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03 March 2021
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Story Giselle Baillie
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Photo Supplied
_web.jpg?sfvrsn=987e6620_1 "NJ van Merwe Read More (1)_web")
Residence members who led the project, included:
Bohlokwa Rantja, the Residence Prime, and Transformation Committee members Nsuku Mutemela, Ofentse Motlakeng, Phindile Tjale, Madinku Mabala, Mmapopi Motshoso, Karabo Shuping, and Tagane Sekete.
The University of the Free State (UFS) Council approved and adopted Lehakwe House as the new name for the
NJ van der Merwe residence on the Bloemfontein Campus. The approval on 26 November 2020 followed a lengthy process of deliberation, consultation, and public engagement that has taken place since November 2019 and is aligned with the UFS Policy on Naming and Renaming. The name-change process was initiated by the Prime and Transformation Committee of the residence, guided by the
Unit for Institutional Change and Social Justice and supported by a multi-stakeholder committee representative of the residence, the Housing and Residence Affairs Office, the Department of Student Affairs, the Student Representative Council, and alumni.
Lehakwe – a precious gem
Following a lengthy evaluation process of the names submitted through a public voting and recommendation platform in July 2020, ‘Lehakwe’ – a Sesotho word referring to a ‘precious gem’ – emerged as the front runner. As many current and past members of the residence attest, this womxn’s residence has come to occupy a significant space within the hearts and minds of UFS students and the UFS community, given that its spirit has always been closely aligned with the constitutional values of dignity, equality, and freedom and with the human values of ubuntu. In this vein, the new name of ‘Lehakwe’ presents a consolidation of constitutional and university values into the day-to-day thinking, learning, living, and legacy spaces of students, as well as everyone who interacts and engages with the UFS.
Two scientists part of team that discovers the source of the highest energy cosmic rays at the centre of the Milky Way
2016-03-22
Artist's impression of the giant molecular clouds surrounding the Galactic Centre, bombarded by very high energy protons accelerated in the vicinity of the central black hole and subsequently shining in gamma rays.
Artist's impression: © Dr Mark A. Garlick/ H.E.S.S. Collaboration Spotlight photo:
Dr Brian van Soelen and Prof Pieter Meintjes of the UFS Department of Physics.
Photo: Charl Devenish
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H.E.S.S. (High Energy Stereoscopic System) scientists publically revealed their latest galactic discovery in the international science journal, Nature, on 16 March 2016. These scientists were able to pinpoint the most powerful source of cosmic radiation – which, up to now, remained a mystery.
Part of this team of scientists are Prof Pieter Meintjes and Dr Brian van Soelen, both in the University of the Free State (UFS) Department of Physics. Dr Van Soelen explains that they have discovered a proton PeVatron – a source that can accelerate protons up to energies of ~1 PeV (10^15 eV) – at the centre of the Milky Way. The supermassive black hole called Sagittarius A has been identified as the most plausible source of this unprecedented acceleration of protons.
The protons are accelerated to Very High Energy (VHE) gamma rays. The energy of these protons are 100 times larger than those achieved by the Large Hadron Collider at CERN (the European Organization for Nuclear Research).
According to Dr Van Soelen, the fact that this research has been published in Nature demonstrates the importance and pioneering nature of the research conducted by H.E.S.S. The H.E.S.S. observatory – operational in Namibia – is a collaboration between 42 scientific institutions in 12 countries.
In 2006, H.E.S.S. was awarded the Descartes Prize of the European Commission – the highest recognition for collaborative research – and in 2010 the prestigious Rossi Prize of the American Astronomical Society. The extent of the observatory’s significance places it among the ranks of the Hubble Space Telescope and the telescopes of the European Southern Observatory in Chile.
“The next generation VHE gamma-ray telescope,” Dr Van Soelen says, “will be the Cherenkov Telescope Array (CTA), which is currently in the design and development stage.” Both Dr Van Soelen and Prof Meintjes are part of this project as well.
H.E.S.S. has issued a complete statement about the paper published in Nature.