Now showing items 1-10 of 133
The KASCADE-Grande energy spectrum of cosmic rays and the role of hadronic interaction models
Previous results obtained by KASCADE-Grande using the QGSjetII-02 hadronic interaction model have shown that the energy spectrum of cosmic rays between '10 POT. 16' eV and '10 POT. 18' eV exhibits a significant hardening ...
Measurement of the energy spectrum of cosmic rays above '10 POT.18' eV using the Pierre Auger Observatory
We report a measurement of the flux of cosmic rays with unprecedented precision and statistics using the Pierre Auger Observatory. Based on fluorescence observations in coincidence with at least one surface detector we ...
KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays
(Elsevier BVAmsterdam, 2013-07)
The KASCADE-Grande air shower experiment  consists of, among others, a large scintillator array for measurements of charged particles, Nch, and of an array of shielded scintillation counters used for muon counting, Nµ. ...
Magnetic diffusion effects on the Ultra-High Energy Cosmic Ray spectrum and composition
(Iop Publishing, 2013-09)
We discuss the effects of diffusion of high energy cosmic rays in turbulent extra-galactic magnetic fields. We find an approximate expression for the low energy suppression of the spectrum of the different mass components ...
The cosmic ray spectrum and composition measured by KASCADE-Grande between '10 POT. 16' eV and '10 POT. 18' eV
(Elsevier BVAmsterdam, 2014-11)
The shape and composition of the primary spectrum of cosmic rays are key elements to understand the origin, acceleration and propagation of the Galactic cosmic rays. Besides the well known knee and ankle features, the ...
Detection of a change of slope in the spectrum of heavy mass cosmic rays primaries by the Kascade-Grande experiment
(Ceske Vysoke Uceni TechnickePrague, 2013)
KASCADE-Grande is an extensive air shower experiment devoted to the study of cosmic rays in the '10 POT. 16' ÷ '10 POT. 18' eV energy range. The array comprises various detectors allowing independent measurements of the ...
Manufacturing the Schmidt corrector lens for the Pierre Auger Observatory
(Elsevier Science BvAmsterdamHolanda, 2004)
Active galactic nuclei: sources for ultra high energy cosmic rays
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2009)
Ultra high energy cosmic ray events presently show a spectrum, which we interpret here as galactic cosmic rays due to a starburst, in the radio galaxy Cen A which is pushed up in energy by the shock of a relativistic jet. ...
CENTAURUS A: THE EXTRAGALACTIC SOURCE OF COSMIC RAYS WITH ENERGIES ABOVE THE KNEE
(IOP PUBLISHING LTDBRISTOL, 2012)
The origin of cosmic rays at all energies is still uncertain. In this paper, we present and explore an astrophysical scenario to produce cosmic rays with energy ranging from below 10(15) to 3 x 10(20) eV. We show here that ...