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13 May 2022 | Story Leonie Bolleurs | Photo Leonie Bolleurs
Astrophysics
The Astrophysics Research Group in the UFS Department of Physics recently collaborated with the Institute of Astrophysics of Andalusia (IAA) in Spain and the University College of Dublin (UCD) in Ireland, to install a robotic telescope at the Boyden Observatory. Pictured here, are from the bottom, Teboho Rakotsoana and Simon Rakotsoana from the UFS; Emilio J Garcia from the Institute of Astrophysics of Andalusia; Prof Pieter Meintjes; and Prof Antonio M Carrillo from UCD.

The Astrophysics Research Group in the Department of Physics at the University of the Free State (UFS) is part of an international collaboration with the Institute of Astrophysics of Andalusia (IAA) in Spain and the University College of Dublin (UCD) in Ireland, which focuses on measuring the brightness of transient sources. Knowledge gained from studying these cosmic X-ray sources, which seem to appear in the sky for a short time before disappearing, will lead to a more complete and better understanding of the universe, believes Prof Pieter Meintjes, Professor of Physics and Head of the Astrophysics Programme in the Department of Physics.

To facilitate these observations, a robotic telescope network has been established, with the Boyden Observatory selected as one of the sites for BOOTES 6 (a Burst Observer and Optical Transient Exploring System).

The UFS and the IAA started working on this project more than two years ago. The foundation and pier were built through a local tender, and in January 2020, part of the dome of the structure housing the telescope arrived by ship. Due to the COVID-19 pandemic there were some delays, resulting in the crew from Spain only arriving in South Africa with the telescope and hardware in November 2021, but having to return to their country without completing the installation. They returned in April, and in early May completed assembling the telescope in collaboration with UFS researchers and technicians.

Robotic telescope opportunity to further own research

The main scientific objective of the robotic telescope is to observe and monitor the optic counterparts of gamma-ray bursts as quickly as possible when detected from space or other ground-based observatories.

Prof Meintjes says they will use the telescope to observe these transient sources that goes into an eruptive phase for a short span of time. “Since BOOTES has an enormously fast slew rate, it can start observations of erupting sources within a few seconds, which allows the Astrophysics Research Group to get data very quickly. This will certainly give us an edge over other international astronomy groups that are also involved in the same type of research,” says Prof Meintjes, the local coordinator of the project who is overseeing the whole operation locally. 

He explains the importance of monitoring these packets of enormous energy. “By observing the optical afterglow of the gamma-ray bursts, we can establish its point of origin in space. Furthermore, the shape of the optical afterglow light curve gives insight into the type of mechanism behind the gamma-ray burst, i.e., whether the burst is produced by a collision between two neutron stars or by the explosion of a hypernova event.” 

The knowledge gained with research made possible by the robotic telescope will lead to a more complete and better understanding of the universe. – Prof Peter Meintjes

The UFS Astrophysics Research Group, with its research focus on high-energy astronomy and the physics behind gamma-ray bursts, has a particular interest in this project. As the local custodians of the project and in terms of a memorandum of understanding, the group is guaranteed a certain amount of telescope time for its own in-house observation programmes.

Project expands UFS’ international research footprint

Besides the opportunity for knowledge exchange, this project establishes Bloemfontein as a region where research of international quality is being done and will help to attract talented learners to the UFS. “The successful operation of the robotic telescope may also draw more international groups to bring robotic telescopes to Boyden, thus expanding our international research footprint,” he adds. 

The fact that the Boyden Observatory is in the Southern Hemisphere and has access to the galactic centre region with its host of very interesting astronomical objects and the Magellanic Clouds, makes it a very attractive site for astronomical research,” says Prof Meintjes. 

(Dr Pat van Heerden from the UFS Department of Physics. Photo: Supplied)

“We also have a number of years of experience in robotic telescopes in the sense that we have been hosting the Watcher telescope, operated by the University College Dublin in Ireland, since 2001. Once mounted in middle May 2022, this will then be Boyden’s second robotic telescope.”

News Archive

Lecture on interpretations and translations of San place names
2011-09-23

Prof. Peter Raper, recently appointed as Honorary Professor: Linguistics, in the Department of Language Management and Language Practice at the University of the Free State, will deliver his inaugural lecture on Tuesday evening, 27 September 2011. His topic for the evening is “Interpretations and translations of Bushman (San) place names”. With this inaugural lecture, he also introduces an interesting one-day international colloquium on the theme: “Name-change planning – striving towards authenticity”.A panel discussion about street-name changes in Bloemfontein forms part of this colloquium and promises to elicit a stimulating debate.

Prof. Raper is probably better known for three popular place-name dictionaries, Streekname in Suid-Afrika en Suidwes, published in 1972; the Dictionary of Southern African Place Names, published in 1987, updated in 1989 and published in 2004 with some additions as New dictionary of South African place names; and Hottentot (Khoekhoen) place names, a dictionary compiled in collaboration with the famous Prof. G S  Nienaber (a former Kovsie). In fact, Prof. Raper’s work is a continuation of their world-renowned series, Toponymica Hottentotica, which was published between 1977 and 1981. It is generally regarded as the most authoritative work on Hottentot place names. His current interest in Bushman place names builds on this pioneering work and is actually also a re-evaluation of the underestimated role of the Bushman with regard to place naming in South Africa up to now. His work offers a new perspective on what could be regarded as the “first” or earliest names of places in South Africa and brings a sobering perspective to the current debates regarding place-name changes where various claims are made about “who has given the name first”.

However, Prof. Raper is also known for his role in the standardisation of place names, both nationally and internationally. In South Africa, he has served on the South African National Place Names Committee (1972-1999), the South African Geographical Names Council (1999-2002) and, since 1981, on the Names Society of Southern Africa. Currently, he is an honorary member of this association. Since 1984, he has also been serving on the United Nations Group Experts on Geographical Names and has even been the Chairperson of this Leading international standardisation body (1991-2002).

Apart from this, Prof. Raper regularly publishes his research on geographical names in a variety of academic journals and still participates in the most important national and international conferences on names on a regular basis. Prof. Raper is honoured as South Africa’s foremost names expert.

His inaugural lecture will introduce a colloquium on names planning, presented by his host department. Experts from Lesotho, Zimbabwe and the USA are participating in the proceedings, amongst others, the current Chairperson of the Names Society of Southern Africa, Prof. Adrian Koopman (University of KwaZulu-Natal).

RSVP: Joy Maasdorp on +27(0)51 401 2405 or maasdorpjh@ufs.ac.za before or on Thursday, 22 September 2011.

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