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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The Telescope Array Collaboration has observed an excess of events with $E\ge 10^{19.4} ~{\rm eV}$ in the data which is centered at (RA, dec) =($19^\circ$, $35^\circ$). This is near the center of the Perseus-Piscessupercluster (PPSC). The PPSC is about $70 ~{\rm Mpc}$ distant and is theclosest supercluster in the Northern Hemisphere (other than the Virgosupercluster of which we are a part). A Li-Ma oversampling analysis with$20^\circ$-radius circles indicates an excess in the arrival direction ofevents with a local significance of about 4 standard deviations. Theprobability of having such excess close to the PPSC by chance is estimated tobe 3.5 standard deviations. This result indicates that a cosmic ray sourcelikely exists in that supercluster.

Indications of a Cosmic Ray Source in the Perseus-Pisces Supercluster