English

Highlights from the Pierre Auger Observatory

High Energy Astrophysical Phenomena 2019-08-13 v1

Abstract

This paper summarizes some highlights from the Pierre Auger Observatory that were presented at the ICRC 2011 in Beijing. The cumulative exposure has grown by more than 60% since the previous ICRC to above 21000 km^2 sr yr. Besides giving important updates on the energy spectrum, mass composition, arrival directions, and photon- and neutrino upper limits, we present first measurements of the energy spectrum down to 3 x 10^{17} eV, first distributions of the shower maximum, X_max, together with new surface detector related observables sensitive to X_max, and we present first measurements of the p-air cross section at ~ 10^{18} eV. Serendipity observations such as of atmospheric phenomena showing time evolutions of elves extend the breadth of the astrophysics research program.

Keywords

Cite

@article{arxiv.1207.4823,
  title  = {Highlights from the Pierre Auger Observatory},
  author = {Karl-Heinz Kampert},
  journal= {arXiv preprint arXiv:1207.4823},
  year   = {2019}
}

Comments

Proceedings of Highlight talk presented at ICRC 2011, Beijing. 10 pages, 13 figures

R2 v1 2026-06-21T21:38:47.738Z