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Stefan Ohm

Researcher at University of Leicester

Publications -  317
Citations -  15754

Stefan Ohm is an academic researcher from University of Leicester. The author has contributed to research in topics: High Energy Stereoscopic System & Pulsar. The author has an hindex of 59, co-authored 294 publications receiving 14046 citations. Previous affiliations of Stefan Ohm include Max Planck Society & University of Tokyo.

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Journal ArticleDOI

Introducing the CTA concept

B. S. Acharya, +982 more
TL;DR: The Cherenkov Telescope Array (CTA) as discussed by the authors is a very high-energy (VHE) gamma ray observatory with an international collaboration with more than 1000 members from 27 countries in Europe, Asia, Africa and North and South America.
Journal ArticleDOI

Energy Spectrum of Cosmic-Ray Electrons at TeV Energies

Felix Aharonian, +155 more
TL;DR: In this measurement, the first of this type, the High Energy Stereoscopic System is able to extend the measurement of the electron spectrum beyond the range accessible to direct measurements, finding evidence for a substantial steepening in the energy spectrum above 600 GeV compared to lower energies.
Journal ArticleDOI

Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.

Felix Aharonian, +168 more
TL;DR: In this article, the authors present a measurement of the cosmic-ray electron spectrum with H.E.S. starting at 340 GeV and show no indication of a structure in the electron spectrum, but rather a power-law spectrum with spectral index of 3.0 +- 0.1 (stat.) + − 0.3 (syst.) which steepens at about 1 TeV.
Journal ArticleDOI

Acceleration of petaelectronvolt protons in the Galactic Centre

A. Abramowski, +229 more
- 24 Mar 2016 - 
TL;DR: Deep γ-ray observations with arcminute angular resolution of the region surrounding the Galactic Centre are reported, which show the expected tracer of the presence of petaelectronvolt protons within the central 10 parsecs of the Galaxy, and it is proposed that the supermassive black hole Sagittarius A* is linked to this PeVatron.
MonographDOI

Science with the Cherenkov Telescope Array

B. S. Acharya, +580 more
TL;DR: The Cherenkov Telescope Array (CTA) as mentioned in this paper is the major global observatory for very high energy gamma-ray astronomy over the next decade and beyond, covering a huge range in photon energy from 20 GeV to 300 TeV.