Cosmic rays in galactic and extragalactic magnetic fields

Abstract

We briefly review sources of cosmic rays, their composition and spectra as well as their propagation in the galactic and extragalactic magnetic fields, both regular and fluctuating. A special attention is paid to the recent results of the X-ray and gamma-ray observations that shed light on the origin of the galactic cosmic rays and the challenging results of Pierre Auger Observatory on the ultra high energy cosmic rays. The perspectives of both high energy astrophysics and cosmic-ray astronomy to identify the sources of ultra high energy cosmic rays, the mechanisms of particle acceleration, to measure the intergalactic radiation fields and to reveal the structure of magnetic fields of very different scales are outlined.

42 pages, Space Science Reviews

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• Observations of extended radio emission in clusters
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Cited by in corpus (28)

• Flavor Ratio of Astrophysical Neutrinos above 35 TeV in IceCube
• Low-frequency Faraday rotation measures towards pulsars using LOFAR: probing the 3-D Galactic halo magnetic field
• Transition from galactic to extragalactic cosmic rays
• Cosmic ray production in supernovae
• HAWC J2227+610 and its association with G106.3+2.7, a new potential Galactic PeVatron
• Cosmic-Ray Diffusion Suppression in Star-forming Regions Inhibits Clump Formation in Gas-rich Galaxies
• Cosmic ray spectrum in the local Galaxy
• Non-linear model of particle acceleration at colliding shock flows
• Acceleration of cosmic rays and gamma-ray emission from supernova remnants in the Galaxy
• Observational signatures of cosmic ray interactions in molecular clouds
• Starburst and post-starburst high-redshift protogalaxies: The feedback impact of high energy cosmic rays
• Interactions between Ultra-High-Energy Particles and Protogalactic Environments
• Revisiting Rotation Measures from the Canadian Galactic Plane Survey: the Magnetic Field in the Disk of the Outer Galaxy
• Polarization studies of Rotating Radio Transients
• Modeling of GeV-TeV gamma-ray emission of Cygnus Cocoon
• UHECR: Signatures and Models
• Hadronic Interactions of Energetic Charged Particles in Protogalactic Outflow Environments and Implications for the Early Evolution of Galaxies
• Anisotropies of Ultra-high Energy Cosmic Rays Dominated by a Single Source in the Presence of Deflections
• Extracting the size of the cosmic electron-positron anomaly
• High-energy cosmic rays from compact galactic star clusters: particle fluxes and anisotropy
• The extragalactic $\gamma$-ray background: imprints from the physical properties and evolution of star-forming galaxy populations
• Revisiting simplified dark matter models in terms of AMS-02 and Fermi-LAT
• Simplified dark matter models in the light of AMS-02 antiproton data
• Simulation study for an in-situ calibration system for the measurement of the snow accumulation and the index-of-refraction profile for radio neutrino detectors
• AMS-02 fits Dark Matter
• Minimal Magnetogenesis: The Role of Inflationary Perturbations and ALPs, and Its Gravitational Wave Signatures
• High Energy Neutrinos and Cosmic Rays
• Using low-frequency pulsar observations to study the 3-D structure of the Galactic magnetic field