Studies of clustering in the arrival directions of cosmic rays detected at the Pierre Auger Observatory above 10 EeV

Abstract

If clustering of the arrival directions of ultra high energy cosmic rays is discovered, this would provide important information about their origin, composition, and the galactic and extragalactic magnetic fields. We present here the analysis of the autocorrelation function of the data from the Pierre Auger Observatory as a function of the angular scale and the energy threshold. We compare our results with the signals found by previous experiments.

Contribution to the 30th International Cosmic Ray Conference, Merida, Mexico, July 2007

Cited by in corpus (12)

• Correlation of the highest energy cosmic rays with nearby extragalactic objects
• Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei
• Cosmic Rays from the Knee to the Highest Energies
• Cosmic Ray Astronomy
• UHECR observations and lensing in the magnetic field of the Virgo cluster
• Lecture notes on high energy cosmic rays
• The GZK horizon and constraints on the cosmic ray source spectrum from observations in the GZK regime
• Recent results from the Pierre Auger Observatory
• Search for clustering of ultra high energy cosmic rays from the Pierre Auger Observatory
• Astrophysical interpretation of the medium scale clustering in the ultra-high energy sky
• Astronomy with ultra high-energy particles
• The Pierre Auger Observatory - a new stage in the study of the ultra-high energy cosmic rays