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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

Award-winning photographer exhibits ravages of war, 25 May 2016 until 17 June 2016
2016-06-02

Description: Unsettled exibition Tags: Unsettled exibition

The ruins of the Dimbaza Border Industrial Park built
in the 1970s as a source of cheap labour for industrialists
and ostensible employment for Ciskei Homeland citizens.
This industrial zone collapsed after 1994.
Photo: Images courtesy of the Galerie Seippel. 
All images © Cedric Nunn

Cedric Nunn’s latest photographic exhibition, Unsettled: One Hundred Years War of Resistance by Xhosa Against Boer and British, opened on 25 May 2016 at the Johannes Stegmann Art Gallery of University of the Free State, and will run until 17 June 2016. Since 2014, the exhibition has travelled through South Africa and the USA as well as Germany.

The photographer, documentary film-maker, and artist’s photographic journey was launched in the early 1980s in Durban. In 2011, he won the first FNB Joburg Art Fair Award.

Narratives of the victors and the vanquished

Unsettled deals with the nine wars that Xhosa people were subjected to between 1779 and 1879 in their fight against Afrikaner and British colonial settler forces. Nunn’s art seeks to instigate social change, and highlight lesser-seen aspects of society.

The work emanated from his awareness of a notable gap in the telling of this piece of South African history, as well as the fact that, to date, little has been done to memorialise these acts of colonial aggression and Xhosa resistance. He decided to document the land where these struggles took place.

“Through revisiting this painful past in the contemporary scenes of today, this work attempts to place the present in its factual context of dispossession and conquest,” said Nunn.

Unsettled
forms the first component of what will be a trilogy. The next component will address the legacy of colonial dispossession through “bringing ‘the first inhabitants’ back into the picture by giving a select number of self-describing Khoi, Griqua, and San or Bushmen a contemporary face and presence”. The final component will look at slavery.

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