Speaker
Dr
Kathrin Egberts
(Max-Planck-Institut fuer Kernphysik, Heidelberg)
Description
The measurement of very-high-energy cosmic-ray electrons is
intrinsically difficult due to their very steep spectrum with low fluxes
and an enormous background of hadronic cosmic rays. The large collection
areas needed for such a measurement can be provided by ground-based
imaging atmospheric Cherenkov telescopes. The High Energy Stereoscopic
System (H.E.S.S.) has performed the first ground-based cosmic-ray electron
measurement and thereby extended the measured range of the spectrum
to several TeV. Here the H.E.S.S. measurement is presented, as well as an
extension of the H.E.S.S. spectrum towards lower energies. At these energies,
H.E.S.S. can probe recent ATIC measurements, which have been interpreted
in terms of dark matter scenarios.
Primary author
Dr
Kathrin Egberts
(Max-Planck-Institut fuer Kernphysik, Heidelberg)
