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Large-scale cosmic-ray anisotropies above 4 EeV measured by the Pierre Auger observatory

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00499841" target="_blank" >RIV/68378271:_____/18:00499841 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216208:11320/18:10390632 RIV/61989592:15310/18:73590441

  • Result on the web

    <a href="https://doi.org/10.3847/1538-4357/aae689" target="_blank" >https://doi.org/10.3847/1538-4357/aae689</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3847/1538-4357/aae689" target="_blank" >10.3847/1538-4357/aae689</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Large-scale cosmic-ray anisotropies above 4 EeV measured by the Pierre Auger observatory

  • Original language description

    We present a detailed study of the large-scale anisotropies of cosmic rays with energies above 4 EeV measured using the Pierre Auger Observatory. For the energy bins [4, 8] EeV and E >= 8 EeV, the most significant signal is a dipolar modulation in R.A. at energies above 8 EeV, as previously reported. In this paper we further scrutinize the highest-energy bin by splitting it into three energy ranges. We find that the amplitude of the dipole increases with energy above 4 EeV. The growth can be fitted with a power law with index beta = 0.79 +/- 0.19. The directions of the dipoles are consistent with an extragalactic origin of these anisotropies at all the energies considered. Additionally, we have estimated the quadrupolar components of the anisotropy: they are not statistically significant. We discuss the results in the context of the predictions from different models for the distribution of ultrahigh-energy sources and cosmic magnetic fields.n

  • Czech name

  • Czech description

Classification

  • 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

Result continuities

  • 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)

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Astrophysical Journal

  • ISSN

    0004-637X

  • e-ISSN

  • Volume of the periodical

    868

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    12

  • Pages from-to

    1-12

  • UT code for WoS article

    000450221800004

  • EID of the result in the Scopus database

    2-s2.0-85057212039