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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

‘Celebrating the music of our times’
2013-07-25

 

25 July 2013

The Odeion School of Music’s (OSM) New Music Week, hosted from 17–20 July 2013, offered an experience of profundity.

This was the second week-long festival of its kind to be hosted by the OSM – last year the 90th birthday of the South African composer, Stefans Grové, was celebrated with concerts and a symposium. This year the New Music Week focused on the visit of Ensemble Trans-Z under the artistic leadership of former OSM student, Alfred Vorster, a composer living in Zürich. The Order of the Odeion School of Music was bestowed upon Vorster during the festival. The members of the ensemble are the Belgian pianist Lukas Huisman, Danré Strydom (currently an OSM doctoral student in clarinet, based in Ghent), the Argentinian violinist Juan Braceras and the Swedish cellist Karolina Öhman (both currently living in Basel, Switzerland).

The week included three lectures. Lukas Huisman elucidated his doctoral project, Alfred Vorster offered an analytical perspective on the work of Helmut Lachenmann and Hannes Taljaard (Potchefstroom) delivered a commentary on his own composition practice. In addition to presenting masters’ classes in their individual instruments, Ensemble Trans-Z also hosted two workshops – one for the Mangaung String Project and another for OSM students and staff. These workshops focused on creative improvisation practices within an avant-garde style.

The highlight of the festival was two gala concerts that were held on 19 and 20 July. The first concert was hosted by Ensemble Trans-Z themselves, with a selection of compositions in the avant-garde style. The programme included challenging listening material and was creatively presented with unconventional lighting techniques and visual material.

The concert on 20 July consisted of New Music of a more conventional nature. The Odeion String Quartet offered a varied presentation which consisted of a rich mix of talent. OSM postgraduate students Marianne Cilliers, Karol Legierski and Eljee du Plooy formed part of this spectacular performance. The OSM flute lecturer, Handri Loots and the members of Ensemble Trans-Z supplied additional depth to the concert. The experience was made extra special by the recently-formed New Music Ensemble of the School of Music at the North-West University – led by Augusto Arias. Under conductorship of Jan-Moritz Onken, the OSM Camerata completed this impressive collaboration.

The Camerata’s recital of Hendrik Hofmeyr’s Phantom Waltz, which the composer newly arranged especially for this ensemble, was but one of the artistic highlights of an inspiring presentation.

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