| Issue |
A&A
Volume 686, June 2024
|
|
|---|---|---|
| Article Number | A165 | |
| Number of page(s) | 7 | |
| Section | Astrophysical processes | |
| DOI | https://doi.org/10.1051/0004-6361/202348766 | |
| Published online | 07 June 2024 | |
Secondary cosmic-ray nuclei in the Galactic halo model with nonlinear Landau damping
1
I. E. Tamm Theoretical Physics Division of P. N. Lebedev Institute of Physics, 119991 Moscow, Russia
e-mail: chernyshov@lpi.ru
2
Max-Planck-Institut für Extraterrestrische Physik, 85748 Garching, Germany
e-mail: ivlev@mpe.mpg.de
Received:
28
November
2023
Accepted:
16
March
2024
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 Alfvénic 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.
Key words: cosmic rays / Galaxy: halo
© The Authors 2024
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Open access funding provided by Max Planck Society.
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