Electrons generation spectrum in galactic sources of cosmic rays

Лагутин, А. А.; Волков, Н. В.; Kuzmin, A.; Tyumentsev, A. G.

doi:10.3103/s1062873809050141

Cited by 11 publications

(6 citation statements)

References 8 publications

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“…Generalization of the homogeneous normal diffusion model to the case of inhomogeneous (fractal-like) ISM, has been made for the first time in our papers [12,13]. Later, it was shown [11,[14][15][16] that an anomalous cosmic ray diffusion model allows to describe the main features of nuclei, electron and positron spectra observed in the Solar system. Particularly, in the anomalous diffusion model the key feature of the all particle energy spectrum-the knee at 3 · 10 15 eV-appears naturally without additional assumptions.…”

Section: Parameters Of the Cosmic Ray Anomalous Diffusion Modelmentioning

confidence: 93%

Particle spectra and mass composition in the ultra-high energy region in the framework of the Galactic origin of cosmic rays

et al. 2017

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The possibility for a self-consistent description of all the basic features of the observed cosmic ray spectra and primary composition variations in the energy range of 10 15 ÷ 10 20 eV within the Galactic origin scenario is examined.We assume the existence of Galactic sources that accelerate particles up to ∼ 3 · 10 18 Z eV and take into account a highly inhomogeneous (fractal-like) distribution of matter and magnetic fields in the Galaxy that leads to extremely large free paths of particles ("Lévy flights"), along with an overwhelming contribution to the cosmic ray fluxes observed above ∼ 10 18 eV from particles reaching the Solar System without scattering. Our scenario was refined on the basis of recent experimental results on primary mass composition. Model predictions, which could be verified with the improved high-precision measurements in the nearest future are discussed.

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Section: Parameters Of the Cosmic Ray Anomalous Diffusion Modelmentioning

confidence: 93%

Particle spectra and mass composition in the ultra-high energy region in the framework of the Galactic origin of cosmic rays

et al. 2017

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show abstract

“…Generalization of the homogeneous normal diffusion model to the case of inhomogeneous (fractal-like) ISM, has been made for the first time in our papers [12,13]. Later, it was shown [11,[14][15][16]] that an anomalous cosmic ray diffusion model allows to describe the main features of nuclei, electron and positron spectra observed in the Solar system. Particularly, in the anomalous diffusion model the key feature of the all particle energy spectrum -the knee at 3 • 10 15 eV -appears naturally without additional assumptions.…”

Section: Parameters Of the Cosmic Ray Anomalous Diffusion Modelmentioning

confidence: 93%

Particle spectra and mass composition in the ultra-high energy region in the framework of the Galactic origin of cosmic rays

et al. 2017

View full text Add to dashboard Cite

Abstract. The possibility for a self-consistent description of all the basic features of the observed cosmic ray spectra and primary composition variations in the energy range of 10 15 ÷ 10 20 eV within the Galactic origin scenario is examined.We assume the existence of Galactic sources that accelerate particles up to ∼ 3 · 10 18 Z eV and take into account a highly inhomogeneous (fractal-like) distribution of matter and magnetic fields in the Galaxy that leads to extremely large free paths of particles ("Lévy flights"), along with an overwhelming contribution to the cosmic ray fluxes observed above ∼ 10 18 eV from particles reaching the Solar System without scattering. Our scenario was refined on the basis of recent experimental results on primary mass composition. Model predictions, which could be verified with the improved high-precision measurements in the nearest future are discussed.

show abstract

“…A generalization of the homogeneous normal diffusion model to the case of inhomogeneous (fractal-like) ISM, has been made for the first time in our papers [10,11]. Later, it was shown [12][13][14][15][16][17] that an anomalous cosmic ray diffusion model, developed by the authors, allows to describe the main features of nuclei, electron and positron spectra observed in the Solar system. Particularly, in the anomalous diffusion model the key feature of the all particle energy spectrum -the knee at 3 · 10 15 eVappears naturally without additional assumptions.…”

Section: Retrieval Of the Injection Exponent Using The Anomalous Diffmentioning

confidence: 95%

Average value of the cosmic ray injection exponent at Galactic sources

Лагутин

Волков

2017

EPJ Web Conf.

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The energy spectrum of high energy cosmic rays emitted by sources change during propagation in the Galaxy. Using the spectrum observed at the Earth and two different transport models, based on anomalous and normal diffusion equations, we have retrieved an average value of the cosmic ray injection exponent at Galactic sources taking into account the inhomogeneity of the interstellar medium. We have shown that the average value of the injection index p, obtained in the framework of both transport models, equals to p ∼ (2.8 − 3.0).

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Electrons generation spectrum in galactic sources of cosmic rays

Cited by 11 publications

References 8 publications

Particle spectra and mass composition in the ultra-high energy region in the framework of the Galactic origin of cosmic rays

Particle spectra and mass composition in the ultra-high energy region in the framework of the Galactic origin of cosmic rays

Particle spectra and mass composition in the ultra-high energy region in the framework of the Galactic origin of cosmic rays

Average value of the cosmic ray injection exponent at Galactic sources

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