Test-particle acceleration in a hierarchical three-dimensional turbulence model
- Autores
- Dalena, S.; Rapazzo, A. F.; Dmitruk, Pablo Ariel; Greco, A.; Matthaeus, W. H.
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The acceleration of charged particles is relevant to the solar corona over a broad range of scales and energies. High-energy particles are usually detected in concomitance with large energy release events like solar eruptions and flares. Nevertheless, acceleration can occur at smaller scales, characterized by dynamical activity near current sheets. To gain insight into the complex scenario of coronal charged particle acceleration, we investigate the properties of acceleration with a test-particle approach using three-dimensional magnetohydrodynamic (MHD) models. These are obtained from direct solutions of the reduced MHD equations, well suited for a plasma embedded in a strong axial magnetic field, relevant to the inner heliosphere. A multi-box, multiscale technique is used to solve the equations of motion for protons. This method allows us to resolve an extended range of scales present in the system, namely, from the ion inertial scale of the order of a meter up to macroscopic scales of the order of 10 km (1/100th of the outer scale of the system). This new technique is useful to identify the mechanisms that, acting at different scales, are responsible for acceleration to high energies of a small fraction of the particles in the coronal plasma. We report results that describe acceleration at different stages over a broad range of time, length, and energy scales.
Fil: Dalena, S.. University of Delaware; Estados Unidos. Universita della Calabria; Italia
Fil: Rapazzo, A. F.. University of Delaware; Estados Unidos
Fil: Dmitruk, Pablo Ariel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Greco, A.. Universita della Calabria; Italia
Fil: Matthaeus, W. H.. University of Delaware; Estados Unidos - Materia
-
Turbulence
Test-particles
Magnetohydrodynamics
Numerical simulations - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/17906
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Test-particle acceleration in a hierarchical three-dimensional turbulence modelDalena, S.Rapazzo, A. F.Dmitruk, Pablo ArielGreco, A.Matthaeus, W. H.TurbulenceTest-particlesMagnetohydrodynamicsNumerical simulationshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The acceleration of charged particles is relevant to the solar corona over a broad range of scales and energies. High-energy particles are usually detected in concomitance with large energy release events like solar eruptions and flares. Nevertheless, acceleration can occur at smaller scales, characterized by dynamical activity near current sheets. To gain insight into the complex scenario of coronal charged particle acceleration, we investigate the properties of acceleration with a test-particle approach using three-dimensional magnetohydrodynamic (MHD) models. These are obtained from direct solutions of the reduced MHD equations, well suited for a plasma embedded in a strong axial magnetic field, relevant to the inner heliosphere. A multi-box, multiscale technique is used to solve the equations of motion for protons. This method allows us to resolve an extended range of scales present in the system, namely, from the ion inertial scale of the order of a meter up to macroscopic scales of the order of 10 km (1/100th of the outer scale of the system). This new technique is useful to identify the mechanisms that, acting at different scales, are responsible for acceleration to high energies of a small fraction of the particles in the coronal plasma. We report results that describe acceleration at different stages over a broad range of time, length, and energy scales.Fil: Dalena, S.. University of Delaware; Estados Unidos. Universita della Calabria; ItaliaFil: Rapazzo, A. F.. University of Delaware; Estados UnidosFil: Dmitruk, Pablo Ariel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Greco, A.. Universita della Calabria; ItaliaFil: Matthaeus, W. H.. University of Delaware; Estados UnidosIop Publishing2014-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17906Dalena, S.; Rapazzo, A. F.; Dmitruk, Pablo Ariel; Greco, A.; Matthaeus, W. H.; Test-particle acceleration in a hierarchical three-dimensional turbulence model; Iop Publishing; Astrophysical Journal; 783; 2; 2-2014; 1-11; 1430004-637Xenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/783/2/143info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0004-637X/783/2/143/metainfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1402.3745info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:13:59Zoai:ri.conicet.gov.ar:11336/17906instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:14:00.091CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Test-particle acceleration in a hierarchical three-dimensional turbulence model |
title |
Test-particle acceleration in a hierarchical three-dimensional turbulence model |
spellingShingle |
Test-particle acceleration in a hierarchical three-dimensional turbulence model Dalena, S. Turbulence Test-particles Magnetohydrodynamics Numerical simulations |
title_short |
Test-particle acceleration in a hierarchical three-dimensional turbulence model |
title_full |
Test-particle acceleration in a hierarchical three-dimensional turbulence model |
title_fullStr |
Test-particle acceleration in a hierarchical three-dimensional turbulence model |
title_full_unstemmed |
Test-particle acceleration in a hierarchical three-dimensional turbulence model |
title_sort |
Test-particle acceleration in a hierarchical three-dimensional turbulence model |
dc.creator.none.fl_str_mv |
Dalena, S. Rapazzo, A. F. Dmitruk, Pablo Ariel Greco, A. Matthaeus, W. H. |
author |
Dalena, S. |
author_facet |
Dalena, S. Rapazzo, A. F. Dmitruk, Pablo Ariel Greco, A. Matthaeus, W. H. |
author_role |
author |
author2 |
Rapazzo, A. F. Dmitruk, Pablo Ariel Greco, A. Matthaeus, W. H. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Turbulence Test-particles Magnetohydrodynamics Numerical simulations |
topic |
Turbulence Test-particles Magnetohydrodynamics Numerical simulations |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The acceleration of charged particles is relevant to the solar corona over a broad range of scales and energies. High-energy particles are usually detected in concomitance with large energy release events like solar eruptions and flares. Nevertheless, acceleration can occur at smaller scales, characterized by dynamical activity near current sheets. To gain insight into the complex scenario of coronal charged particle acceleration, we investigate the properties of acceleration with a test-particle approach using three-dimensional magnetohydrodynamic (MHD) models. These are obtained from direct solutions of the reduced MHD equations, well suited for a plasma embedded in a strong axial magnetic field, relevant to the inner heliosphere. A multi-box, multiscale technique is used to solve the equations of motion for protons. This method allows us to resolve an extended range of scales present in the system, namely, from the ion inertial scale of the order of a meter up to macroscopic scales of the order of 10 km (1/100th of the outer scale of the system). This new technique is useful to identify the mechanisms that, acting at different scales, are responsible for acceleration to high energies of a small fraction of the particles in the coronal plasma. We report results that describe acceleration at different stages over a broad range of time, length, and energy scales. Fil: Dalena, S.. University of Delaware; Estados Unidos. Universita della Calabria; Italia Fil: Rapazzo, A. F.. University of Delaware; Estados Unidos Fil: Dmitruk, Pablo Ariel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Greco, A.. Universita della Calabria; Italia Fil: Matthaeus, W. H.. University of Delaware; Estados Unidos |
description |
The acceleration of charged particles is relevant to the solar corona over a broad range of scales and energies. High-energy particles are usually detected in concomitance with large energy release events like solar eruptions and flares. Nevertheless, acceleration can occur at smaller scales, characterized by dynamical activity near current sheets. To gain insight into the complex scenario of coronal charged particle acceleration, we investigate the properties of acceleration with a test-particle approach using three-dimensional magnetohydrodynamic (MHD) models. These are obtained from direct solutions of the reduced MHD equations, well suited for a plasma embedded in a strong axial magnetic field, relevant to the inner heliosphere. A multi-box, multiscale technique is used to solve the equations of motion for protons. This method allows us to resolve an extended range of scales present in the system, namely, from the ion inertial scale of the order of a meter up to macroscopic scales of the order of 10 km (1/100th of the outer scale of the system). This new technique is useful to identify the mechanisms that, acting at different scales, are responsible for acceleration to high energies of a small fraction of the particles in the coronal plasma. We report results that describe acceleration at different stages over a broad range of time, length, and energy scales. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-02 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/17906 Dalena, S.; Rapazzo, A. F.; Dmitruk, Pablo Ariel; Greco, A.; Matthaeus, W. H.; Test-particle acceleration in a hierarchical three-dimensional turbulence model; Iop Publishing; Astrophysical Journal; 783; 2; 2-2014; 1-11; 143 0004-637X |
url |
http://hdl.handle.net/11336/17906 |
identifier_str_mv |
Dalena, S.; Rapazzo, A. F.; Dmitruk, Pablo Ariel; Greco, A.; Matthaeus, W. H.; Test-particle acceleration in a hierarchical three-dimensional turbulence model; Iop Publishing; Astrophysical Journal; 783; 2; 2-2014; 1-11; 143 0004-637X |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/783/2/143 info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0004-637X/783/2/143/meta info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1402.3745 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Iop Publishing |
publisher.none.fl_str_mv |
Iop Publishing |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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