Buscar
Mostrando ítems 21-30 de 486
Interpretation of the depths of maximum of extensive air showers measured by the Pierre Auger Observatory
(Institute of Physics - IOPBristol, 2013-02)
To interpret the mean depth of cosmic ray air shower maximum and its dispersion, we parametrize those two observables as functions of the rst two moments of the lnA distribution. We examine the goodness of this simple ...
Manufacturing the Schmidt corrector lens for the Pierre Auger Observatory
(Elsevier Science BvAmsterdamHolanda, 2004)
A search for anisotropy in the arrival directions of ultra high energy cosmic rays recorded at the Pierre Auger Observatory
(Institute of Physics - IOPBristol, 2012-04)
Observations of cosmic ray arrival directions made with the Pierre Auger Obser- vatory have previously provided evidence of anisotropy at the 99% CL using the correlation of ultra high energy cosmic rays (UHECRs) with ...
A search for anisotropy in the arrival directions of ultra high energy cosmic rays recorded at the Pierre Auger Observatory
(2012)
Observations of cosmic ray arrival directions made with the Pierre Auger Observatory have previously provided evidence of anisotropy at the 99% CL using the correlation of ultra high energy cosmic rays (UHECRs) with objects ...
The wavefront of the radio signal emitted by cosmic ray air showers
(Institute of Physics - IOPBristol, 2014-09)
Analyzing measurements of the LOPES antenna array together with corresponding CoREAS simulations for more than 300 measured events with energy above '10 POT. 17' eV and zenith angles smaller than 45◦, we find that the radio ...
Update on the correlation of the highest energy cosmic rays with nearby extragalactic matter
(Elsevier ScienceAmsterdam, 2010-12)
Data collected by the Pierre Auger Observatory through 31 August 2007 showed evidence for anisotropy in the arrival directions of cosmic rays above the Greisen–Zatsepin–Kuz’min energy threshold, 6 × 1019 eV. The anisotropy ...
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 ...
Implications of gamma-ray observations on proton models of ultrahigh energy cosmic rays
(American Physical Society, 2016-09)
The origin of ultrahigh energy cosmic rays (UHECR) is still unknown. However, great progress has been achieved in past years due to the good quality and large statistics in experimental data collected by the current ...
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 ...