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20 December 2020
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Story Thabo Kessah
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Photo Thabo Kessah
Mbuyiselwa Moloi with student volunteers, Keamogetswe Mooketsi (presenter), Tshumelo Phaladi (producer), and Siphamandla Shabangu (SRC member – Social Justice and Universal Access).
The month of October 2020 marked the first anniversary of the Qwaqwa Campus online student radio, Q-Lit. “It has been a rocky road of sleepless nights, tears, and a lot of challenges. However, we have grown from strength to strength. We have made dreams of ordinary students possible. We have influenced change and inspired students to tap into their talents and potential,” said an elated station manager, Mbuyiselwa Moloi.
The station came in handy during the worst lockdown period of the COVID-19 pandemic when it bridged the communication gap between students and the university to integrate teaching and learning into the programming to ensure that no student was left behind. “With all of the regulations and online learning, Q-Lit had to be reinvented. While it was not an easy journey, we have grown more than ever before. Our August 2020 report shows that we have pulled in more than 1 600 listeners, even amid the learning, unlearning, and relearning processes. It was during this month that we also ran a series highlighting strategic offices led by women on campus as part of our Women’s Month celebration,” Mbuyiselwa revealed.
Looking to the future, the station hopes to obtain a full broadcasting licence from the regulatory body, the Independent Communication Authority of South Africa (ICASA), soon.
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
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
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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.