Careful analysis of the H.E.S.S. observations showed that very high-energy gamma-ray emission from galaxies with a highly energetic nucleus is not concentrated in the region close to their central black hole but in fact extends over several thousand light-years along jets of plasma. This discovery shakes up current understanding of the maximum energy attainable by the particle acceleration processes.
The full press release from Max-Planck-Institut für Kernphysik can be viewed here.
The paper is titled “Resolving acceleration to very high energies along the Jet of Centaurus A” and can be accessed here:
DIAS is proud of our history of leading international research in Cosmic Ray and High-Energy Astrophysics, and is a founding member of the H.E.S.S. collaboration.
This is the 6th H.E.S.S. paper published in Nature since 2004. The H.E.S.S. project received the Descartes Prize in 2007, a prize given by the EU to honour scientific teams that have achieved outstanding scientific and technological results in trans-national projects. Prof. Aharonian received the 2010 Rossi Prize of the American Astronomical Society, together with Profs. Werner Hofmann and Heinrich Voelk, for outstanding contributions to imaging very-high-energy gamma rays with H.E.S.S.
DIAS astrophysicists Prof. Aharonian, Dr. Mackey, and Dr. Davit Zargaryan are actively working on analysing and interpreting sources of high-energy gamma rays with their international colleagues in the H.E.S.S. collaboration, as well as looking to the next generation of global observatories commencing operations and in planning stages.