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05 November 2024 | Story Leonie Bolleurs | Photo Supplied
BOOTES-6 telescope station
The BOOTES-6 telescope station captured a South African sighting of the southern lights, a rare atmospheric phenomenon powered by solar activity.

The northern lights, with their vibrant displays of green, pink, and violet hues, have become a famous attraction in Nordic countries. But in early October, a rare sighting of the southern lights – or aurora australis – was reported in South Africa, surprising many.

Prof Pieter Meintjes, Professor in the Department of Physics at the University of the Free State (UFS), explains that both the northern and southern lights are the result of charged particles from coronal mass ejections (CMEs) on the sun, which are captured by Earth’s magnetic field. "The interaction between magnetic fields and charged particles, such as protons and electrons, is very interesting. The magnetic field forces these particles to spiral around the field lines, ultimately guiding them towards the magnetic poles. As these particles enter Earth’s atmosphere, they collide with atmospheric atoms, causing a beautiful glow. The colours of the aurora indicate which atoms are involved. Typically, hydrogen shines red, while oxygen and nitrogen produce a greenish-blue tinge," he says.

Observing the southern lights

When the display occurs above the northern magnetic pole, it is called the aurora borealis (northern lights) and can typically be observed over regions such as Alaska, Greenland, and the Nordic countries. Above the southern magnetic pole, it is known as aurora australis (southern lights), usually visible over places such as Antarctica and New Zealand. “In extreme cases – when gigantic mass ejections occurred – it can also be observed in mid-latitudes such as South Africa,” says Prof Meintjes.

This recent and rare South African sighting was also captured by the BOOTES-6 telescope station at Boyden Observatory, located just outside Bloemfontein. According to Prof Meintjes, the telescope station has an all-sky monitor – a camera constantly watching the sky for changes and monitoring, among others, cloud cover to ensure that the telescope is always safe from weather. While the monitor was taking photos of the night sky, Prof Alberto Castro-Tirado, a research professor at the Institute of Astrophysics of Andalusia in Spain, picked up the aurora.

The Institute of Astrophysics of Andalusia in Spain, in collaboration with the University College Dublin (UCD), is partnering with the UFS in a research-driven initiative involving the BOOTES-6 telescope station, installed in 2022 during the COVID-19 pandemic. Under a Memorandum of Understanding that was recently renewed for another five years, the UFS and UCD share approximately 30% of the telescope's observing time dedicated to UFS research.

“The DPRT telescope (Dolores Pérez-Ramírez telescope), named after a Spanish astronomer and lecturer at the University of Jaén, contributes significantly to our research, with publications resulting from contributions made by the telescope station and collaborators on gamma-ray bursts, occultations, and transient events co-authored by me and a colleague in the department, Dr Hendrik van Heerden,” notes Prof Meintjes.

Research-driven initiatives

Data from the telescope station is also used for their in-house projects and contributes significantly to the work of their PhD students that will be submitted in the next few years. This includes the PhD work of Helene Szegedi, who uses data from the BOOTES-6 telescope station to study cataclysmic variable systems – compact binaries that erupt regularly. Another PhD student, Joleen Barnard, studies blazar variability under the guidance of Prof Brian van Soelen. Blazars, explains Prof Meintjes, are the core of distant galaxies powered by supermassive black holes. These cosmic jets are pointed towards Earth, but fortunately, they are millions or billions of light years away; otherwise, their impact would be devastating to life on Earth.

News Archive

Reitz colleagues start their own company
2014-07-01

The University of the Free State (UFS) and the five colleagues implicated in the Reitz incident of 2008 reached the final chapter in the reparation process in restoring the dignity of these colleagues on Thursday 19 June 2014.

Mr Mothibedi Molete and Mss Mankoe Naomi Phororo, Emmah Koko, Nkgapeng Adams and Sebuasengwe Mittah Ntlatseng, former cleaning staff at the UFS, are now the directors of their own cleaning company, Mamello Trading.

Furthering on its promise to assist the new-found company, the UFS has also appointed Mamello Trading as a service provider responsible for services at its South Campus.

It has been six years since the Reitz incident at the UFS and Dr Choice Makhetha, Vice-Rector: External Relations, described the journey of the past six years as a learning experience for all the stakeholders.

“This journey continues as there is still work to be done, but every milestone achieved, deserves a celebration like today’s,” Dr Makhetha said.

In 2010 the UFS signed a deed of settlement with the colleagues which committed the UFS to help them establish a cleaning company. This was followed by a reconciliation ceremony in 2011.

In 2012 the UFS assisted with the registration of the company Mamello Trading.

Dr Makhetha explained that in 2013 the UFS assisted in training the new directors and mentoring them for 12 months. 

Earlier this year, Mamello Trading signed a cleaning contract of four years with the UFS. Three of the directors’ daughters also received bursaries and are currently studying at the UFS.

Advocate Mohamed Ameermia, Commissioner at the Human Rights Commission, congratulated the management of the UFS on the reparation and reconciliation process they followed in restoring the dignity of the five colleagues.

The directors of Mamello Trading each had a special message of their journey and thanks. Their messages were as follows:

Rebecca Adams – After the video was exposed, I was hurt and was psychologically affected. By offering their apologies to us, the four students indicated that what they had done was a mistake. As a parent, when a child apologises you must accept that apology.
Emma Koko – I was shocked after the video was shown in public. I had a mother-child-like relationship with one of the students and that video tarnished my image as a human being. During the time of reconciliation these students showed remorse for what they had done.
David Molete – I was devastated, hurt and fearful to meet people. I ended up at a psychiatric hospital and attended counseling services which helped me to heal. The students apologised and I accepted because they were sincere.
Mittah Ntlaseng – The video impacted negatively on my dignity. The UFS assisted us with visits to psychologists. Now I feel I am a business owner and it is an opportunity for me to rebuild my self-esteem. 

Naomi Phororo – Mamello Trading is a business venture which is going to bring changes to our lives and families. The training I have received has enabled me to know how to manage the business.

 

Issued by: Lacea Loader (Director: Communication and Brand Management)
Telephone: +27(0)51 401 2584
Fax: +27(0)51 444 6393
E-mail: news@ufs.ac.za

  

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