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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

Inspiration from an Olympic Champion for Spring graduandi
2012-09-20

Photo: Hannes Pieterse
20 September 2012

The guest list for the Spring Graduation ceremony of the University of the Free State included an Olympic gold medallist, a former Miss South Africa finalist and the Prime Minister of a neigbouring country.

The new graduates could draw inspiration from Olympic swimming champion Chad le Clos, who was the guest speaker at the event. Also attending was the Prime Minister of Lesotho, the Honourable Thomas Thabane, who came to watch his grandson graduating from Kovsies. Sharing a stage with Le Clos was Rolene Strauss, a medical student, who was among the top five contestants at last year’s Miss South Africa competition.

Le Clos, who became a national hero in July when he won a gold medal in the 200 m butterfly at the Olympic Games by beating American swimming legend Michael Phelps, told new graduates to strive for the impossible. Giving them insight into his remarkable achievement, Le Clos told them nobody had expected him to beat Michael Phelps. “Even I thought it was impossible to achieve. Always have a goal and work towards it,” he told them and said his ambition was to build up swimming in South Africa. Le Clos said he hoped that by 2016 there would be more swimmers making South Africa proud.

Prof. Jonathan Jansen, Vice-Chancellor and Rector of the university, delivered an Olympic-inspired message. Quoting the motto of the modern Olympic Games, ‘faster, higher and stronger’, Prof. Jansen told the new graduates that they had to be better than those who came before them. “I expect my students in a troubled country to learn how to be different, faster, higher and stronger. Faster means efficiency; it means to be responsive to those in need."

Drawing lessons for the country from Le Clos' victory, Dr Khotso Mokhele, Chancellor of the University, told the graduates to choose optimism. Referring to the Marikana mine tragedy, Dr Mokhele said the country was far from taking the last stroke. “Even if it looks as if the curtain is down; remember that final stroke of Chad le Clos and how the great Michael Phelps was defeated.”
 

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