Search for first harmonic modulation in the right ascension distribution of cosmic rays detected at the Pierre Auger Observatory
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Search for first harmonic modulation in the right ascension distribution of cosmic rays detected at the Pierre Auger Observatory

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Search for first harmonic modulation in the right ascension distribution of cosmic rays detected at the Pierre Auger Observatory

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The Pierre Auger Collaboration; Pastor Carpi, Sergio
This document is a artículoDate2011

Este documento está disponible también en : http://hdl.handle.net/10550/48003
We present the results of searches for dipolar-type anisotropies in different energy ranges above 2.5×10^17 eV with the surface detector array of the Pierre Auger Observatory, reporting on both the phase and the amplitude measurements of the first harmonic modulation in the right-ascension distribution. Upper limits on the amplitudes are obtained, which provide the most stringent bounds at present, being below 2% at 99% C.L. for EeV energies. We also compare our results to those of previous experiments as well as with some theoretical expectations.

    The Pierre Auger Collaboration Pastor Carpi, Sergio 2011 Search for first harmonic modulation in the right ascension distribution of cosmic rays detected at the Pierre Auger Observatory Astroparticle Physics 34 8 627 639
http://dx.doi.org/10.1016/j.astropartphys.2010.12.007

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