THE DIRECT NUMERICAL SIMULATION OF CHARGED PARTICLES’ ACCELERATION IN TURBULENT MAGNETIZED PLASMAS

М. В. Сидоренко, В. В. Марченко

Abstract


Our paper presents the results of the direct numerical simulation of acceleration of charged particles in turbulent magnetized plasmas. We show the resonant nature of particles scattering in the coordinate and momentum spaces on the Alfven wave as one component of a stochastic setof waves with different amplitudes and lengths. Also the modelling the energy spectrum formation of the acceleratedparticles due to their interaction with the full spectrum of MHD waves that satisfy the conditions in the relativistic jetdeceleration regions of FRI-radio galaxies is performed.

Keywords


numerical simulation; acceleration of charged particles; turbulent magnetized plasma.

References


Bergman D., Belz J. Topical Review: Cosmic rays: the Second Knee and beyond // J. of Phys. G: Nucl. and Part.

Phys. — 2007. —34, Is.10. — P.R359–R400.

Fatuzzo M., Melia F. Assessing the Feasibility of Cosmic-Ray Acceleration by Magnetic Turbulence at the Galactic

Center // Ap.J. — 2012. — 750, Is.1. — article id.21.

Fatuzzo M., Melia F., Todd E., Adams F.C. High-energy Cosmic-ray Diffusion in Molecular Clouds: A Numerical

Approach // Ap.J. — 2010. — Vol.725,Is.1. — P. 515–527.

Fraschetti F. On the acceleration of ultra-high-energy cosmic rays // Philosoph. Trans. of the Royal Soc. A: Math.,

Phys. and Engin. Sci. — 2008. — 366, Is.1884. — P. 4417–4428.

Greisen K. End to the Cosmic-Ray Spectrum? // Phys. Rev. Lett. — 1966. — 16, Is.17. — P. 748–750.

Halzen F. The Search for the Sources of the Cosmic Rays One Century after their Discovery // Invited talk at XVI

International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2010), Batavia, Illinois, USA

June 2 July 2010.

H¨orandel J. The origin of galactic cosmic rays // Nucl. Instr. and Meth. in Phys. Res. Sect. A. — 2008. — 588,

Is.1–2. — P. 181–188.

Lyutikov M., Ouyed R. Inductive acceleration of UHECRs in sheared relativistic jets // Astropart. Phys. — 2007. —

, Is.6. — P. 473–489.

Melrose B. Acceleration Mechanisms // Encyclopedia of Complexity and Systems Science. — 2009. — Part 1. —

P. 21–42.

Ostrowski M. Acceleration of ultra-high energy cosmic ray particles in relativistic jets in extragalactic radio sources

// Astronomy and Astrophysics. — 1998. — 335. — P. 134–144.

O’Sullivan S., Reville B., Taylor A.M. Stochastic particle acceleration in the lobes of giant radio galaxies // Mon.

Not. of the Royal Astron. Soc. — 2009. — 400, Is.1. — P. 248–257.

Rieger F., Bosch-Ramon V., Duffy P. Fermi acceleration in astrophysical jets // Ap. and SS. — 2007. — 309, Is.1–4.

— P. 119–125.

Rieger F., Duffy P. Shear Acceleration in Relativistic Astrophysical Jets // ApJ. — 2004. — 617, Is.1. — P. 155–161.

Zatsepin G.T., Kuzmin A. Upper Limit of the Spectrum of Cosmic Rays // JETP. — 1966. — 4. — P. 78.

Сидоренко М., Гнатик Б. Стохастичне прискорення космiчних променiв в областi гальмування релятивiстських

струменiв в блазарах // Вiсник Астрономiчної Школи. — 2011. — 7, №1–2. — С. 108–113.


Full Text: PDF

Refbacks

  • There are currently no refbacks.