…
Simulation of the Observed Coronal Kink Instability and Its Implications for the SDO/AIA
A. K. Srivastava, G. J. J. Botha, T. D. Arber +1
Srivastava et al. (2010) have observed a highly twisted coronal loop, which was anchored in AR10960 during the period 04:43 UT-04:52 UT on 4 June 2007. The loop length and radius a…
Observational signatures of the coronal kink instability with thermal conduction
G. J. J. Botha, T. D. Arber, Abhishek K. Srivastava
It is known from numerical simulations that thermal conduction along magnetic field lines plays an important role in the evolution of the kink instability in coronal loops. This st…