Search for a Correlation between ANTARES Neutrinos and Pierre Auger Observatory UHECRs Arrival Directions
Abstract
A multimessenger analysis optimized for a correlation of arrival directions of ultra-high energy cosmic rays (UHECRs) and neutrinos is presented and applied to 2190 neutrino candidate events detected in 2007-2008 by the ANTARES telescope and 69 UHECRs observed by the Pierre Auger Observatory between 2004 January 1 and 2009 December 31. No significant correlation is observed. Assuming an equal neutrino flux (E -2 energy spectrum) from all UHECR directions, a 90% CL upper limit on the neutrino flux of 5.0 × 10-8 GeV cm-2 s-1 per source is derived.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- September 2013
- DOI:
- 10.1088/0004-637X/774/1/19
- arXiv:
- arXiv:1202.6661
- Bibcode:
- 2013ApJ...774...19A
- Keywords:
-
- astroparticle physics;
- cosmic rays;
- neutrinos;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- doi:10.1088/0004-637X/774/1/19