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09 March 2018 Photo Barend Nagel
Experts engage in stimulating discussion on South Africa future
Moeletsi Mbeki, Prof Phillippe Burger, Dr Ina Gouws, and Waldimar Pelser.

The University of the Free State (UFS) and the broader Bloemfontein community had the privilege of listening to expert opinions on the country’s future at the Wynand Mouton Theatre on the Bloemfontein Campus on 2 March 2018. On stage were Waldimar Pelser, Rapport editor; Prof Phillippe Burger (Department of Economics); Dr Ina Gouws (Department of Political Studies and Governance) from UFS; and author and businessman Moeletsi Mbeki. Together they painted a critical picture of our current and future state of affairs during a remarkable morning hosted by Rapport Regstreeks and kykNET. 

The ills of our economy
Master of his subject, Prof Burger had the audience spellbound when he explained the real issues surrounding our current sluggish economy. He was concerned about the general lack of growth – the major reason for unemployment. Figures have shown that even a slight increase in economic growth, creates an increase in employment. “We know that good education leads to economic growth,” he said. Poor education is one of our big problems, with our school mathematics performance among the worst in the world. He further advised that we should roll back patronage, stabilise public debt, facilitate a true partnership between government and businesses, identify specific growth sectors, address tenure rights, develop supply chains, and develop special skills. “I believe that we should bring back apprenticeships,” he said. 

Political pains
Mostly in agreement with Prof Burger’s contribution, Mbeki wanted to add politics in the mix as a factor that harms our economy. Capturing the audience with his impressive knowledge and insight, he explained that we basically still sat with the British economic systems set out between 1902 and 1910 – the production and export of minerals, fuelled by cheap labour. The mining sector provided a market for agriculture that also used cheap labour. Currently, we sit with two elites: the capital elite that produces, and the political elite that taxes the profits. Hence, the money is not reinvested. “We need new elite, that will invest in the country, instead of consuming the profits,” he said. Who should this be? “Such a coalition must include owners of productive assets who should form an alliance with rural people.”

Remain vigilant
Dr Ina Gouws supported this notion, saying that now was not the time to put our hopes in one leader for a better future. We should remain critical and vocal about our concerns. Political leaders did not always paint a true picture of what the people wanted and felt. 

More interesting and current topics were addressed during the question and answer session, and Pelser ensured that all adhered to a strict schedule, while using the available time optimally. We hope to see more such events on campus, inviting discourse on current topics. 

News Archive

UFS physicists publish in prestigious Nature journal
2017-10-16

Description: Boyden Observatory gravitational wave event Tags: Boyden Observatory, gravitational wave event, Dr Brian van Soelen, Hélène Szegedi, multi-wavelength astronomy 
Hélène Szegedi and Dr Brian van Soelen are scientists in the
Department of Physics at the University of the Free State.

Photo: Charl Devenish

In August 2017, the Boyden Observatory in Bloemfontein played a major role in obtaining optical observations of one of the biggest discoveries ever made in astrophysics: the detection of an electromagnetic counterpart to a gravitational wave event.
 
An article reporting on this discovery will appear in the prestigious science journal, Nature, in October 2017. Co-authors of the article, Dr Brian van Soelen and Hélène Szegedi, are from the Department of Physics at the University of the Free State (UFS). Both Dr Van Soelen and Szegedi are researching multi-wavelength astronomy.
 
Discovery is the beginning of a new epoch in astronomy
 
Dr van Soelen said: “These observations and this discovery are the beginning of a new epoch in astronomy. We are now able to not only undertake multi-wavelength observations over the whole electromagnetic spectrum (radio up to gamma-rays) but have now been able to observe the same source in both electromagnetic and gravitational waves.”
 
Until recently it was only possible to observe the universe using light obtained from astronomical sources. This all changed in February 2016 when LIGO (Laser Interferometer Gravitational-Wave Observatory) stated that for the first time they had detected gravitational waves on 14 September 2015 from the merger of two black holes. Since then, LIGO has announced the detection of two more such mergers. A fourth was just reported (27 September 2017), which was the first detected by both LIGO and Virgo. However, despite the huge amount of energy released in these processes, none of this is detectable as radiation in any part of the electromagnetic spectrum. Since the first LIGO detection astronomers have been searching for possible electromagnetic counterparts to gravitational wave detections. 
 
Large international collaboration of astronomers rushed to observe source
 
On 17 August 2017 LIGO and Virgo detected the first ever gravitational waves resulting from the merger of two neutron stars. Neutron star mergers produce massive explosions called kilonovae which will produce a specific electromagnetic signature. After the detection of the gravitational wave, telescopes around the world started searching for the optical counterpart, and it was discovered to be located in an elliptical galaxy, NGC4993, 130 million light years away. A large international collaboration of astronomers, including Dr Van Soelen and Szegedi, rushed to observe this source.
 
At the Boyden Observatory, Dr Van Soelen and Szegedi used the Boyden 1.5-m optical telescope to observe the source in the early evening, from 18 to 21 August. The observations obtained at Boyden Observatory, combined with observations from telescopes in Chile and Hawaii, confirmed that this was the first-ever detection of an electromagnetic counterpart to a gravitational wave event. Combined with the detection of gamma-rays with the Fermi-LAT telescope, this also confirms that neutron star mergers are responsible for short gamma-ray bursts.  
 
The results from these optical observations are reported in A kilonova as the electromagnetic counterpart to a gravitational-wave source published in Nature in October 2017.
 
“Our paper is one of a few that will be submitted by different groups that will report on this discovery, including a large LIGO-Virgo paper summarising all observations. The main results from our paper were obtained through the New Technology Telescope, the GROND system, and the Pan-STARRS system. The Boyden observations helped to obtain extra observations during the first 72 hours which showed that the light of the source decreased much quicker than was expected for supernova, classifying this source as a kilonova,” Dr Van Soelen said.

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