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UFS geared up to be a leading astronomical research institution

31 January 2023 | Story Leonie Bolleurs | Photo Leonie Bolleurs

UFS unveiled new spectrograph — Assisting Prof Richard Gray with the installation of the spectrograph and the polarimeter were the Electronics and Instrumentation departments at both the UFS and the ASU. Left from the spectrograph, are from the left, front: Innes Basson, Head of the Department of Electronics and Instrumentation, Prof Pieter Meintjes, Senior Professor in the Department of Physics, Mark Jackson, Department of Electronics and Instrumentation, Hélène Szegedi, Lecturer in the Department of Physics, and Prof Richard Gray. At the right, from the spectrograph, front, are Natali Matchelt, master’s student, Izak van der Westhuizen, Lecturer in the Department of Physics; Barend Crous, Department of Electronics and Instrumentation; middle: Wian Smit, master’s student, Joleen Barnard, master’s student; back: Kobus Krüger, Department of Electronics and Instrumentation, Henri Roodt, Department of Electronics and Instrumentation; and Dr Hendrik van Heerden, Department of Physics.

The University of the Free State (UFS) is gearing up to be a leading academic institution in astronomical research. The institution successfully mounted a spectrograph with a polarimeter to the Boyden Observatory 1,5-m telescope that will provide scientists with visual access to both the Northern and Southern Hemispheres.

The instrument, which can be accessed from Boyden, an astronomical research observatory and science education centre a few kilometres outside Bloemfontein, will allow researchers such as the Astrophysics Group at the UFS to do simultaneous polarimetry and spectroscopy of astronomical sources. This is vital for the research they are working on.

Mounting the spectrograph to the telescope and installing the polarimeter completed the upgrade of the 1,5-m telescope and is a leap forward for the astrophysics group at the UFS. The upgraded telescope with the spectropolarimeter, with a valued cost of R1.5 million, will also provide unique opportunities for collaborative research between the Astrophysics Groups at the UFS and researchers from the Appalachian State University (ASU). This adds greatly to the astrophysics research capacity at the university.

Prof Richard Gray, who 2019 started with the development of the astronomical spectrograph for the UFS Department of Physics, is a world-renowned expert in stellar spectroscopy, from the Department of Physics and Astronomy at ASU in North Carolina in the US. He was mainly responsible for the development and building of the instrument.

Prof Pieter Meintjes, Senior Professor from the UFS Department of Physics, describes the moment that installation was completed as a feeling of enormous relief. “It took many hours of hard work, planning and testing to marry the 90-year 1,5-m telescope with the new sophisticated instrument,” he says.

Adding value to graduate programme

Besides the development and installation of the spectrograph, Prof Gray also designed and built a polarimeter which can be integrated with the spectrograph. When placed inside the spectrograph, this piece of equipment transforms the spectrograph into a spectropolarimeter, giving it additional functionality. “This allows us, for example, to detect and analyse polarised light. It enables us to study the effect of magnetic fields in astronomical sources which introduce various polarisation signatures that can be detected with the polarimeter,” explains Prof Gray.

“I am fascinated by the polarimetric capabilities that we never had before. It is a great step forward,” remarks Prof Meintjes.

“The Department of Electronics and Instrumentation at the UFS played an enormous role in the building of several components of the instrument that Prof Gray designed, as well as getting the 1.5-m telescope research ready so that the completed instrument could be mounted to the telescope”, says Prof Meintjes

He envisages that the research instrument will be ready for research purposes by March this year. Up till then researchers, graduates, and third-year students will have the opportunity to spend time on the spectrograph to familiarise themselves with it.

Prof Richard Gray posing with the polarimeter. With him is Prof Pieter Meintjes. (Photo: Leonie Bolleurs)

“Once installation is finalised, the UFS will be the only academic institution in South Africa with access to a 1.5-m telescope paired with a spectrograph. This gives us an edge in terms of our astrophysics programme and the training we provide our students. It also adds so much value to our graduate programme,” he says.

New instrument provides much flexibility

The spectrograph offers Prof Meintjes many possibilities for his research, and he is eager to put the instrument to use. To study binary systems as well as the jets of Active Galactic Nuclei (AGN), you need a spectrograph, preferably with polarimetric capabilities. It can also be applied to finding elements at the surface levels of stars so that their chemical composition can be determined.

“In the past, we needed to send our researchers to Sutherland and they were never guaranteed clear skies. Having this facility gives us so much flexibility,” he says.

Prof Brian van Soelen from the Department of Physics will be a key user of the spectrograph for his research. He is also playing an important role in terms of postgraduate training and research where the spectrograph is applied.

Photo: Mart-Mari Duvenhage

The polarimeter converts the spectrograph to a spectropolarimeter. This instrument, which is mounted on a telescope (in the case of the UFS, it is mounted on the Boyden 1,5-m telescope) enables the user to detect whether radiation from astronomical objects are polarised and to analyse the level of polarisation of the light. Scientists can then, for instance, study the effect of magnetic fields in astronomical sources, which introduce various polarisation signatures (typically with a characteristic level of polarisation).

News Archive

During 2011: Sport

2011-12-01

Our sports stars set their gaols high and with hard work, dedication a good measure of determination they show that they will not give up until these goals are met. A place in the national team or a medal or award in hand is enough proof that our Kovsie sportsmen and women are serious about their successes on the sports field.

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Some of our stars this year were:

Athletics:

Thuso Mpuang, our Kovsie Sportsman of the year, represented South Africa during the World Athletic Championships in Deague, Korea. He obtained the silver medal in the 200m during the World Student Games in Shenzhen, China and a gold medal as a member of the 4 x 100m relay team.

Janette Siebert represented South Africa during the Southern Africa Championships in Maputo, Mozambique.

Boy Soke represented South Africa during the Africa Cross Country Championships in Cape Town. He also represented South Africa during the World Cross Country Championships in China.

Cricket:

The 21-year-old former Kovsie, Obus Pienaar, who was still playing cricket for our university club until the end of the season (end of March), has been playing abroad for the Irish cricket club Waringstown from the end of April 2011.
We are proud of Obus’ achievements, in particular his contribution to the match against the CIYMS. During this game, Obus hit the highest score ever in the Northern Cricket Unions when he scored 244 runs in only 114 balls. This included 22 sixes and 13 fours. During his innings in this match, Obus also broke the July 2004 record of his compatriot, AB de Villiers of the Proteas.

Hockey:

Lesley Ann George represented the Protea Women’s Hockey Team during the series against China, Belgium and Azerbaijan. She was also a member of the Protea Women’s Hockey Team during the Champs Challenge in Ireland. The team finished fifth.

Nicole de Vries represented the Protea Women’s Hockey Team during the series against China, Belgium and Azerbaijan. She was also a member of the Protea Women’s Hockey Team during the Africa Cup in Bulawayo. The team obtained a gold medal.

Hettie Oosthuizen represented the Protea Women’s Hockey Team during the series against China, Belgium and Azerbaijan.

Izelle Lategan represented the Protea Women’s Hockey Team during the series against China, Belgium and Azerbaijan.

Nicole Kemp was a member of the Protea Women’s Hockey Team during the Africa Cup in Bulawayo. The team obtained a gold medal.

Karate:

Elsabe le Roux was a member of the Protea JKA Shotokan Karate Team that participated in the Africa Zone 6 Championships in Maputo where she obtained a gold and silver medal.

Bruno Schwalbach was a member of the Protea JKA Shotokan Karate Team that participated in the Africa Zone 6 Championships in Maputo where he obtained two gold medals. He was also a member of the Protea JKA Shotokan Karate Team that participated in the Common Wealth Karate Championship in Australia where he obtained one silver and two bronze medals. He was a member of the Protea JKA Shotokan Karate Team that participated in the All Africa Games in Maputo Mozambique where he obtained a bronze medal.

Balungile Nchofe was a member of the Protea JKA Shotokan Karate Team that participated in the Africa Zone 6 Championship in Maputo, where he obtained a gold medal.

Netball:

Kovsies’ netball team has performed well over the past year with, amongst others, the inclusion of players in the SA Universities World-cup Group.

Karla Mostert and Maryka Holtzhausen participated during the World Cup in Singapore in the SPAR SA Protea team.

We are also proud of the eight players who have been included in the SA team. They are Zimari Smit, Sheri Duimpies, Ane Botha, Danique du Toit, Nieke Loubser, Karla Mostert, Fikile Mkhuzangwe and Lauren-lee Christians.

At the SA tournament, Ane Botha was named as the centre-court player of the tournament, whilst Karla Mostert was named as the best defending player. Karla has also been included in the SPAR SA Protea team to the All African Games, which start in Mozambique at the end of August.

Rugby:

Boom Prinsloo and Robert Ebershohn are representing the Springboks in the HSBC Sevens World Series.

Soccer:

Gabisile Hlumbane, our Kovsie Sportswomanof the year, is a member of the Banyana Banyana National Soccer Team. The team obtained a bronze medal at the African Women’s Championships during October 2010, a gold medal at the Unity Cup Hosted during December 2010, a silver medal at the COSAFA Women’s Championship hosted during July 2011 and qualified for the London Olympics in 2012.

Squash:

Paul Rodrigues represented the South African U/ 23 team at the All Africa Squash Championships in Johannesburg.

Triathlon:

Nelmaré Loubser represented the SA Elite Team during the World Championships in Spain.

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