Energy Spectrum of Cosmic-Ray Electrons at TeV Energies

2008/11/30 by H. E. S. S. Collaboration, A. G. Akhperjanian, : +99 · 1 citation
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #Particle Detector Development and Performance #astro-ph

paper · pdf · doi:10.1103/physrevlett.101.261104

published as Phys.Rev.Lett.101:261104,2008 · 5 pages, 3 figures. PPB-Bets data points included, typo removed

openalex publication_date 2008/12/30 · arxiv created 2009/01/06 · arxiv updated 2012/08/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The very large collection area of ground-based gamma-ray telescopes gives them a substantial advantage over balloon or satellite based instruments in the detection of very-high-energy (>600 GeV) cosmic-ray electrons. Here we present the electron spectrum derived from data taken with the High Energy Stereoscopic System (H.E.S.S.) of imaging atmospheric Cherenkov telescopes. In this measurement, the first of this type, we are able to extend the measurement of the electron spectrum beyond the range accessible to direct measurements. We find evidence for a substantial steepening in the energy spectrum above 600 GeV compared to lower energies.

Citations

• Methods for multidimensional event classification: a case study using images from a Cherenkov gamma-ray telescope
• The Alpha Magnetic Spectrometer (AMS) on the International Space Station: Part I – results from the test flight on the space shuttle

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