papers

Publications (16)

astro-ph.IM2011

The Pierre Auger Observatory V: Enhancements

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +493

Ongoing and planned enhancements of the Pierre Auger Observatory

astro-ph.HE2011

Search for signatures of magnetically-induced alignment in the arrival directions measured by the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +496

We present the results of an analysis of data recorded at the Pierre Auger Observatory in which we search for groups of directionally-aligned events (or `multiplets') which exhibit…

astro-ph.HE2011

Anisotropy and chemical composition of ultra-high energy cosmic rays using arrival directions measured by the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +490

The Pierre Auger Collaboration has reported evidence for anisotropy in the distribution of arrival directions of the cosmic rays with energies eV. Thes…

astro-ph.IM2011

The effect of the geomagnetic field on cosmic ray energy estimates and large scale anisotropy searches on data from the Pierre Auger Observatory

P. Abreu, M. Aglietta, E. J. Ahn +495

We present a comprehensive study of the influence of the geomagnetic field on the energy estimation of extensive air showers with a zenith angle smaller than , detected a…

astro-ph.HE2010

Update on the correlation of the highest energy cosmic rays with nearby extragalactic matter

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +472

Data collected by the Pierre Auger Observatory through 31 August 2007 showed evidence for anisotropy in the arrival directions of cosmic rays above the Greisen-Zatsepin-Kuz'min ene…

astro-ph.HE2011

The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray Showers detected by the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +495

In this paper we introduce the concept of Lateral Trigger Probability (LTP) function, i.e., the probability for an extensive air shower (EAS) to trigger an individual detector of a…