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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

Hearing loss a silent public health crisis in South Africa
2017-03-27

Description: Hearing loss a silent public health crisis in South Africa Tags: Hearing, Deaf, World Hearing Day
Dr Magteld Smith engages on the topic of hearing loss
and how it coincides with the commemoration of
World Hearing awareness during the month of March.
Photo: Oteng Mpete 

Communication is a principal challenge for people with hearing loss. It can be difficult to negotiate everyday interactions, whether in the workplace, on the street, in classrooms, courts, during consultations with health professionals, or even when contacting the police. The World Health Organisation’s (WHO) World Hearing Day is an annual advocacy event held each year on 3 March to raise awareness and promote ear and hearing care across the world. In many countries this awareness campaign usually starts on 3 March but many continue to create awareness for the full month of March. 

Hearing loss is a global reality
According to Dr Magteld Smith, a researcher at the University of the Free State (UFS) School of Medicine’s Department of Otorhinolaryngology, unaddressed hearing loss poses a high cost for the economy globally and has a significant impact on the lives of those affected. Interventions to address hearing loss are available in South Africa but are not accessible or affordable for most citizens. This is partly because not only persons with hearing loss but also people with disabilities experience barriers in accessing services that many of us take for granted, including health, education, employment, and transport as well as information. These difficulties are exacerbated in less-advantaged communities.

“WHO estimates that there are more than 360 million persons with hearing loss globally. The statistics in South Africa are unreliable due to the different definitions used by Statistics South Africa and the absence of training of the officials who conduct and collect statistics concerning hearing loss in South Africa,” says Dr Smith. 

According to Dr Smith, analysis from retrospective studies reflects that about 17 out of 1 000 infants are born daily in South Africa with severe to profound hearing loss. However, Dr Smith states that the number could be higher because of late diagnosis, high levels of undiagnosed and untreated hearing loss. This excludes young adults, adults and the elderly as well as children with acquired (become deaf after birth) hearing loss.

Crisis that needs urgent intervention 
Dr Smith says hearing loss is an emergency which the South African government fails to prioritise. She says that research published confirms that the risk compounding the projected increase in hearing loss that comes with an ageing population. This is a looming and silent public-health crisis.
She believes that the government should take urgent action to align research-spending with the current and projected size and impact of hearing loss. It should also collaborate across related conditions, such as vision, neurodegenerative diseases and neurological conditions. Furthermore, the government needs, and is obligated, to deliver more accessible and integrated services and develop quality standards that take account of the whole pathway – linking public health, clinical and social needs.

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