Heliospheric signatures seen in the sidereal anisotropy of high-energy galactic cosmic ray intensity

2010 ◽  
Author(s):  
M. Amenomori ◽  
X. J. Bi ◽  
D. Chen ◽  
S. W. Cui ◽  
Danzengluobu ◽  
...  
Keyword(s):  
Cosmic Ray ◽  
High Energy ◽  
Cosmic Ray Intensity ◽  
Galactic Cosmic Ray ◽  
Sidereal Anisotropy

scholarly journals Large-Scale Sidereal Anisotropy of Galactic Cosmic-Ray Intensity Observed by the Tibet Air Shower Array

2005 ◽  
Vol 626 (1) ◽  
pp. L29-L32 ◽  
Author(s):  
M. Amenomori ◽  
S. Ayabe ◽  
S. W. Cui ◽  
Danzengluobu ◽  
L. K. Ding ◽  
...  
Keyword(s):  
Large Scale ◽  
Cosmic Ray ◽  
Cosmic Ray Intensity ◽  
Air Shower ◽  
Galactic Cosmic Ray ◽  
Shower Array ◽  
Sidereal Anisotropy ◽  
Air Shower Array

Is the large-scale sidereal anisotropy of the galactic cosmic-ray intensity really instable at TeV energies?

2012 ◽  
Vol 36 (1) ◽  
pp. 237-241 ◽  
Author(s):  
M. Amenomori ◽  
X.J. Bi ◽  
D. Chen ◽  
W.Y. Chen ◽  
S.W. Cui ◽  
...  
Keyword(s):  
Large Scale ◽  
Cosmic Ray ◽  
Cosmic Ray Intensity ◽  
Galactic Cosmic Ray ◽  
Sidereal Anisotropy

scholarly journals The theory of cosmic ray scattering on pre-existing MHD modes meets data

2021 ◽  
Vol 502 (4) ◽  
pp. 5821-5838
Author(s):  
Ottavio Fornieri ◽  
Daniele Gaggero ◽  
Silvio Sergio Cerri ◽  
Pedro De La Torre Luque ◽  
Stefano Gabici
Keyword(s):  
Diffusion Coefficients ◽  
Galactic Halo ◽  
Dominant Role ◽  
Cosmic Ray ◽  
High Energy ◽  
Scattering Rate ◽  
Equilibrium Spectrum ◽  
Galactic Cosmic Ray ◽  
Comprehensive Study ◽  
Ray Scattering

ABSTRACT We present a comprehensive study about the phenomenological implications of the theory describing Galactic cosmic ray scattering on to magnetosonic and Alfvénic fluctuations in the GeV−PeV domain. We compute a set of diffusion coefficients from first principles, for different values of the Alfvénic Mach number and other relevant parameters associated with both the Galactic halo and the extended disc, taking into account the different damping mechanisms of turbulent fluctuations acting in these environments. We confirm that the scattering rate associated with Alfvénic turbulence is highly suppressed if the anisotropy of the cascade is taken into account. On the other hand, we highlight that magnetosonic modes play a dominant role in Galactic confinement of cosmic rays up to PeV energies. We implement the diffusion coefficients in the numerical framework of the dragon code, and simulate the equilibrium spectrum of different primary and secondary cosmic ray species. We show that, for reasonable choices of the parameters under consideration, all primary and secondary fluxes at high energy (above a rigidity of $\simeq 200 \, \mathrm{GV}$) are correctly reproduced within our framework, in both normalization and slope.

A two-way sidereal anisotropy

1968 ◽  
Vol 46 (10) ◽  
pp. S611-S613 ◽  
Author(s):  
K. Nagashima ◽  
H. Ueno ◽  
S. Mori ◽  
S. Sagisaka
Keyword(s):  
Time Variation ◽  
Cosmic Ray ◽  
Sidereal Time ◽  
Cosmic Ray Intensity ◽  
Data Support ◽  
Ion Chambers ◽  
Using Data ◽  
Sidereal Anisotropy

The sidereal time variation is analyzed using data for the ion chambers at Cheltenham and Christchurch for the period 1938–58 and for the meson and neutron components during the IGY. All the results derived from these three kinds of data support the existence of a two-way sidereal anisotropy, suggested by Jacklyn, which has two maxima of the cosmic-ray intensity in the directions of 8 h and 20 h S.T. (sidereal time).

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