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27 January 2018 Photo Supplied
Physics excels in Afrikaans Academy for Science and Art symposium
UFS postgraduate students in the Department of Physics attended the Student Symposium of the Afrikaans Academy for Science and Art. From the left are Izak van der Westhuizen (PhD) and Hélène Szegedi (MSc), who both came in second place in their respective sessions. On the right of the banner are Dina Oosthuizen (PhD) and Lucas Erasmus (MSc),who claimed first place in their respective sessions.

Every year postgraduate students from all universities and universities of technology in the country are invited to participate in the student symposium of the Afrikaans Academy for Science and Art.

Honours, master's, and doctoral students from different universities in different scientific fields, including chemistry, physics, computer science, engineering, geography, medicine, etc. participated in the symposium. From the Department of Physics at the University of the Free State (UFS), Dina Oosthuizen (PhD) won a first prize in session 1, Hélène Szegedi (MSc) won second prize in session 2, where Lucas Erasmus (MSc) claimed first place and Izak van der Westhuizen (PhD) took second place in session 3.

'We love what we do'

Students from the UFS do incredibly well each year at this symposium. “These achievements speak of the excellent education and training we receive, especially in the department. Physics students not only have lecturers and supervisors who are well-respected in their own research fields but have access to world-class instruments in our physics laboratories. We also love what we do and see it as a privilege to share our work.

“The symposium is also an opportunity to gain valuable experience in presenting our own research as well as getting exposure to various research topics, methods and scientific disciplines,” said Hélène Szegedi, who is a junior lecturer in the Department of Physics

 

"We love what we do
and see it as a privilege
to share our work."
Hélène Szegedi
Lecturer in the
Department of Physics


Symposium unique on many levels



Although every participant has to present in Afrikaans, it is not only Afrikaans-speaking students who participate in the symposium. Szegedi said: “The language requirement for the symposium does, however, create the opportunity to develop Afrikaans further as a science language, and we sometimes have to coin new words or terms to describe our research, making this symposium unique and beneficial on many levels.”

Read a preview of the research presentation here.

News Archive

Two scientists part of team that discovers the source of the highest energy cosmic rays at the centre of the Milky Way
2016-03-22

Description: Giant molecular clouds  Tags: Giant molecular clouds

Artist's impression of the giant molecular clouds surrounding the Galactic Centre, bombarded by very high energy protons accelerated in the vicinity of the central black hole and subsequently shining in gamma rays.
Artist's impression: © Dr Mark A. Garlick/ H.E.S.S. Collaboration

Spotlight photo:
Dr Brian van Soelen and Prof Pieter Meintjes of the UFS Department of Physics.
Photo: Charl Devenish

H.E.S.S. (High Energy Stereoscopic System) scientists publically revealed their latest galactic discovery in the international science journal, Nature, on 16 March 2016. These scientists were able to pinpoint the most powerful source of cosmic radiation – which, up to now, remained a mystery.

Part of this team of scientists are Prof Pieter Meintjes and Dr Brian van Soelen, both in the University of the Free State (UFS) Department of Physics. Dr Van Soelen explains that they have discovered a proton PeVatron – a source that can accelerate protons up to energies of ~1 PeV (10^15 eV) – at the centre of the Milky Way. The supermassive black hole called Sagittarius A has been identified as the most plausible source of this unprecedented acceleration of protons.

The protons are accelerated to Very High Energy (VHE) gamma rays. The energy of these protons are 100 times larger than those achieved by the Large Hadron Collider at CERN (the European Organization for Nuclear Research).

According to Dr Van Soelen, the fact that this research has been published in Nature demonstrates the importance and pioneering nature of the research conducted by H.E.S.S. The H.E.S.S. observatory – operational in Namibia – is a collaboration between 42 scientific institutions in 12 countries.

In 2006, H.E.S.S. was awarded the Descartes Prize of the European Commission – the highest recognition for collaborative research – and in 2010 the prestigious Rossi Prize of the American Astronomical Society. The extent of the observatory’s significance places it among the ranks of the Hubble Space Telescope and the telescopes of the European Southern Observatory in Chile.

“The next generation VHE gamma-ray telescope,” Dr Van Soelen says, “will be the Cherenkov Telescope Array (CTA), which is currently in the design and development stage.” Both Dr Van Soelen and Prof Meintjes are part of this project as well.

H.E.S.S. has issued a complete statement about the paper published in Nature.

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