Interpretation of Voyager 1 data on low energy cosmic rays in galactic wind model

24th European Cosmic Ray Symposium

Ptuskin, V.S.^1 ; Seo, E.S.^2 ; Zirakashvili, V.N.^1

IZMIRAN, Troitsk, Moscow

142190, Russia^1

University of Maryland, College Park

MD

20742, United States^2

关键词: Energy spectra;    Galactic cosmic rays;    Galactic disks;    Galactic winds;    Low-energy;    Supernova remnants;    Voyager 1;    Wind velocities;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/632/1/012022/pdf
DOI  :  10.1088/1742-6596/632/1/012022

来源: IOP

【 摘 要 】

The local interstellar energy spectra of galactic cosmic rays down to a few MeV/nucleon were directly measured in the experiment on the board of the Voyager 1 spacecraft. We suggest interpretation of these data based on our models of cosmic ray acceleration in supernova remnants and the diffusion in galactic wind where diffusion coefficient is determined by the cosmic ray streaming instability. The dependence of wind velocity on distance above the Galactic disk is determined.