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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

Kovsie trailblazing track runner sets South African 200 m record
2015-07-16

Photo: IAAF

Wayde van Niekerk became the only South African, and the fourth athlete in the world, to clock sub-20-seconds in a 200 m race on Tuesday 14 July 2015. With this winning time, he became the fourth member of the prestigious quartet, consisting of Michael Johnson, LaShawn Merritt, Isaac Makwala and himself.

The Kovsie gold medallist’s ground-breaking performance saw him beat world-class 200 m specialist and last year's Diamond League race winner, Alonso Edward of Panama.  Van Niekerk crossed the finish line half a metre ahead of Edward, who was followed by Fujmitsu Kenji of Japan in the third place.

Van Niekerk's 19.94-time at the Diamond League meeting in Lucerne (Switzerland) set a national record, and improved on his personal best. In 2010, he claimed the World Junior Championship title in Moncton, Canada, by covering 200 m in 21.02 seconds.

Recently, he made history by defeating the London 2012 Olympic Games champion, Kirani James, of Grenada in the Caribbean.

On 4 July 2015, he surged 0.79 seconds ahead of Kirani in his number five lane, becoming the first African to cover 400m in less than 44 seconds. The Kovsie student won the race at 43.96, occupying 10th place on the International Association of Athletics Federations (IAAF) Diamond League all-time list.

Kovsies were still celebrating the gold medalist’s South African record-setting time of 44.24 on 13 June 2015 when he dominated the Diamond League meeting. At the previous race in New York, Van Niekerk improved on his own national record of 44.38. With an impressive dash to the finish line at that particular event, he surpassed Christopher Brown’s 400 m record.

In addition to the country’s record, Van Niekerk made his name as one of the continent’s record-breakers. On 7 June 2015, he broke the 1986 African 300 m record. Van Niekerk replaced Ivorian Gabriel Tiacoh’s best time of 31.74 with a 31.63 championship win at the Birmingham Diamond League meeting.  Simultaneously, he bettered Morné Nagel’s 2006 South African national record.

Following his outstanding performance, he was positioned in 10th place on the world list in the men’s 300 m.

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