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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

Expansion to Physics building officially opened on Bloemfontein Campus
2016-05-06

Description: New Physics building  Tags: New Physics building

The newly-opened addition to the Physics Building on the Bloemfontein Campus.
Photo: Charl Devenish

An extension to the Department of Physics at the University of the Free State (UFS) was officially opened on the Bloemfontein Campus on 20 April 2016.

“This started off about five years ago when we were talking about not having enough room for large classes. Prof Matie Hoffman suggested that we build a large lecture room on our parking space,” said Prof Hendrik Swart, Professor in the Department of Physics as he addressed guests at the official opening ceremony.

“A year later, we received a Sarchi Research Chair [South African Research Chairs Initiative] on Advanced and Luminescent Materials. We needed more office and laboratory space. The two ideas were combined and presented to the university’s senior management,” he added.

When the university was founded in 1904, Prof James Lyle was appointed to head up the Physics and Chemistry departments. Five years later, a single room was allocated for the Physics laboratory in the main building upon its completion. In 1947, the old Physics building was designed and constructed. Fast forward 69 years, the department has reached another milestone. Facilities accommodated by the expansion include a new telescope for astrophysics experiments, a basement for storing old equipment, as well as a sliding trap door which allows heavy goods to be elevated into the building from the ground floor. The telescope is one of the many unique features of the building given its capacity to expose graduate students to the basic techniques of radio astronomy, especially in light of the fact that the SKA (Square Kilometre Array) project which is in progress.

“Our department is extremely strong at this stage, and a bright future lies ahead,” said Prof Koos Terblans, the Head of Department. The opening also served to celebrate the 103 publications achieved by the department last year.

Dr Lis Lange, Vice-Rector: Academic is proud of the heights reached by the department to date. “The Department of Physics is undoubtedly one of the jewels in the crown of our university, and we are very proud of its developments. Universities are built on legacies, and they are also about change, which is what this department has been demonstrating.”

The expansions to the building with its top-class facilities, was constructed at a cost of R25 million – an infrastructure grant courtesy of the Department of Higher Education and Training.

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