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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

Bullying in schools: Everyone’s problem

2005-06-03

From left: Prof Gerhardt de Klerk, Dean: Faculty of the Humanities; Prof Corene de Wet; Prof Rita Niemann, Head of the Department of Comparative Education and Educational Management in the School of Education and Prof Frederick Fourie, Rector and Vice-Chancellor of the UFS

It is not only learners who are the victums of bullying in schools, but also the teachers. Prof. Corene de Wet from the Department Comparative Education and Educational Management at the University of the Free State reported, against the background of two studies on bullying in Free State secondary schools, that bullying is a general phenomena in these schools.

Prof. de Wet, who delivered her inaugural lecture on Wednesday night, is from the Department Comparative Education and Educational Management which resorts under the School of Education at the University of the Free State. She is the first women who became a full professor the School of Education.

Prof. de Wet says, “A student is being bullied or victimized when he or she is exposed, repeatedly and over time, to negative action on the part of one or more students. Bullying always includes the intentional use of aggression, an unbalanced relationship of power between the bully and the victim, and the causing of physical pain and/or emotional misery.

In some Free State schools there are victims and perpetrators of direct and indirect verbal, as well as emotional, physical and sexual bullying.

“Adults who say that bullying are part of the growing-up process and parents who set not only academic expectations but also social expectations to their children cause that victims are unwilling to acknowledge that they are being bulled. Many parents are also unaware of the levels of bullying their children are exposed to.

“Some of the learners were at least once a month the victim of direct verbal harassment, 32,45% were assaulted by co-learners and 11,21% of them were at east once per week beat, kicked, pushed and hurt in any other physical way. Free State learners are very vulnerable to bullies at taxis and on the school yard they are mostly exposed to bullies in bathrooms.

“Learners are usually bullied by members of the same gender. However, racial composition also plays a role in some Free State schools. A grade 12 girl writes, ‘There are boys in my school who act means against black people. When the teacher is out they take a red pen and write on the projector and spray it with spirits. It looks like blood and they would say it is AIDS and my friends and I have it.’

“Educators must take note of bullying in schools and must not shrug it off as unimportant. Principals or educators could be find guilty of negligence. A large number of educator respondents, 88,29%, indicated that they would intervene in cases of verbal bullying and 89,71% would intervene if they saw learners being physically bullied. However, only 19,97% of the learners who were victims of bullying were helped by educators/ other adults from their respective schools.

“The learners’ lack of trust in their educators’ abilities and willingness to assist them in the fight against bullying has important implications for education institutions. The importance of training must be emphasised.

Learners bully their educators to undermine their confidence. In Prof. de Wet’s study on educator-targeted bullying in Free State schools 24,85% of the respondents were physically abused by their learners, 33,44% were the victims of indirect verbal bullying, and 18,1% were at one time or another sexually harassed by their learners. These learner offences may lead to suspension.

“Educators are not only victims of bullying; some of them are the bullies. The South African Council for Educators prohibits bullying by educators. It is worrying that 55,83% of the educators who participated in the research project verbally victimised learners, 50,31% physically assaulted learners and a small percentage was guilty of sexual harassment.

“Every educator and learner in South Africa has the right to life, equal protection and benefit of the law, of dignity, as well as of freedom and security of the person. These rights will only be realised in a bully-free school milieu.

“To oppose bullying a comprehensive anti-bullying programme, collective responsibility and the establishment of a caring culture at schools and in the community is necessary,” said Prof. de Wet.

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