Particle-in-cell simulations on spontaneous thermal magnetic field fluctuations

Journal Article · Tue Oct 15 00:00:00 EDT 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4825249· OSTI ID:22218476

Pavan, J. ^[1]; Gaelzer, R.; Ziebell, L. F. ^[2]; Yoon, P. H. ^[3]

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1. Instituto de Física e Matemática, UFPel, Pelotas, RS (Brazil)
2. Instituto de Física, UFRGS, Porto Alegre, RS (Brazil)
3. Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742 (United States)

In this paper an electromagnetic particle code is used to investigate the spontaneous thermal emission. Specifically we perform particle-in-cell simulations employing a non-relativistic isotropic Maxwellian particle distribution to show that thermal fluctuations are related to the origin of spontaneous magnetic field fluctuation. These thermal fluctuations can become seed for further amplification mechanisms and thus be considered at the origin of the cosmological magnetic field, at microgauss levels. Our numerical results are in accordance with theoretical results presented in the literature.

• OSTI ID: 22218476
• Journal Information: Physics of Plasmas, Vol. 20, Issue 10; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
AMPLIFICATION
COSMOLOGY
ELECTROMAGNETIC RADIATION
FLUCTUATIONS
INTERSTELLAR MAGNETIC FIELDS
MAGNETIC FIELDS
NUMERICAL ANALYSIS
PARTICLES
PLASMA
PLASMA SIMULATION