Correlation of the highest-energy cosmic rays with nearby extragalactic objects
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 × 10 19 electron volts and the positions of active galactic nuclei (AGN) lying within ∼75 megaparsecs. We rejected the hypot...
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2007
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00368075_v318_n5852_p938_Abraham http://hdl.handle.net/20.500.12110/paper_00368075_v318_n5852_p938_Abraham |
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paper:paper_00368075_v318_n5852_p938_Abraham2023-06-08T15:02:05Z Correlation of the highest-energy cosmic rays with nearby extragalactic objects correlation cosmic ray electromagnetic radiation electron hypothesis testing spatial distribution article correlation analysis cosmic radiation energy yield magnetic field priority journal 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 × 10 19 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. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00368075_v318_n5852_p938_Abraham http://hdl.handle.net/20.500.12110/paper_00368075_v318_n5852_p938_Abraham |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
correlation cosmic ray electromagnetic radiation electron hypothesis testing spatial distribution article correlation analysis cosmic radiation energy yield magnetic field priority journal |
| spellingShingle |
correlation cosmic ray electromagnetic radiation electron hypothesis testing spatial distribution article correlation analysis cosmic radiation energy yield magnetic field priority journal Correlation of the highest-energy cosmic rays with nearby extragalactic objects |
| topic_facet |
correlation cosmic ray electromagnetic radiation electron hypothesis testing spatial distribution article correlation analysis cosmic radiation energy yield magnetic field priority journal |
| description |
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 × 10 19 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. |
| title |
Correlation of the highest-energy cosmic rays with nearby extragalactic objects |
| title_short |
Correlation of the highest-energy cosmic rays with nearby extragalactic objects |
| title_full |
Correlation of the highest-energy cosmic rays with nearby extragalactic objects |
| title_fullStr |
Correlation of the highest-energy cosmic rays with nearby extragalactic objects |
| title_full_unstemmed |
Correlation of the highest-energy cosmic rays with nearby extragalactic objects |
| title_sort |
correlation of the highest-energy cosmic rays with nearby extragalactic objects |
| publishDate |
2007 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00368075_v318_n5852_p938_Abraham http://hdl.handle.net/20.500.12110/paper_00368075_v318_n5852_p938_Abraham |
| _version_ |
1768543695200583680 |