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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

DNA sequencer launched at the UFS
2013-11-25

Dr Gansen Pillay, Deputy Chief Executive Officer of the National Research Foundation, explaining to the scholars what will be expected of them.

The University of the Free State (UFS) can now collect immensely valuable data on drug resistance in HIV/Aids and TB with the new DNA sequencer that was launched recently at the International workshop on HIV/AIDS and TB drug resistance at the Bloemfontein Campus.

The DNA sequencer will allow the Free State province to produce viral and bacterial genetic data to fight the local development of HIV/ Aids and TB drug resistance.

The HIV and TB epidemics have expanded very fast and South Africa now has the largest HIV and TB treatment programme in the world, with over 2 million patients on treatment. However, these successful treatment programmes are now being threatened by the appearance of drug resistance.

The Free State province has been at the forefront of fighting HIV drug resistance in South Africa and has one of the most advanced treatment programmes for the management of resistance strains in the country. In addition, researchers at the University of the Free State are leading partners in the Southern African Treatment and Resistance Network (SATuRN; www.bioafrica.net/saturn), a research network that has trained over 2 000 medical officers in the treatment of drug resistance strains.

The Department of Medical Microbiology and Virology in the Medical School at the UFS has partnered with the provincial department of health, the Medical Research Council (MRC) and the Delegation of the European Union to South Africa to fund a dedicated DNA sequencer machine that will be used to generate HIV and TB drug-resistance results. This new machine will enable cutting-edge research to take place, using the data in the province and, importantly, support patients with resistance strains to have access to advanced genotypic testing techniques.

“HIV drug resistance is a very serious problem in South Africa, and the recent advances in DNA testing technology allow clinicians in the province to access drug resistance testing, which enables them to manage patients appropriately who fail treatment, and use the results to cost-effectively extend and improve patients’ lives,” says Dr Cloete van Vuuren, Specialist in Infectious Diseases at the UFS’s Faculty of Health.

Dr Dominique Goedhals, pathologist from the Department of Medical Microbiology and Virology at the UFS, adds: “We have been looking forward to expanding our work with the clinicians and researchers, using DNA sequencing to shed light on the causes and consequences of drug resistance in urban and rural settings in the province.”

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