Results 101 to 110 of about 3,083 (223)

Ultra High Energy Cosmic Ray Accelerators

open access: yes, 1999
The surprising lack of a high energy cutoff in the cosmic ray spectrum at the highest energies together with an apparently isotropic distribution of arrival directions have strongly challenged most models proposed for the acceleration of ultra high energy cosmic rays. Young neutron star winds may be able to explain the mystery.
openaire   +2 more sources

Constraining the Cosmic-Ray Energy Based on Observations of Nearby Galaxy Clusters by LHAASO

open access: yesThe Astrophysical Journal Letters
Galaxy clusters act as reservoirs of high-energy cosmic rays (CRs). As CRs propagate through the intracluster medium, they generate diffuse γ -rays detectable by arrays such as LHAASO.
Zhen Cao   +317 more
doaj   +1 more source

Ultra high energy cosmic rays from sequestered X bursts

open access: hybrid, 2006
Peter L. Biermann, Paul H. Frampton
openalex   +1 more source

Exploring the Frontiers of Cosmic-Ray Physics: Perspectives on GRANDProto300 and the GRAND Project

open access: yesThe Astrophysical Journal
The Giant Radio Array for Neutrino Detection (GRAND) is an envisioned large-scale radio array designed to detect ultrahigh-energy cosmic rays (UHECRs, E  > 100 PeV) and neutrinos.
Kewen Zhang, Yi Zhang, Yi-Qing Guo
doaj   +1 more source

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