SIMBAD references

2022ApJ...938..106Z - Astrophys. J., 938, 106 (2022/October-3)

Cosmic-Ray Convection-Diffusion Anisotropy.

ZHANG Y., LIU S. and WU D.

Abstract (from CDS):

Under nonuniform convection, the distribution of diffusive particles can exhibit dipole and quadrupole anisotropy induced by the fluid inertial and shear force, respectively. These convection-related anisotropies, unlike the Compton-Getting effect, typically increase with the cosmic-ray (CR) energy, and are thus candidate contributors for the CR anisotropy. In consideration of the inertial effect, CR observational data can be used to set an upper limit on the average acceleration of the local interstellar medium in the equatorial plane to be on the order of 100 μm s–2. Using Oort constants, the quadrupole anisotropy above 200 TeV may be modeled with the shear effect arising from the Galactic differential rotation.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): High energy astrophysics - Particle astrophysics - Cosmic rays - Galactic cosmic rays - Cosmic ray astronomy - Interstellar medium - Interstellar dynamics - Interstellar plasma - Intergalactic gas

Simbad objects: 3

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