English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We study the correlation between compact radio quasars or 3EG gamma-rayblazars and the arrival directions of cosmic rays above 10^19 eV using anupdated list of air shower detections. Our Monte Carlo simulations reveal nosignificant correlations above random and some previous positive results appearto be an effect of the small sample size. Consequently, unless somehow severelydeflected, there is no evidence for ultra-high energy cosmic ray primariesbeing new particles or particles with new interactions beyond the electroweakscale, produced in high-redshift active galactic nuclei.Comment: 5 latex pages, uses revtex, no figures. revised and expanded versio

Testing the correlation of ultrahigh energy cosmic rays with high redshift sources