The Dipole Anisotropy of Galactic Cosmic Rays

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The arrival directions of Galactic cosmic rays exhibit anisotropies up to the level of one per-mille over various angular scales. Recent observations of TeV-PeV cosmic rays show that the dipole anisotropy has a strong energy dependence with a phase-flip around 100 TeV. We argue that this behavior can be well understood by the combination of various effects: the anisotropic diffusion of cosmic rays, the presence of nearby sources, the Compton-Getting effect from our relative motion and the reconstruction bias of ground-based observatories.
OriginalsprogEngelsk
Artikelnummer012004
TidsskriftJournal of Physics
Vol/bind1181
Udgave nummerConference 1
Antal sider11
ISSN0976-7673
DOI
StatusUdgivet - 10 mar. 2019

    Forskningsområder

  • astro-ph.HE

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