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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

Shortage of quantity surveyors discussed at UFS

2006-03-24

During the recent visit of the Association of South African Quantity Surveyors (ASAQS) to the University of the Free State (UFS) were from the left Mr Egon Wortmann (Director: ASAQS), Prof Basie Verster (representative of the Free State on the ASAQS and head of the Department of Quantity Surveying and Construction Management at the UFS), Mr Greyling Venter (Chairperson: Free State branch of the ASAQS), Prof DG Brümmer(Vice-President: ASAQS) and Mr Patrick Waterson (President: ASAQS).
Photo supplied

Shortage of quantity surveyors discussed at UFS

“The South African building industry is experiencing an unprecedented high level of economic growth and prosperity. This is causing a definite shortage of registered quantity surveyors,” said Mr Egon Wortmann, Director of the Association of South African Quantity Surveyors(ASAQS) during the association’s recent visit to the Department of Quantity Surveying and Construction Management at the University of the Free State (UFS).

“This shortage is especially noticeable in local and national governments where unqualified and inexperienced staff, consultants and/or facilitators are now appointed,” said Mr Wortmann.

In doing so, the authorities that have adopted this approach are according to Mr Wortmann actually acting illegally and are not in compliance with the legal and statutory requirements of South Africa. “These unprofessional practices are unproductive, it leads to frustration and is strongly condemned by the ASAQS,” he said.

“The service delivery of these unqualified and unregistered service providers is often sub standard and does not comply to the legal requirements of the profession. It may also result in the tarnishing of the image and high professional standards set by the quantity surveying profession,” said Mr Wortmann.

“Universities offering programmes in quantity-surveying and construction management are also negatively affected by the high levels of activity in the building environment. Suitable lecturing staff are leaving the academic institutions as they are attracted to better opportunities being offered in the building industry. The ability of the tertiary institutions to attract young academics, to train them and to keep them in the longer term, is therefore almost impossible”, said Prof Basie Verster, head of the Department of Quantity Surveying and Construction Management at the UFS and representative of the Free State on the ASAQS.

According to Prof Verster the UFS supplies more than its quota of qualified quantity surveyors to the South African building industry. “Although more than 460 students are registered in construction related programmes at the UFS, we are as the ASAQS’s concerned about the shortage of students that can enter the construction industry. In our case, we are experiencing a shortage in black female students,” he said.

“Of the 460 postgraduate students, 38% are black of which 20% are female students. Graduates do also not necessarily stay in the country. As the UFS’s programmes are accredited overseas, a lot of our students leave the country for working opportunities elsewhere,” said Prof Verster.

Mr Patrick Waterson, President of the ASAQS, appealed to quantity surveyors to, when they are approached, consider academic careers or to make themselves available to lecture on a part time basis. “I also appeal to quantity-surveying practices, construction companies and developers to consider taking part in training activities,” he said.

The ASAQS has over the years developed a proud tradition within the quantity-surveying profession. Consequently membership of this organisation is a sought after goal for many members within the building environment. International agreements with various countries are also in place whereby it is mutually agreed that local as well as overseas qualifications are mutually acceptable on a reciprocal basis.

A more recent addition to the list of agreements is the reciprocity agreement entered into with the Royal Institution of Chartered Surveyors which makes it possible for South African based quantity surveyors to practice in over 120 countries worldwide.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
23 March 2006

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