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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We investigate the possibility that near future observations ofultra-high-energy cosmic rays (UHECRs) can unveil their local sourcedistribution, which reflects the observed local structures if their origins areastrophysical objects. In order to discuss this possibility, we calculate thearrival distribution of UHE protons taking into account their propagationprocess in intergalactic space i.e. energy losses and deflections byextragalactic magnetic field (EGMF). For a realistic simulation, we constructand adopt a model of a structured EGMF and UHECR source distribution, whichreproduce the local structures actually observed around the Milky Way. Thearrival distribution is compared statistically to their source distributionusing correlation coefficient. We specially find that UHECRs above$10^{19.8}$eV are best indicators to decipher their source distribution within100 Mpc, and detection of about 500 events on all the sky allows us to unveilthe local structure of UHE universe for plausible EGMF strength and the sourcenumber density. This number of events can be detected by five years observationby Pierre Auger Observatory.

Towards unravelling the structural distribution of ultra-high-energy cosmic ray sources