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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

Newly operational sequencing unit in genomics at UFS
2016-09-09

Description: Next Generation Sequencing  Tags: Next Generation Sequencing

Dr Martin Nyaga and his research assistant,
Tshidiso Mogotsi in the Next Generation
Sequencing Laboratory.
Photo: Charl Devenish

The Next Generation Sequencing (NGS) unit at the UFS was established as an interdisciplinary facility under the Directorate for Research Development, Faculty of Health Sciences and Faculty of Natural and Agricultural Sciences.

The aim of the NGS facility is to aid internal and external investigators undertaking studies on Deoxyribonucleic acid (DNA) sequencing, assembly and bioinformatics approaches using the more advanced Illumina MiSeq NGS platform.

The NGS unit became operational in 2016 and is managed by Dr Martin Nyaga and administered through the office of the Dean, Faculty of Health Sciences, under the leadership of Prof Gert Van Zyl. Dr Nyaga has vast experience in microbial genomics, having done his PhD in Molecular Virology.

He has worked and collaborated with globally recognised centres of excellence in Prokaryotic and Eukaryotic genomics, namely the J. Craig Venter Institute and the Laboratory of Viral Metagenomics, Rega Institute, among others.

The unit has undertaken several projects and successfully generated data on bacterial, viral and human genomes. Currently, work is ongoing on bacterial and fungal metagenomics studies through 16S rRNA sequencing.

In addition, the unit is also working on plasmid/insert sequencing and whole genome sequencing of animal and human rotaviruses. The unit has capacity to undertake other kinds of panels like the HLA, Pan-cancer and Tumor 15 sequencing, among others.

Several investigators from the UFS including but not limited to Prof Felicity Burt, Prof Wijnand Swart, Dr Frans O’Neil, Dr Trudi O'Neill, Dr Charlotte Boucher, Dr Marieka Gryzenhout and Dr Kamaldeen Baba are actively in collaboration with the NGS unit.

The unit has also invested in other specialised equipment such as the M220 Focused-ultrasonicator (Covaris), 2100 Bioanalyzer system (Agilent) and the real-time PCR cycler, the Rotor-Gene Q (Qiagen), which both the UFS and external investigators can use for their research.

Investigators working on molecular and related studies are encouraged to engage with Dr Nyaga on how they would like to approach their genomics projects at the UFS NGS unit. 

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