INVESTIGADORES
SCIUTTO Sergio Juan
artículos
Título:
Correlation of the Highest-Energy Cosmic Rays with Nearby Extragalactic objects.
Autor/es:
THE PIERRE AUGER COLLABORATION.; S. J. SCIUTTO
Revista:
SCIENCE
Editorial:
AMER ASSOC ADVANCEMENT SCIENCE
Referencias:
Año: 2007 vol. 318 p. 939 - 943
ISSN:
0036-8075
Resumen:
Using data collected at the Pierre Auger Observatory during the past 3.7 years, we
demonstrated a correlation between the arrival directions of cosmic rays with energy
above 6 × 1019 electron volts and the positions of active galactic nuclei (AGN) lying
within ~75 megaparsecs. We rejected the hypothesis of an isotropic distribution of these
cosmic rays with at least a 99% confidence level from a prescribed a priori test. The
correlation we observed is compatible with the hypothesis that the highest-energy particles
originate from nearby extragalactic sources whose flux has not been substantially reduced
by interaction with the cosmic background radiation. AGN or objects having a similar
spatial distribution are possible sources.
within ~75 megaparsecs. We rejected the hypothesis of an isotropic distribution of these
cosmic rays with at least a 99% confidence level from a prescribed a priori test. The
correlation we observed is compatible with the hypothesis that the highest-energy particles
originate from nearby extragalactic sources whose flux has not been substantially reduced
by interaction with the cosmic background radiation. AGN or objects having a similar
spatial distribution are possible sources.
× 1019 electron volts and the positions of active galactic nuclei (AGN) lying
within ~75 megaparsecs. We rejected the hypothesis of an isotropic distribution of these
cosmic rays with at least a 99% confidence level from a prescribed a priori test. The
correlation we observed is compatible with the hypothesis that the highest-energy particles
originate from nearby extragalactic sources whose flux has not been substantially reduced
by interaction with the cosmic background radiation. AGN or objects having a similar
spatial distribution are possible sources.