Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
03 March 2020

The Office for International Affairs (OIA) at the University of the Free State (UFS) implemented the second iteration of its Umoja Buddy Programme (UBP) in 2020. The UBP is a flagship internationalisation-at-home programme aimed at the smooth academic, social, and cultural integration of first-entering international students at the UFS by pairing them with senior UFS students. It offers local students an international experience on the home campus and develops their international and intercultural competence through direct interaction with international students. The UBP contributes to the achievement of the UFS vision, whereby every student will in future have an international experience during their studies at the UFS.


Internationalisation at home

On 13 February 2020, a welcome function themed Echoes of Sophiatown set the tone for this year’s edition. Chevon Slambee, Chief Officer in the OIA and UFS master’s student, welcomed the students and explained the theme of the day. She said that, “as students, we have a responsibility to be active citizens and contribute to change and social transformation”. Programme coordinator Bulelwa Moikwatlhai introduced the function and framework of the programme and highlighted the importance of internationalisation at home. Also in attendance was the Dean of Students, Pura Mgolombane, who encouraged students in his address to honour their heritage, “so that together, we can be able to appreciate one another”. He emphasised the importance of social justice for academic success. The SRC member for the International Student Council, Simba Matheba, expressed his support for the UBP. The UFS Arts, Culture, and Dialogue office provided entertainment at the event.

Umoja Buddy

International and local students mingling at the 2020 Umoja Buddy Programme Welcome Function.

News Archive

Discovery in Scorpius constellation may signify clean energy for Earth
2017-01-23

 Description: Discovery in Scorpius constellation may signify clean energy for Earth Tags: Discovery in Scorpius constellation may signify clean energy for Earth

Earlier this year, a group of international astronomers
announced the discovery of an exotic binary star system,
AR Scorpii. The system is in the Scorpius constellation.
Photos: Supplied

See article on Nature’s website 

In future, stargazers and astronomers will look at the Scorpius constellation near the Milky Way with new eyes. Earlier this year, a group of international astronomers announced the discovery of an exotic binary star system, AR Scorpii. The system is in the Scorpius constellation.

Prof Pieter Meintjes, researcher in the Department of Physics at the University of the Free State (UFS), worked with four colleagues on what he describes as a “wonderful discovery”. This sensational discovery, which could lead to the production of cleaner energy on Earth, will be published in the research journal, Nature, early in 2017.

Model developed to interpret new set of measurements
The exotic binary star which was discovered consists of a red dwarf and a white dwarf revolving around each other every 3,5 hours. The binary system showed very prominent pulsations of 117 and 118 seconds respectively. The pulsations can be explained by a bundle radiation produced by the white dwarf star.

“These new observations have shown that the radiation is strongly polarised, a sign that we are dealing with synchrotron radiation here. Synchrotron radiation is produced by electrons accelerated to extremely high energy levels in the magnetic field of the white dwarf star,” says Prof Meintjes.

He developed a theoretical model to interpret a new set of measurements that was taken by the 1,9 m telescope and the 10 m SALT telescope at the South African Astronomical Observatory (SAA0).

Totally unique phenomenon could contribute to energy production on Earth
“I further indicated that the interaction between the magnetic fields of the white dwarf star and the red dwarf star induces secondary processes that specifically describe the behaviour of the radiation in the radio band and infrared band accurately. AR Sco is the first white-red dwarf binary system of which all the pulsated radiation could be explained by the synchrotron process, which is totally unique,” says Prof Meintjes.

According to Prof Meintjes, the value of the model lies in the fact that the processes which produce the radiation in AR Sco, can also be applied to produce energy on Earth.

 

Plasma reactors are based on roughly the same processes which apply in AR Sco, and with refining, it could be utilised to generate electricity in future. This will be much cleaner than nuclear energy.

 

The model developed by Prof Meintjes explains all the radiation in the system – from radio waves to X-rays – in terms of electrons accelerated to extremely high energy levels by electric fields in the system, which then produce synchrotron radiation over a very wide band of the electromagnetic spectrum.

Prof Meintjes is currently working on a follow-up article examining the evolution of the AR Sco, in other words, the origin of such a unique system and the final state towards which it is evolving. “My vision for the immediate future is therefore to develop a model for the evolution of the source concerned,” he says.

 

 

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept