Open AccessEnergetic positron propagation from pulsars: an analytical two-zone diffusion model
Author(s) -
S. M. Osipov,
A. M. Bykov,
A. E. Petrov,
V. I. Romansky
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1697/1/012009
Subject(s) - pulsar , physics , positron , astrophysics , diffusion , cosmic ray , spectral line , computational physics , astronomy , nuclear physics , electron , thermodynamics
We study the cosmic rays (CR) positrons propagation from the near Earth Geminga pulsar wind nebula on the basis of a analytical model of the two-zone spherically symmetric particle diffusion from a central source. We calculate the near Earth spectral distribution of positrons originating from the pulsar. The obtained spectra are compared with the results of another authors considering the problem of the positron excess revealed by PAMELA and AMS-02 experiments.