Testing the declination dependency of the spectrum measured by the Pierre Auger Observatory
D. Ravignani*
on behalf of the Pierre Auger Collaboration*: corresponding author
Pre-published on:
March 21, 2025
Published on:
—
Abstract
The distribution of the arrival directions of cosmic rays observed by the Pierre Auger Observatory has a dipolar component that implies a flux dependence on declination. Previously, we showed that the spectrum built from events arriving with a zenith angle less than 60° is qualitatively consistent with the dipole. In this work, we go one step further and show that the Auger spectrum cannot reject the hypothesis of a declination-independent flux. By using events of up 80°, we extend the previous survey from +25° of declination to +45°, thus covering 85% of the sky.
DOI: https://doi.org/10.22323/1.484.0038
How to cite
Metadata are provided both in
article format (very
similar to INSPIRE)
as this helps creating very compact bibliographies which
can be beneficial to authors and readers, and in
proceeding format which
is more detailed and complete.