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BOOTES-6 Telescope Station captures rare southern lights and advances UFS space research

05 November 2024 | Story Leonie Bolleurs | Photo Supplied

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

UFS sets trend for higher education institutions

2005-09-21

The University of the Free State (UFS) offers more service-learning courses than any other higher education institution in the country and has the highest number of students enrolled for these service-learning courses.

This was the research findings on higher education institutions conducted between 2001 and 2004 by the Joint Education Trust (JET) into service-learning courses. These are courses which seek to integrate service to the community into the academic core of higher education institutions.

The results of this research indicated that the UFS is one of the few higher education institutions in South Africa that have made progress in integrating community engagement into the mainstream academy.

According to the findings 2 233 students at the UFS participated in service-learning courses supported by JET, while 858 students at the University of Transkei (UNITRA), 636 students at the University of the Western Cape (UWC) and only 600 students at the University of the Witwatersrand (WITS) participated in service-learning courses.

In total there were 6 930 students participating in service learning courses supported by the JET at 10 institutions throughout the country.

The research also found that out of a total of 182 service-learning courses supported by JET countrywide, the UFS had the highest number of such courses at 42, followed by WITS with 28, the University of Kwazulu Natal with 26, UWC 24 and UNITRA with 22.

Nationally, most of the service-learning courses at higher education institutions are offered in the human sciences (62), followed by health sciences (37), education (26), agriculture (14), and economic sciences (11).

According to leading academics, service-learning is a credit-bearing, educational exercise in which students participate in an organised service activity that meets identified community needs and helps the student to gain a deeper understanding of course content and a sense of civic responsibility.

Reacting to the research findings, the Rector and Vice-chancellor of the UFS, Prof Frederick Fourie, said the university feels strongly that there should be integration of service-learning into the academic core of the institution.

“Through service-learning modules the UFS can give expression to its role of service to the community as an institution of higher learning, producing quality graduates who understand the communities in which they will have to function for the rest of their lives,” Prof Fourie said.

According to Mr Jo Lazarus, the project manager of the Community-Higher Education – Service Partnership (CHESP), which falls under the JET, a number of institutions have identified community engagement as a strategic priority and have allocated significant resources from their central budget towards its implementation.

Mr Lazarus said most students have an overwhelmingly positive attitude towards service learning.

“A large percentage of students surveyed indicated that their service-learning course helped to improve their relationship skills, leadership skills and project planning abilities. As significant is the fact that these courses also benefited them in terms of their awareness of cultural differences and opened their eyes about their own cultural stereotypes,” said Mr Lazarus.

“The key challenge still hampering the integration of service-learning as a core function of academic activity is that some institutions still see service-learning as an add-on, and nice-to-have activity,” he said.

According to Mr Lazarus higher education must demonstrate social responsibility and commitment to the common good by making available expertise and infrastructure for service-learning as a form of community engagement.

Media release
Issued by:  Lacea Loader
   Media Representative
   Tel: (051) 401-2584
   Cell: 083 645 2454
   E-mail: loaderl.stg@mail.uovs.ac.za
   20 September 2005

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