Latest News Archive

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

UFS law experts publish unique translation
2006-06-21

Attending the launch of the publication were from the left:  Prof Boelie Wessels (senior lecturer at the UFS Faculty of Law), Prof Frederick Fourie (Rector and Vice-Chancellor of the UFS), Prof Johan Henning (Dean: UFS Faculty of Law) and Adv Jaco de Bruin (senior lecturer at the UFS Faculty of Law). Prof Wessels translated the treatise from corrupted medieval lawyer Latin into English, Prof Henning is the leading author and initiator of the publication and Adv de Bruin assisted with the proofreading and editing. Photo: Stephen Collett

UFS law experts publish unique translation of neglected source of partnership law

The Centre for Business Law at the University of the Free State (UFS) has translated a unique long neglected Roman-Dutch source of the law of partnership law from Latin into English.  This source dates back to 1666. 

The book, called Tractatus de Societate (A Treatise on the Law of Partnership), by Felicius and Boxelius is published as Volume 40 in the research series Mededelings van die Sentrum vir Ondernemingsreg/Transactions of the Centre for Business Law.  It is the first translation of this Roman-Dutch source into English and comprises of a comprehensive discussion of the South African common law of partnerships.  

“Apart from various brief provisions dealing on a peace meal and an ad hoc basis with diverse matters such as insolvency, there is no comprehensive Partnership Act in South Africa.  The law of partnership in South Africa consists of South African common-law, which is mainly derived from Roman-Dutch law,” said Prof Johan Henning, Dean of the Faculty of Law at the UFS.  Prof Henning is also the leading author and initiator of this comprehensive publication.

“Countries such as America, England, Ireland and The Netherlands have drafted or are in the process of establishing new modern partnership laws in line with new international guidelines, practices and commercial usages,” said Prof Henning.

“However, in South Africa the most recent policy document released by the Department of Trade and Industry explicitly excludes partnership law from its present company law reform programme and clearly regards this as an issue for another day,” said Prof Henning.

“Unless there is a political will to allocate the necessary resources to a comprehensive partnership law revision program, it is a practical reality that South Africa will not have a modern Partnership Act in the foreseeable future,” said Prof Henning. 

According to Prof Henning South African courts have been using the Roman-Dutch partnership law sources as authority.  “The English Partnership Act of 1890 is not binding and the English text books should therefore be approached with caution,” said Prof Henning.

“A treatise on the law of partnership that has been regarded by South African courts as an important common law authority is that of  a Frenchman by the name of Pothier.  This treatise was translated into English and was regarded as an au­thority of significance in The Netherlands towards the end of the eighteenth century,” said Prof Henning. 

“Pothier’s opinions are however not valid throughout in the Roman-Dutch partnership law as it did not apply to the Dutch province of The Netherlands and it sometimes also rely on local French customs for authority,” said Prof Henning.

For this reason the Centre for Business Law at the UFS decided to focus its attention again on the significance of the comprehensive treatise of Felicius and Boxelius on the Roman-Dutch partnership law.  Felicius was an Italian lawyer and Boxelius a Dutch lawyer.

This long neglected source of partnership law was published in 1666 in Gorkum in The Netherlands.  "A significant amount of Roman-Dutch sources of authoritive writers trusted this treatise and referred to it,” said Prof Henning.

The translation of the treatise from corrupted medieval lawyer Latin into English  was done by Prof Boelie Wessels, a very well-known expert on Roman Law and senior lecturer at the UFS Faculty of Law.  Prof Wessels, who  has 15 degrees, spent almost ten years translating the treatise.  The proofreading and editing of the translation was done by Prof Henning and Adv Jaco de Bruin, a senior lecturer at the UFS Faculty of Law.

“We want the South African courts to use Volume 40 in the research series Mededelings van die Sentrum vir Ondernemingsreg/Transactions of the Centre for Business Law as the primary source of reference when cases where Roman-Dutch Law partnership law principles are involved, are ruled on,” said Prof Henning.

The first part of the publication comprises of selected perspectives on the historical significance of the work as well as a translation of selected passages. “The intention is to follow this up expeditiously with the publication of a very limited edition of a complete translation of the work,” said Prof Henning.

A total of 400 copies of the publication will be distributed to all courts, the Appeal Court and the Supreme Court.

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

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