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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

Meet our Council: Marius Swart – a Councillor with deep roots in the UFS
2017-07-12

Description: Meet our Council: Marius Swart – a Councillor with deep roots in the UFS Tags: Marius Swart, University Council, Mediclinic, cardiothoracic surgeon, Faculty of Health Sciences, Department of Cardiothoracic Surgery  

Marius Swart, Alumni election on the UFS Council.
Photo: Stephen Collett

Marius Swart, a Kovsie alumnus, is an Alumni election on the University Council. Not only is he a Kovsie alumnus, but all four of his siblings and their spouses are Kovsie alumni, as well as all three his children.   

Interest in future decisions at the UFS
He is currently practicing as cardiothoracic surgeon at Mediclinic in Bloemfontein, but has always been involved with the Faculty of Health Sciences at the university.  He spent eight years as consultant in the Department of Cardiothoracic Surgery and recently became a registered student again when he enrolled for an interdisciplinary PhD.  He is currently also supervisor for the research projects of undergraduate medical students.

Thus, Marius no doubt has a substantial interest in the issues and future decisions at the UFS.

Guard against retroformation
"Higher education is a challenging environment and expectations about excellence and human development are being tested.  Transformation is on everybody’s lips, but we have to guard against what I would call retroformation – moving back to old regimes and new forms of exclusion," he says.

Marius is excited to begin his term with a new Rector and Vice-Chancellor.  He realises that many challenges awaits him as councillor on the way forward, but he is ready to pull his weight in Council.

"My own daughter is involved in the challenges students are experiencing on a daily basis, and my wife is supporting a first-generation rural student.  The university should be sensitive to these students.  Empowering them can bring change to communities."

His interests are varied and it is clear that he has a vision for a better world.

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