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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

HIV Cure – Just another fantasy?
2016-07-27

Description: HIV Cure – Just another fantasy? Tags: HIV Cure – Just another fantasy?

Dr Dominique Goedhals, Prof John Frater,
Dr Thabiso Mofokeng and Dr Jacob Jansen van Vuuren,
attended the lecture. Prof Frater has been working in
collaboration with the UFS Department of Internal
Medicine on HIV resistance and HIV immunology
since 2007.

Photo: Nonsindiso Qwabe

Twenty-years ago, after a person had been diagnosed with HIV, their lifespan did not exceed three years, but thanks to the success of antiretroviral therapy programmes, life expectancy has risen by an average of ten years. However, is antiretroviral therapy always going to be for life? This is the societal issue that Professor John Frater, addressed in his talk at the University of the Free State. He is an MRC Senior Clinical Fellow, Associate Professor and Honorary Consultant Physician in Infectious Diseases at  Oxford University.

Antiretroviral medicine therapeutic

The discovery of antiretroviral therapy - the use of HIV medicines to treat the virus - has had a positive effect on the health and well-being of people living with it, improving their quality of life. Unfortunately, if treatment is stopped, HIV rebounds to the detriment of the patient. Now, research has shown that some patients, who are treated soon after being infected by HIV, may go off treatment for prolonged periods. Work is being done to predict who will be able to stop treatment.

“The difference made by starting treatment earlier is enormous. Delaying treatment is denying yourself the right to health,” Professor Frater says. However, this does not mean that the virus is cured. “A person can live for ten years without being on HIV treatment, but is that enough?” he went on to ask.

Healthy lifestyles encouraged

The National Department of Health will adopt a test and treat immediately strategy later this year to improve patient health and curb the spread of HIV. ,This is another reason why everybody should know their status and start treatment as soon as possible.

Search for a cure continues

More research is being conducted to establish whether HIV can be eradicated. Remission gives hope that a permanent cure may be found eventually. “Will a cure for HIV ever be found? Time will tell,” he concluded.

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