Secondary cosmic-ray nuclei in the Galactic halo model with nonlinear Landau damping

Abstract

We employed our recent model of the cosmic-ray (CR) halo to compute the Galactic spectra of stable and unstable secondary nuclei. In this model, confinement of the Galactic CRs is entirely determined by the self-generated Alfvenic turbulence whose spectrum is controlled by nonlinear Landau damping. We analyzed the physical parameters affecting propagation characteristics of CRs and estimated the best set of free parameters providing accurate description of available observational data. We also show that agreement with observations at lower energies may be further improved by taking into account the effect of ion-neutral damping that operates near the Galactic disk.

7 pages, 2 figures. Published in A&A. Updated to match the published version

References in corpus (17)

• Cosmic-Ray Proton and Helium Spectra from the First CREAM Flight
• The Vertical Structure of Warm Ionised Gas in the Milky Way
• Measurement of boron and carbon fluxes in cosmic rays with the PAMELA experiment
• Measurement of the cosmic ray helium energy spectrum from 70 GeV to 80 TeV with the DAMPE space mission
• Detection of spectral hardenings in cosmic-ray boron-to-carbon and boron-to-oxygen flux ratios with DAMPE
• Observation of Spectral Structures in the Flux of Cosmic-Ray Protons from 50 GeV to 60 TeV with the Calorimetric Electron Telescope on the International Space Station
• A signature of anisotropic cosmic-ray transport in the gamma-ray sky
• Cosmic-ray database update: ultra-high energy, ultra-heavy, and anti-nuclei cosmic-ray data (CRDB v4.0)
• Direct Measurement of the Cosmic-Ray Helium Spectrum from 40 GeV to 250 TeV with the Calorimetric Electron Telescope on the International Space Station
• Cosmic-ray Boron Flux Measured from 8.4 GeV$/n$ to 3.8 TeV$/n$ with the Calorimetric Electron Telescope on the International Space Station
• The theory of cosmic-ray scattering on pre-existing MHD modes meets data
• The TeV Cosmic Ray Bump: a Message from Epsilon Indi or Epsilon Eridani Star?
• On the origin of observed cosmic ray spectrum below 100 TV
• Cosmic ray streaming in the turbulent interstellar medium
• A cosmic-ray database update: CRDB v4.1
• Formation of the cosmic-ray halo: The role of nonlinear Landau damping
• Formation of the cosmic-ray halo: Galactic spectrum of primary cosmic rays

Cited by in corpus (2)

• On the origin of the spectral features observed in the cosmic ray spectrum
• Very Local Impact on the Spectrum of Cosmic-Ray Nuclei below 100 TeV