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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

Government supports the UFS's transformation push
2009-09-04

The Minister of Higher Education and Training, Dr Blade Nzimande (pictured), has lauded the University of the Free State (UFS) for the progress it has made in increasing access for black students.

However, the minister also acknowledged that the UFS has failed in some respects to make important changes.

“The continued racial segregation of the hostels is something that is unacceptable 15 years after the introduction of a democratic order and has no doubt contributed to the kinds of attitudes that led to the notorious incident at the Reitz Hostel last year,” he said.

Dr Nzimande was delivering the JN Boshoff Commemorative Lecture on the Main Campus in Bloemfontein last night.

He said the Rector and Vice-Chancellor of the UFS, Prof Jonathan Jansen, has assured him that he will speed up this issue of residence integration and that he was confident he will do so successfully with the support of the overwhelming majority of the university community.

“He has my support in his new role and he will succeed in taking the university forward decisively along the path towards greater academic excellence and to serving its students and staff, the Free State province and South Africa as a whole, including its poorest and most disadvantaged citizens,” he said.

He said the UFS is an important national asset and “not an asset for some to the exclusion of others”.

“We will play our part as the Department of Higher Education and Training to support you in pursuing transformation, but we won’t keep quiet when we see that there are things that are developing that are actually undermining the realization of the UFS as a national asset,” he said.

Despite the fact that all our universities, he said, have policies in place to combat racism and discrimination, the Soudien Report shows that there is a disconnection between policy and actual discriminatory practice at universities.

“This is a serious problem because this disjuncture is not only because of the actions of maverick individuals on the ground, but includes the universities’ leadership, including even University Councils which are guilty of making policy in order to comply with legislation but expect that policy to be ignored in practice,” he said.

The Soudien Report is a Report of the Ministerial Committee on Transformation and Social Cohesion and the Elimination of Discrimination in Public Higher Education Institutions commissioned by the Department of Education last year.

Dr Nzimande also raised the fact that universities have neglected the Further Education and Training (FET) college sector in terms of research and teaching.

“There is not enough research by the universities on the FET college sector and yet this is the sector that we are prioritizing to absorb many of our young people who can’t make it to universities,” he said.

“We want to try and fight against this notion that in order to proceed in life university is the only place. We want to turn these FET colleges into colleges of choice and universities must help us, not only to research them but also to train FET colleges lecturers.”

He also announced that he will be calling a meeting of all the chairpersons of the Institutional Forums of the universities later this month as he feels that the role and status of these forums have been “eroded”.

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt.stg@ufs.ac.za  
04 September 2009
 

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