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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

Nobel Prize-winner presents first lecture at Vice-Chancellor’s prestige lecture series
2017-11-17


 Description: Prof Levitt visit Tags: Prof Levitt visit

At the first lecture in the UFS Vice Chancellor’s Prestige Lecture series,
were from the left: Prof Jeanette Conradie, UFS Department of Chemistry;
Prof Michael Levitt, Nobel Prize-winner in Chemistry, biophysicist and
professor in structural biology at Stanford University; Prof Francis Petersen,
UFS Vice-Chancellor and Rector; and Prof Corli Witthuhn,
UFS Vice-Rector: Research. 
Photo: Johan Roux

South African born biophysicist and Nobel Prize-winner in Chemistry, Prof Michael Levitt, paid a visit to the University of the Free Sate (UFS) as part of the Academy of Science of South Africa’s (ASSAf) Distinguished Visiting Scholars’ Programme. 

Early this week the professor in structural biology at Stanford University in the US presented a captivating lecture on the Bloemfontein Campus on his lifetime’s work that earned him the Nobel Prize in 2013. His lecture launched the UFS Vice-Chancellor’s Prestige Lecture series, aimed at knowledge sharing within, and beyond our university boundaries. 

Prof Levitt was one of the first researchers to conduct molecular dynamics simulations of DNA and proteins and developed the first software for this purpose. He received the prize for Chemistry, together with Martin Karplus and Arieh Warshel, “for the development of multiscale models for complex chemical systems”.

Attending the lecture were members of UFS management, academic staff from a range of faculties and other universities as well as young researchers. “Multiscale modelling is very much based on something that makes common sense,” Prof Levitt explained. “And that is to makes things as simple as possible, but not simpler. Everything needs to have the right level of simplicity, that is not too simple, but not too complicated.”  

An incredible mind
Prof Levitt enrolled for applied mathematics at the University of Pretoria at the age of 15. He visited his uncle and aunt in London after his first-year exams, and decided to stay on because they had a television, he claims. A series on molecular biology broadcast on BBC, sparked an interest that would lead Prof Levitt via Israel, and Cambridge, to the Nobel Prize stage – all of which turned out to be vital building blocks for his research career. 

Technology to the rescue
The first small protein model that Prof Levitt built was the size of a room. But that exercise led to the birth of multiscale modelling of macromolecules. For the man on the street, that translates to computerised models used to simulate protein action, and reaction. With some adaptations, the effect of medication can be simulated on human protein in a virtual world. 

“I was lucky to stand on the shoulder of giants,” he says about his accomplishments, and urges the young to be good and kind. “Be passionate about what you do, be persistent, and be original,” he advised.  

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