English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

TeV-PeV Cosmic-Ray Anisotropy and Local Interstellar Turbulence

MPS-Authors
/persons/resource/persons173127

Giacinti,  Gwenael
Brian Reville, Astrophysical Plasma Theory (APT) - Max Planck Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30680

Kirk,  John G.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

1810.06396.pdf
(Preprint), 4MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Giacinti, G., & Kirk, J. G. (2019). TeV-PeV Cosmic-Ray Anisotropy and Local Interstellar Turbulence. Journal of Physics: Conference Series, 1181: 012035. doi:10.1088/1742-6596/1181/1/012035.


Cite as: https://hdl.handle.net/21.11116/0000-0005-5298-3
Abstract
We calculate the shape of the large-scale anisotropy of TeV-PeV cosmic-rays
(CR) in different models of the interstellar turbulence. In general, the
large-scale CR anisotropy (CRA) is not a dipole, and its shape can be used as a
new probe of the turbulence. The 400 TeV and 2 PeV data sets of IceTop can be
fitted with Goldreich-Sridhar turbulence and a broad resonance function, but
other possibilities are not excluded. We then present our first numerical
calculations of the CRA down to 3 TeV energies in 3D isotropic Kolmogorov
turbulence. At these low energies, the large-scale CRA aligns well with the
direction of local magnetic field lines around the observer. In this type of
turbulence, the CR intensity is flat in a broad region perpendicular to field
lines. Even though the CRA is quite gyrotropic, we show that the local
configuration of the turbulence around the observer does result in the
appearance of weak, "non-gyrotropic" small-scale anisotropies, which contain
information on the local turbulence level.