scholarly journals Cosmic-Ray Diffusion and Galactic Magnetic Field Models

2019 ◽  
Author(s):  
Gwenael Giacinti
Keyword(s):  
Magnetic Field ◽  
Cosmic Ray ◽  
Galactic Magnetic Field ◽  
Ray Diffusion

scholarly journals Reconciling cosmic ray diffusion with Galactic magnetic field models

2018 ◽  
Vol 2018 (07) ◽  
pp. 051-051 ◽  
Author(s):  
G. Giacinti ◽  
M. Kachelrieẞ ◽  
D.V. Semikoz
Keyword(s):  
Magnetic Field ◽  
Cosmic Ray ◽  
Galactic Magnetic Field ◽  
Ray Diffusion

scholarly journals Is there Evidence for Disk-Halo Connections in M31?

1991 ◽  
Vol 144 ◽  
pp. 233-236 ◽  
Author(s):  
Elly M. Berkhuijsen ◽  
Götz Golla ◽  
Rainer Beck
Keyword(s):  
Magnetic Field ◽  
Central Area ◽  
Cosmic Ray ◽  
Thick Disk ◽  
Significant Component ◽  
Southern Half ◽  
Ray Diffusion ◽  
The Magnetic Field ◽  
Uniform Disk

There is some evidence for disk-halo connections in M31, i.e.: (1) The central area seems inclined w.r.t. the main disk. (2) In several regions in the southern half the magnetic field has a significant component perpendicular to the disk. However, (3) any general emission from a thick disk at λ75 cm is ~100x weaker than that from our Galaxy. The uniform disk field seems to inhibit cosmic-ray diffusion perpendicular to the plane, and/or the field at high z is exceptionally weak.

scholarly journals Origins of Extragalactic Cosmic Ray Nuclei by Contracting Alignment Patterns induced in the Galactic Magnetic Field

2019 ◽  
Vol 210 ◽  
pp. 04004
Author(s):  
Martin Erdmann ◽  
Lukas Geiger ◽  
David Schmidt ◽  
Martin Urban ◽  
Marcus Wirtz
Keyword(s):  
Magnetic Field ◽  
Cosmic Rays ◽  
Cosmic Ray ◽  
High Energy ◽  
Ultra High Energy ◽  
Galactic Magnetic Field ◽  
High Energy Cosmic Rays ◽  
Novel Approach ◽  
Astrophysical Scenario ◽  
The Individual

We present a novel approach to search for origins of ultra-high energy cosmic rays. In a simultaneous fit to all observed cosmic rays we use the galactic magnetic field as a mass spectrometer and adapt the nuclear charges such that their extragalactic arrival directions are concentrated in as few directions as possible. During the fit the nuclear charges are constraint by the individual energy and shower depth measurements. We show in a simulated astrophysical scenario that source directions can be reconstructed even within a substantial isotropic background.

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