The Dipole Anisotropy of Galactic Cosmic Rays
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The Dipole Anisotropy of Galactic Cosmic Rays. / Ahlers, Markus.
In: Journal of Physics, Vol. 1181, No. Conference 1, 012004, 10.03.2019.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The Dipole Anisotropy of Galactic Cosmic Rays
AU - Ahlers, Markus
N1 - 10 pages, 4 figures, Proceedings of the 26th Extended European Cosmic Ray Symposium 2018
PY - 2019/3/10
Y1 - 2019/3/10
N2 - 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.
AB - 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.
KW - astro-ph.HE
U2 - 10.1088/1742-6596/1181/1/012004
DO - 10.1088/1742-6596/1181/1/012004
M3 - Journal article
VL - 1181
JO - Journal of Physics
JF - Journal of Physics
SN - 0976-7673
IS - Conference 1
M1 - 012004
ER -
ID: 227692160