ASP Online Seminars: The H.E.S.S. array of telescopes in Namibia—Hunting the most violent phenomena in the Very High Energy Universe
by
Abstract:
The H.E.S.S. array of telescopes, located in Namibia and inaugurated in 2003, explores the upper end of the electromagnetic spectrum, by looking at very high energy gamma-rays coming from the cosmos. When very high energy photons produced in the Universe reach the Earth after a long journey, they interact in the upper atmosphere and generate a shower of very energetic particles. These particles, traveling faster than light in the atmosphere, emit faint and extremely brief flashes of blue light, called "Cherenkov radiation", which is captured by the very fast camera equipping the telescopes.
In the last 15 years, so called "Atmospheric Cherenkov Telescopes" have opened a new astronomical window, and discovered a unexpected rich zoo of both galactic and extra galactic very high energy gamma-ray emitters, belonging to the mysterious classes of pulsar wind nebulae, supernova remnants, active galactic nuclei, γ ray binaries and even more exotic ones.
H.E.S.S. was awarded the Descartes Prize for 2006 and Rossi Prize in 2010 in recognition of its numerous discoveries, and took an important part in the current emergence of multi-messenger, multi-wavelength astronomy that is currently revolutionizing our view on the High Energy Universe.
After a description of the Atmospheric Cherenkov technique and the H.E.S.S. instruments, I will take you on a journey through the Very High Energy Universe, presenting some of the most emblematic H.E.S.S. results and their physical interpretation.
IOC
Mathieu de Nauroi
Al-Maliq Adetunji
Andrew Chen
ANDREW MUHAKEYA
Andrew Zulu
Azwinndini Muronga
Boubakari Maimounatou
Doomnull Unwuchola
ebode onyie fabien
Eli Kasai
FAICAL BARZI
Fati Amadou Oumarou
Francisco Fenias Macucule
Herman White
Jean Baptiste Fankam Fankam
Kayode DADA
Ketevi Adikle Assamagan
Mohamed Zaazoua
Mojisola Usikalu
NIYONSHUTI EMMANUEL
Nukri Komin
Omar Afifeh
SAHEED OYENIRAN
Santhra M L
Soumaya Manai
Toivo Samuel Mabote