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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

Great turnout for Hannes Meyer Symposium in Cardiothoracic Surgery
2017-05-05

Description: Hannes Meyer Symposium  Tags: Hannes Meyer Symposium

Symposium attendees watch attentively as
Dr Johan Brink demonstrated a MAZE procedure
with a pig’s heart.
Photo: Supplied

The University of the Free State’s Faculty of Health Sciences hosted the annual Hannes Meyer Symposium in Cardiothoracic Surgery. The symposium was organised by Prof Francis Smit, head of the department of Cardiothoracic Surgery at the UFS, with the support from the Society of Cardiothoracic Surgeons of South Africa and the European Association of Cardiothoracic Surgery (EACTS). Over the past 16 years this symposium has steadily been growing in stature and prestige leading to the resounding success that was this year’s event.

Medical advancements explored
The aim of the symposium is to provide an overview of the latest advances in Cardiothoracic Surgery and perfusion as well as providing hands-on training via simulation to trainees from South Africa and the rest of the African continent. Didactic lectures and papers by registrars were an integral component of the symposium. The South African community was represented by various heads of departments, trainees, senior specialists and perfusionists from all the training centres in the country. There were also delegates representing Uganda, Mozambique, Nigeria and Zambia.

Heart surgery off to new heights
Simulation in Cardiothoracic Surgery and Perfusion can be compared to airline pilots with high risk, with complex surgeries being first done in simulators before being attempted in the real world. The UFS is proud to have a state-of-the-art simulation facility, which was used to facilitate the programme.

The range of simulation was extensive and included simple procedural models to complex full theatre setups with Human Performance Models in perfusion that simulated crisis scenarios with the aid of computerised devices that react in real time to human intervention.

Industry support highly appreciated
This event was coordinated by Dr Jehron Pillay, senior registrar in the Department of Cardiothoracic Surgery and Marilee Janse van Vuuren, deputy-director clinical technology, in the department. This was the first time that such extensive simulation models were used in the programme and judging from the positive response received, it has certainly set the benchmark for all future events.

The event has received invaluable support over the years from EACTS that has selected Bloemfontein as the site of its African training programme as a result of the high level of training and education achieved here.

The academic discussions were chaired by Profs Marko Turina and Jose Pomar (past presidents of EACTS) and Pieter Kappetein (past secretary general of EACTS) who are extremely well known internationally for their contribution to advancing Cardiothoracic training and education.

Our guests from EACTS presented didactical lectures on research methodology, international randomised trials and discussed recent developments and controversies in cardiothoracic surgery.

Registrars from all South African units presented a thoracic and cardiac surgery paper from each unit highlighting specific disease conditions, moderated by heads of departments and the international panel.

An event of this magnitude requires significant financial support and the medical industry in South Africa stepped up to the plate in providing financial and logistical support in order to make it possible.

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