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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.

polarimeter
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.

 

Tsebo Matsoso and Siphephelo Ndlovu

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

Prof Frederick Fourie to step down as UFS rector
2008-09-08

“It is with sadness that I hereby announce my intention to step down as rector and vice-chancellor of the University of the Free State (UFS) in the 4th quarter of this year.

Obviously this decision has not been taken lightly. After careful consideration I am, however, convinced that this is as far as I can take the UFS as vice-chancellor and rector. This flows primarily from the exhausting times that I have experienced during the past nine years, first as vice-rector (since 1999) and then as rector (since 2003), in managing and implementing several complex strategic projects.

The challenges and complexities of continuous change management at a higher education institution, and specifically the demands of further dynamic development and transformation at the UFS, demand enormous amounts of emotional energy and drive. For me the stress due to, especially, the political divisions and tensions in the UFS Council and the broader university community during the past year has been extremely draining. The broader institution and its people also show signs of trauma.

I think it is time for new and fresh leadership, especially in the light of the transformation challenges of the UFS.

I have thus decided to step down in the interest of transformation and the further dynamic development of the UFS.

Having been on sabbatical leave since May, I will not return to take up my post. I will remain on leave until my official date of retirement from office. (The exact date must still be determined.)

I am grateful for the opportunity to have been at the helm of the UFS and to help the institution cross several bridges. During the past nine years I have been privileged to lead large strategic projects together with many dedicated and talented UFS colleagues. It has been a wonderful experience of thinking and working together in order to elevate the functioning of the University to new levels in several key areas.

One of the most important projects was the financial turnaround strategy of 2000-2005, which took the UFS from a financial crisis to a situation where currently it annually has almost R100 million of discretionary funding available to spend on strategic projects, and where staff remuneration and promotion opportunities have increased dramatically since 2000. In this period the UFS has also grown from approximately 10 000 students to more than 27 000 in 2008.

A second was the strategy to invest strongly in the academic core and notably research, research capacity and research apparatus. Since 2003 research outputs have increased by approximately 50% - a significant accomplishment of our researchers and faculties. In conjunction with this, the launch of the six strategic academic clusters (focus areas) should create the basis for the continued growth in the national and international stature of the UFS in future. The development of the national leadership role of the UFS with regard to community service also was a special and successful project.

A third large strategic project was the progress with regard to diversity, the balanced multilingualism policy in the academe as well as the administration, the employment equity plan, the UFS transformation plan and especially the institutional charter – which could lay the foundation for a university where one and all can experience a true sense of belonging amidst diversity. These have been important steps that we can feel proud of (although much work obviously remains with regard to non-racialism and also non-sexism).

As far as residences are concerned, it was historically significant that this time, in contrast to 1997/8, the UFS succeeded in crossing the bridge of diversity and integration in residences – with due regard to the difficulties we faced. Hopefully this will considerably ease the task of my successor and her/his management team in managing diversity and in pursuing best practice transformation.

A fourth large project was the large-scale upgrading and development of infrastructure, academic buildings and facilities as well as support service facilities, student facilities and pedestrian walkways. The objective was a campus of the highest quality and aesthetics to effect a lasting improvement in their work- and living environment for staff and students. Indeed, the UFS Main Campus today is seen as an example of sensitive and high quality campus planning.

Other initiatives which haven’t borne fruit yet are, for example, those with regard to entrepreneurial activities, sport development and sport business development, and the possible establishment of an engineering programme or faculty at the UFS.

On the whole the most important thing for me has been the progress in establishing a deep commitment to quality and equity/fairness and in boosting the national and international profile of the UFS as a high quality progressive university. Of course, justice, equity and quality intrinsically are challenges which require daily dedication to make it an ingrained habit.

I wish to thank all those people with whom I could work during the past years in tackling large and complex challenges with mutual loyalty, shared wisdom and effort – from the Financial Turnaround Team to the Exco, the Executive Management, the Faculties, the Senate, support service divisions, the University Council and several committees and task teams”.

Frederick C.v.N. Fourie
Rector and Vice-Chancellor
University of the Free State

Prof Frederick Fourie has been with the UFS since 1976. After obtaining a PhD in Economics from Harvard he was appointed professor at the age of 29 in 1982, head of the Department of Economics in 1992, Distinguished Professor in 1998, Dean of the Faculty of Economic and Management Sciences in 1997, Vice-rector: Academic in 1999 and vice-chancellor in 2003.

Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za  
8 September 2008
 

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