Multi-resolution anisotropy studies of ultrahigh-energy cosmic rays detected at the Pierre Auger Observatory

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00479297" target="_blank" >RIV/68378271:_____/17:00479297 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/17:10371285 RIV/61989592:15310/17:73581907
Result on the web
<a href="http://dx.doi.org/10.1088/1475-7516/2017/06/026" target="_blank" >http://dx.doi.org/10.1088/1475-7516/2017/06/026</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1475-7516/2017/06/026" target="_blank" >10.1088/1475-7516/2017/06/026</a>

Result language
angličtina
Original language name
Multi-resolution anisotropy studies of ultrahigh-energy cosmic rays detected at the Pierre Auger Observatory
Original language description
We report a multi-resolution search for anisotropies in the arrival directions of cosmic rays detected at the Pierre Auger Observatory with local zenith angles up to 80 degrees and energies in excess of 4EeV (4 x 10(18) eV). This search is conducted by measuring the angular power spectrum and performing a needlet wavelet analysis in two independent energy ranges. Both analyses are complementary since the angular power spectrum achieves a better performance in identifying large-scale patterns while the needlet wavelet analysis, considering the parameters used in this work, presents a higher efficiency in detecting smaller-scale anisotropies, potentially providing directional information on any observed anisotropies. No deviation from isotropy is observed on any angular scale in the energy range between 4 and 8EeV. Above 8EeV, an indication for a dipole moment is captured, while no other deviation from isotropy is observed for moments beyond the dipole one.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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