Latest News Archive

Please select Category, Year, and then Month to display items

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

UFS policies want to help all students

2005-03-09

The death of Hannes van Rensburg, a first-year student from the JBM Hertzog residence, this past weekend, placed various aspects of student life in the spotlight. Dr Natie Luyt, Dean: Student Affairs at the University of the Free State (UFS), and the Student Representative Council (SRC) of the UFS explain which policies are in place to counter these practices.

At all tertiary institutions there are rules and policies to guide students and provide direction for certain behaviour and practices. The same applies to the University of the Free State (UFS).

“At the beginning of the year the UFS provides every residence committee with a manual to establish a framework for meaningful and orderly relations within and among residences on the campus,” said Dr Natie Luyt.

However, it is one thing to set rules, but it is an impossible task to enforce all aspects thereof. Policies currently in place include an alcohol policy, a policy on the induction of first years and a policy on banned practices in residence orientation.

“The alcohol policy was compiled in cooperation with students and their input was constantly asked,” said Dr Luyt. We also liaise on a continuous basis with residences and senior students to encourage the responsible use of alcohol, especially around activities like intervarsities and Rag.

In the policy, recognition is given to the right and voluntary and informed choice of every individual to use alcohol on the UFS campus in a responsible way.

Guidelines for the use of alcohol on campus include among others the following:

Only authorised points of sale will be permitted on campus. In this case it is the various league halls in most of the male residences on campus.

Alcohol will only be made available during fixed times and is not permitted in residence rooms.

All alcohol-related functions are regulated and an application for a temporary alcohol license must be obtained from the Dean: Student Affairs.

The UFS obtained a liquor license in March 2004 which must be administered by senior leagues in various residences on campus. Normal liquor license conditions and the county’s liquor laws apply. Liquor can only be sold to members of the senior league (or special guests) and also to persons over the age of 18 years. Liquor may not be used in public (outside the senior league) or on campus.

The senior leagues may only be open three nights per week and within prescribed times. No liquor could be used in any other place than the senior league halls. Senior leagues could buy liquor from club monies generated by themselves.

The right of senior leagues to serve liquor was suspended by the Rector and Vice-Chancellor the UFS, Prof Frederick Fourie, on Monday 7 March 2005 – pending an investigation of the recent events on campus.

The policy on banned practices include among others that no swearing and shouting at first-years may take place, no first-year student may be targeted individually, no senior may enter the room of a first-year student without an invitation or permission from that first-year student and no senior under the influence of alcohol may have contact with first-year students.

The induction of first-year students takes place by means of three functions, namely an information function (the introduction to the various facets and possibilities of the university system), an induction function (the first-year student becomes involved in various campus and residence activities) and a development function (the first-year student is motivated to take charge of his development potential).

No first-year induction activity may commence before the residence committee’s contracting with the senior students is not completed. This meeting is attended by the residence head and all senior students. The induction policy, residence induction policy of first-year students and first-year rules are discussed.

The senior students sign an attendance list to show that he/she was informed about the policies. A senior who does not sign, may not be involved with any induction session with first-year students.

No physical contact is allowed during the conclusion of the first-year students’ official induction period. The induction of first-year students as full members of the residence is a prestige event, presented by the residence committee. No physical or degrading activities may take place.

The Dean: Student Affairs also has a daily meeting with the primarii of all the residences during the induction period. This helps to monitor the situation and counter any problem behaviour or tendencies.

“Enforced behaviour – where a senior student forces a first-year student to do something against his/her own free wil – is not allowed. Where there is any sign of this, it is met wortel en tak uitgeroei,” said Dr Luyt.

“In any group of people – whether it is a group of students or people at a workplace – there will always be those who will break the rules or those who would like to see how far they could push it.

The SRC, the UFS management and myself are and will stay committed to make each student’s life on this campus a school of learning and an experience which would be remembered for ever,” said Dr Luyt.

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept