Charged Particle Diffusion in Isotropic Random Magnetic Fields

The investigation of the diffusive transport of charged particles in a turbulent magnetic field remains a subject of considerable interest. Research has most frequently concentrated on determining the diffusion coefficient in the presence of a mean magnetic field. Here we consider the diffusion of c...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Subedi, P., Sonsrettee, W., Blasi, P., Ruffolo, D., Matthaeus, W.H., Montgomery, D., Chuychai, P., Dmitruk, P., Wan, M., Parashar, T.N., Chhiber, R.
Formato: JOUR
Materias:
astroparticle physics
cosmic rays
diffusion
magnetic fields
scattering
turbulence
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0004637X_v837_n2_p_Subedi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_0004637X_v837_n2_p_Subedi
record_format dspace
spelling todo:paper_0004637X_v837_n2_p_Subedi2023-10-03T14:02:42Z Charged Particle Diffusion in Isotropic Random Magnetic Fields Subedi, P. Sonsrettee, W. Blasi, P. Ruffolo, D. Matthaeus, W.H. Montgomery, D. Chuychai, P. Dmitruk, P. Wan, M. Parashar, T.N. Chhiber, R. astroparticle physics cosmic rays diffusion magnetic fields scattering turbulence The investigation of the diffusive transport of charged particles in a turbulent magnetic field remains a subject of considerable interest. Research has most frequently concentrated on determining the diffusion coefficient in the presence of a mean magnetic field. Here we consider the diffusion of charged particles in fully three-dimensional isotropic turbulent magnetic fields with no mean field, which may be pertinent to many astrophysical situations. We identify different ranges of particle energy depending upon the ratio of Larmor radius to the characteristic outer length scale of turbulence. Two different theoretical models are proposed to calculate the diffusion coefficient, each applicable to a distinct range of particle energies. The theoretical results are compared to those from computer simulations, showing good agreement. © 2017. The American Astronomical Society. All rights reserved.. Fil:Dmitruk, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0004637X_v837_n2_p_Subedi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic astroparticle physics
cosmic rays
diffusion
magnetic fields
scattering
turbulence
spellingShingle astroparticle physics
cosmic rays
diffusion
magnetic fields
scattering
turbulence
Subedi, P.
Sonsrettee, W.
Blasi, P.
Ruffolo, D.
Matthaeus, W.H.
Montgomery, D.
Chuychai, P.
Dmitruk, P.
Wan, M.
Parashar, T.N.
Chhiber, R.
Charged Particle Diffusion in Isotropic Random Magnetic Fields
topic_facet astroparticle physics
cosmic rays
diffusion
magnetic fields
scattering
turbulence
description The investigation of the diffusive transport of charged particles in a turbulent magnetic field remains a subject of considerable interest. Research has most frequently concentrated on determining the diffusion coefficient in the presence of a mean magnetic field. Here we consider the diffusion of charged particles in fully three-dimensional isotropic turbulent magnetic fields with no mean field, which may be pertinent to many astrophysical situations. We identify different ranges of particle energy depending upon the ratio of Larmor radius to the characteristic outer length scale of turbulence. Two different theoretical models are proposed to calculate the diffusion coefficient, each applicable to a distinct range of particle energies. The theoretical results are compared to those from computer simulations, showing good agreement. © 2017. The American Astronomical Society. All rights reserved..
format JOUR
author Subedi, P.
Sonsrettee, W.
Blasi, P.
Ruffolo, D.
Matthaeus, W.H.
Montgomery, D.
Chuychai, P.
Dmitruk, P.
Wan, M.
Parashar, T.N.
Chhiber, R.
author_facet Subedi, P.
Sonsrettee, W.
Blasi, P.
Ruffolo, D.
Matthaeus, W.H.
Montgomery, D.
Chuychai, P.
Dmitruk, P.
Wan, M.
Parashar, T.N.
Chhiber, R.
author_sort Subedi, P.
title Charged Particle Diffusion in Isotropic Random Magnetic Fields
title_short Charged Particle Diffusion in Isotropic Random Magnetic Fields
title_full Charged Particle Diffusion in Isotropic Random Magnetic Fields
title_fullStr Charged Particle Diffusion in Isotropic Random Magnetic Fields
title_full_unstemmed Charged Particle Diffusion in Isotropic Random Magnetic Fields
title_sort charged particle diffusion in isotropic random magnetic fields
url http://hdl.handle.net/20.500.12110/paper_0004637X_v837_n2_p_Subedi
work_keys_str_mv AT subedip chargedparticlediffusioninisotropicrandommagneticfields
AT sonsretteew chargedparticlediffusioninisotropicrandommagneticfields
AT blasip chargedparticlediffusioninisotropicrandommagneticfields
AT ruffolod chargedparticlediffusioninisotropicrandommagneticfields
AT matthaeuswh chargedparticlediffusioninisotropicrandommagneticfields
AT montgomeryd chargedparticlediffusioninisotropicrandommagneticfields
AT chuychaip chargedparticlediffusioninisotropicrandommagneticfields
AT dmitrukp chargedparticlediffusioninisotropicrandommagneticfields
AT wanm chargedparticlediffusioninisotropicrandommagneticfields
AT parashartn chargedparticlediffusioninisotropicrandommagneticfields
AT chhiberr chargedparticlediffusioninisotropicrandommagneticfields
_version_ 1807315719391543296

Ejemplares similares