Speakers
Andreas Haungs
(Karlsruhe Institute of Technology)
Donghwa Kang
(Albert-Ludwigs-Universitaet Freiburg)
Zhaoyang Feng
(IHEP)
Description
Diffuse ultra-high energy gamma radiation can arise from a variety of astrophysical sources.
Using the data collected by the KASCADE air shower array, the 90\% C.L.
upper limit to the flux of ultra-high energy gamma-rays in the primary
cosmic-ray flux is determined from 200 TeV up to 20 PeV. The upper limit
on the fraction of gamma-rays to cosmic-rays in energy range 1.5 and 3.7
PeV is the best up to now, which might set some constraints on the model
about the orgin of the IceCube neutrino excess.
| Registration number following "ICRC2015-I/" | 755 |
|---|---|
| Collaboration | KASCADE-Grande |
Primary author
Zhaoyang Feng
(IHEP)
Co-authors
Andreas Haungs
(Karlsruhe Institute of Technology)
Donghwa Kang
(Albert-Ludwigs-Universitaet Freiburg)
