Cosmic ray models

  title={Cosmic ray models},
  author={M.Kachelriess and D.V.Semikoz},
  journal={Progress in Particle and Nuclear Physics},
We review progress in high-energy cosmic ray physics focusing on recent experimental results and models developed for their interpretation. Emphasis is put on the propagation of charged cosmic rays, covering the whole range from $\sim (20-50)$\,GV, i.e.\ the rigidity when solar modulations can be neglected, up to the highest energies observed. We discuss models aiming to explain the anomalies in Galactic cosmic rays, the knee, and the transition from Galactic to extragalactic cosmic rays. 
Rapporteur Talk: Cosmic Ray Direct
  • P. Mertsch
  • Physics
  • Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)
  • 2021
This is the report on the cosmic ray direct track of the 37th International Cosmic Ray Conference (ICRC 2021), broadly covering the contributions relating to charged cosmic rays (CRs) of GalacticExpand
UHE Cosmic Rays And Agn Jets
Active Galactic Nuclei (AGN) and their relativistic jets are believed to be potential sites of ultra-high-energy (UHE) cosmic ray acceleration. This paper reviews basic observational findings as wellExpand
Scaling violation in interaction of cosmic ray hadrons and the nature of the 3 PeV knee in the spectrum of primary cosmic rays
Energy spectra of the most energetic hadrons in the core region of extensive air showers (EAS) were studied in dependence on the EAS energy E0 in the hybrid experiment HADRON at the Tien ShanExpand
Ultrahigh energy cosmic ray deflection by the intergalactic magnetic field
Andrés Arámburo-Garćıa, ∗ Kyrylo Bondarenko, 3, † Alexey Boyarsky, ‡ Dylan Nelson, § Annalisa Pillepich, ¶ and Anastasia Sokolenko ∗∗ Institute Lorentz, Leiden University, Niels Bohrweg 2, Leiden,Expand
Cosmic ray positrons from compact binary millisecond pulsars
A new population of neutron stars has emerged during the last decade: compact binary millisecond pulsars (CBMSPs). Because these pulsars and their companion stars are in tight orbits with typicalExpand
Neutrinos from the gamma-ray source eHWC J1825-134: Predictions for Km3 detectors
The eHWC J1825-134 source is located in the southern sky and has been recently detected by the HAWC observatory. It presents an hard spectral index and its gamma-ray flux extends up to energies closeExpand
New Physics of Strong Interaction and Dark Universe
The history of dark universe physics can be traced from processes in the very early universe to the modern dominance of dark matter and energy. Here, we review the possible nontrivial role of strongExpand


Progress in high-energy cosmic ray physics
Abstract We review some of the recent progress in our knowledge about high-energy cosmic rays, with an emphasis on the interpretation of the different observational results. We discuss the effectsExpand
Cosmic rays from the knee to the highest energies
Abstract This review summarizes recent developments in the understanding of high-energy cosmic rays. It focuses on galactic and presumably extragalactic particles in the energy range from the kneeExpand
The gamma-ray background: a consequence of metagalactic cosmic ray origin?
An estimate is made of the gamma -ray spectrum resulting from an extragalactic, evolving source model of cosmic ray origin in the absence of intergalactic gas. The experimental situation does not atExpand
Three component model of cosmic ray spectra from 10 GeV to 100 PeV
Aims. A model to describe cosmic ray spectra in the energy region from 10 10 to 10 17 eV is suggested based on the assumption that Galactic cosmic ray flux is a mixture of fluxes accelerated byExpand
Cosmic ray energy spectrum from measurements of air showers
This review focuses on high-energy cosmic rays in the PeV energy range and above. Of particular interest is the knee of the spectrum around 3 PeV and the transition from cosmic rays of GalacticExpand
The intergalactic propagation of ultrahigh energy cosmic ray nuclei
We investigate the propagation of ultra-high energy cosmic ray nuclei (A = 1-56) from cosmologically distant sources through the cosmic radiation backgrounds. Various models for the injectedExpand
Deriving the cosmic ray spectrum from gamma-ray observations
deduce the Galactic CR energy spectrum. We reconsider this problem in view of the improved precision of observational data which in turn require a more precise treatment of photon production inExpand
Gamma-ray sky points to radial gradients in cosmic-ray transport
The standard approach to cosmic-ray (CR) propagation in the Galaxy is based on the assumption that local transport properties can be extrapolated to the whole CR confining volume. Such models tend toExpand
Cosmic-Ray Propagation and Interactions in the Galaxy
We survey the theory and experimental tests for the propagation of cosmic rays in the Galaxy up to energies of 10 15 eV. A guide to the previous reviews and essential literature is given, followed byExpand
Cosmic rays and particle physics
The study of high energy cosmic rays is a diversified field of observational and phenomenological physics addressing questions ranging from shock acceleration of charged particles in variousExpand