Propagation of Ultra High Energy Cosmic Rays from Galactic Sources in a Fractal Interstellar Medium and Origin Studies

Cosmic rays propagation within the Galaxy is simulated considering a fractallike distribution of matter and magnetic fields. In such an anomalous diffusion process, the sources of ultra-high energy particles were considered to be galactic pulsars. The coordinate and birth times of sources were chose...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-12, Vol.936 (1), p.12040
Main Authors: Davoudifar, Pantea, Tabari, Keihanak Rowshan, Doostmohammadi, Saeed
Format: Article
Language:English
Subjects:
Cosmic ray propagation
Cosmic rays
Galaxy distribution
High energy astronomy
Interstellar matter
Physics
Propagation
Pulsars
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Summary:Cosmic rays propagation within the Galaxy is simulated considering a fractallike distribution of matter and magnetic fields. In such an anomalous diffusion process, the sources of ultra-high energy particles were considered to be galactic pulsars. The coordinate and birth times of sources were chosen from SN and pulsar catalogues. From these sources the primary spectrum of cosmic rays (H, He, CNO, Ne-Si, Fe) in energy range EeV and above were reproduced. The resulted spectrum is used to discuss about the change in cosmic ray sources form Galactic to Extragalactic.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/936/1/012040