Adelaide Research & Scholarship
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https://hdl.handle.net/2440/71070
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| Type: | Journal article |
| Title: | Search for first harmonic modulation in the right ascension distribution of cosmic rays detected at the Pierre Auger Observatory |
| Author: | Barber, K. Bellido Caceres, J. Clay, R. Cooper, M. Dawson, B. Herve, A. Holmes, V. Sorokin, J. Wahrlich, P. Whelan, B. Winnick, M. |
| Citation: | Astroparticle Physics, 2011; 34(8):627-639 |
| Publisher: | Elsevier Science BV |
| Issue Date: | 2011 |
| ISSN: | 0927-6505 1873-2852 |
| Statement of Responsibility: | P. Abreu... K.B. Barber... J.A. Bellido Caceres... R.W. Clay... M.J. Cooper... B.R. Dawson... A.E. Herve... V.C. Holmes... J. Sorokin... P. Wahrlich... B.J. Whelan... M.G. Winnick... et al. |
| Abstract: | We present the results of searches for dipolar-type anisotropies in different energy ranges above 2.5 × 1017 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. © 2011 Published by Elsevier B.V. |
| Rights: | © 2011 Elsevier B.V. All rights reserved. |
| DOI: | 10.1016/j.astropartphys.2010.12.007 |
| Published version: | http://dx.doi.org/10.1016/j.astropartphys.2010.12.007 |
| Appears in Collections: | Aurora harvest 5 Chemistry and Physics publications |
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