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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

State of our campuses: UFS closes campuses until Friday 28 October 2016 to readjust academic programme
2016-10-15

UFS announces strategy for completion of the 2016 academic year

Agreement between UFS management and student leadership in relation to residences

After almost four weeks of student protests about fees at the University of the Free State (UFS) and the subsequent suspension of the academic programme and closing of campuses, the senior leadership announced on 14 October 2016 a strategy to ensure that students will be able to complete the 2016 academic year.

The university on 13 October 2016 announced that it will shut down its Bloemfontein and South Campuses until 28 October 2016 for crucial and complex arrangements to be put in place to readjust the academic calendar and ensure that all students can complete their studies. The senior leadership did, however, make it clear that the university will not be shutting down for the remainder of 2016.

No teaching and learning activities at undergraduate and honours level will be offered between 17 October and 28 October 2016. The university will re-start teaching and learning at undergraduate and honours level in the first week of November 2016.

However, teaching and learning will not take place in the classrooms during November 2016, but through a different mode of delivery that consists of a combination of printed and recorded lectures, study materials and learning aids that will be provided by the university and delivered through Blackboard. In this manner no attempts at disrupting the rest of the academic year will affect our students’ academic programme. Students, however, will sit for the exam on campus.

Students in residence accommodation can return to campus as from 29 October 2016 and it is recommended that students who do not have off-campus internet access return to campus in order to access study material to complete the academic year.A new timetable for exams is still being developed and will be communicated as soon as the arrangements have been finalised.

Faculties have been differently affected by the loss of teaching time. Some faculties like the Faculty of Law have completed their curriculum, while other faculties like the Faculty of Natural and Agricultural Sciences require more teaching time. Some faculties, like the Faculty of Health Sciences, cannot do teaching through alternative modes of delivery.

The needs of the different faculties have been taken into account for developing a rescue plan to complete the 2016 academic year.

  • The Faculty of Health Sciences will continue its classes and clinical rotations as normal for all three schools on the Bloemfontein Campus and in the relevant hospitals. All students registered in programmes in the Faculty of Health Sciences will stay in residences for the full period of their studies and exams. Final-year medical students will graduate in December 2016 as expected.
  • In the Faculty of Economic and Management Sciences, final-year students for the Certificate in the Theory of Accounting (CTA) will stay on campus during October through to December 2016 and their classes and tests will not change.
  • Arrangements for all other faculties and programmes are being prepared and within the next week, students and parents/guardians will receive communication about how curriculum content will be completed and when the final exams will take place.
  • The university is extending the academic year so that we can recuperate all the lost teaching and learning time. The qualifications conferred on the 2016 class will be of the same quality and standards as all UFS qualifications.

The UFS is and will remain a fundamentally contact teaching and learning education university. However, under the current circumstances faced not only by the UFS, but higher-education institutions across the country, the best way of ensuring the integrity of the academic programmes in most faculties is by using an alternative way of teaching and learning. Other South African universities have chosen the same approach to be able to complete the academic year.

Instead of students going to class, they will have content delivered to them where they are (library, computer labs, their own computers, etc.) through Blackboard and printed and electronic material. This is a different way of learning but students will be carefully guided and supported.

Faculties are currently preparing all the necessary materials and instructions to support student learning.Standards and quality will be the same as if students were attending classes. Some faculties require practical laboratory work as part of their curriculum. The exam timetable will be adapted for these students to be able to complete their practical work when the academic activities commences in November 2016. The relevant faculties will communicate the schedule of practical work directly to the students.

Students in their final year will complete their studies during 2016. It is possible that in some cases the graduation ceremony for these students will be in June 2017 instead of April 2017. This will not prejudice students with bursaries, or committed employment in law firms or other businesses. The university will provide the necessary academic transcripts as proof of the completion of the relevant qualifications. None of these changes will affect postgraduate students.

The university will maintain regular communication with students and parents/guardians to update them on the new exams timetable.Faculties will communicate directly with students about issues related to their programmes.

“One of the areas in which significant progress was made, is that we were able to agree on a basis for stability with student leaders. The student protests occurred during an important time in the university’s academic calendar and the readjustment of our academic programme has put tremendous pressure on academic and support services staff, and created anxieties for parents,” said Prof Nicky Morgan, Acting Rector of the UFS.

“The senior leadership restates its commitment to free education as well as its willingness to stand together with students and other public universities to impress on government the urgency to decide on a time frame for the roll-out of free higher education for the poor and missing middle. We will use the next two weeks to meet with the leadership of Universities South Africa to coordinate collective action in this regard. We will furthermore also roll out a series of activities to inform and educate students and the general public on different models and experiences of providing free higher education,” he said.

The strategy to readjust the 2016 academic year is applicable to students on the Bloemfontein and South Campuses.


Released by:

Lacea Loader (Director: Communication and Brand Management)
Telephone: +27 51 401 2584 | +27 83 645 2454
Email: news@ufs.ac.za | loaderl@ufs.ac.za
Fax: +27 51 444 6393

 

State of our campuses #15: UFS closes campuses until Friday 28 October 2016 to readjust academic programme

State of our campuses #14: All academic activities on UFS campuses remain suspended on 13 and 14 October 2016

State of our campuses #13: Availability of information about plans for remainder of UFS 2016 calendar year

State of our campuses #12: All academic activities at UFS campuses suspended for 11 and 12 October 2016

State of our campuses #11: Academic activities on UFS campuses continue

State of our campuses #10: Impact of non-completion of the 2016 academic year on UFS students 

State of our campuses #9: Academic programme on all UFS campuses to resume on Monday 10 October 2016

State of our campuses #8:  UFS extends vacation as from 28 September until 7 October 2016, 28 September 2016

State of our campuses #7: All three UFS campuses will be closed today, 27 September 2016.

State of our campuses #6: All UFS campuses reopen on Tuesday 27 September 2016

State of our campuses #5: UFS campuses to remain closed on Monday 26 September 2016

State of our campuses #4: Decisions about the UFS academic calendar

State of our campuses #3: UFS campuses closed until Friday 23 September 2016 

State of our campuses #2: UFS Bloemfontein and South Campuses closed on Tuesday 20 September 2016 (19 September 2016)

State of our campuses #1: Academic activities suspended on UFS Bloemfontein Campus (19 September 2016)

 

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