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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Objective magnetic vortex detection

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Author(s):
Rempel, Erico L. [1, 2] ; Gomes, Tiago F. P. [2] ; Silva, Suzana S. A. [1] ; Chian, Abraham C-L [3, 1, 2]
Total Authors: 4
Affiliation:
[1] WISER, Inst Aeronaut Technol ITA, BR-12228900 Sao Jose Dos Campos, SP - Brazil
[2] Natl Inst Space Res INPE, Box 515, BR-12227010 Sao Jose Dos Campos, SP - Brazil
[3] Univ Adelaide, Sch Math Sci, Adelaide, SA 5005 - Australia
Total Affiliations: 3
Document type: Journal article
Source: Physical Review E; v. 99, n. 4 APR 29 2019.
Web of Science Citations: 1
Abstract

Magnetic coherent vortical structures are ubiquitous in space and astrophysical plasmas and their detection is key to understanding the nature of the intrinsic turbulence in those conducting fluids. A recently developed method to detect magnetic vortices is explored in problems of two- and three-dimensional magnetohydrodynamic simulations. The integrated averaged current deviation, the normed difference of the current density at a point and the mean current density in the domain, integrated along a magnetic field line, is proved to be objective, i.e., invariant under rotations and translations of the observer. The method is shown to detect accurately the boundary of magnetic vortices in two-dimensional simulations, as well as magnetic flux ropes in three dimensions. (AU)

FAPESP's process: 16/24970-7 - The Scintillation Prediction Observation Research Task (SPORT)
Grantee:Mangalathayil Ali Abdu
Support type: Research Projects - Thematic Grants
FAPESP's process: 13/07375-0 - CeMEAI - Center for Mathematical Sciences Applied to Industry
Grantee:José Alberto Cuminato
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 13/26258-4 - Superdense matter in the universe
Grantee:Manuel Máximo Bastos Malheiro de Oliveira
Support type: Research Projects - Thematic Grants