Skip to main content
Log in

On fractional differential models for cosmic ray diffusion

  • Published:
Gravitation and Cosmology Aims and scope Submit manuscript

Abstract

We consider a model of anomalous cosmic ray diffusion with a finite velocity of free particle motion. Inclusion of the finite velocity substantially modifies the anomalous diffusion equation and its solutions. The propagator in the one-dimensional version of the model is presented in an analytic form. The three-dimensional case is considered numerically. The observed differences are discussed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. A. I. Saichev and G. M. Zaslavsky, Fractional Kinetic Equations: Solutions and Applications, Chaos 7(4), 753 (1997).

    MathSciNet  MATH  Google Scholar 

  2. L. I. Dorman, Experimental and Theoretical Foundations of Cosmic Ray Astrophysics (Nauka, Moscow, 1975).

    Google Scholar 

  3. V. V. Lagutin and V. V. Uchaikin, in Proc. 27th Int. Cosmic Ray Conf. (Hamburg, 2001), Vol. 5, p. 1896.

  4. A. A. Lagutin and V. V. Uchaikin, Nucl. Instr. Meth. B 201, 212 (2003).

    Article  ADS  Google Scholar 

  5. A. A. Lagutin and A. G. Tyumentsev, The Spectrum, Mass Composition and Anisotropy of Cosmic Rays in a Fractal Galaxy, Izvestiya Altaiskogo Gosuniversiteta No. 5, 4 (2004).

  6. A. A. Lagutin, Yu. A. Nikulin, and V. V. Uchaikin, A Break In The Cosmic Ray Spectrum as a Consequence of the Fractal Magnetic Field of the Galaxy, Preprint AGU-2000/4, Barnaul, 2000.

  7. V. Yu. Zaburdaev and K.V. Chukbar. Accelerated Superdiffusion and a Finite Velocity of Free Motion, Zh. Eksp. Teor. Fiz. 121(2), 299–307 (2002).

    Google Scholar 

  8. I. M. Sokolov and R. Metzler, Towards Deterministic Equations for Lévy Walks: The Fractional Material Derivative, Phys. Rev. E 67, 010101(R) (2003).

    Article  ADS  Google Scholar 

  9. V. V. Uchaikin and R. T. Sibatov, A One-Dimensional Fractal Walk with a Finite Velocity of Free Motion, Pis’ma v Zh. Tekhn. Fiz. 30(8), 27 (2004).

    Google Scholar 

  10. R. T. Sibatov and V. V. Uchaikin, Statistics of Photon Counts at Scintillating Fluorescence of Quantum Dots, Optika i Spektroskipiya 108(5), 804 (2010).

    Google Scholar 

  11. V.V. Uchaikin and R. T. Sibatov, A StatisticalModel of Scintillating Fluorescence, Zh. Eksp. Teor. Fiz. 136(4 (10)), 627 (2009).

    Google Scholar 

  12. V. V. Uchaikin and R. T. Sibatov, Subrecoil Laser Cooling Dynamics: Fractional Derivative Approach, Statistical Mechanics: Theory and Experiment, P04001, 1 (2009).

  13. V. V. Uchaikin, On the Fractional Derivative Model of the Transport of Cosmic Rays in the Galaxy, JETP Letters 91, 105–109 (2010).

    Article  ADS  Google Scholar 

  14. K. Iosida, Functional Analysis (Mir, Moscow, 1967).

    Google Scholar 

  15. C. Godreche and J. M. Luck, J. Stat. Phys. 104, 489 (2001).

    Article  MathSciNet  MATH  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to V. V. Uchaikin.

Additional information

Talk given at the International Conference RUSGRAV-14, June 27–July 4, 2011, Ulyanovsk, Russia.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Uchaikin, V.V., Sibatov, R.T. On fractional differential models for cosmic ray diffusion. Gravit. Cosmol. 18, 122–126 (2012). https://doi.org/10.1134/S0202289312020132

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0202289312020132

Keywords

Navigation