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Recent progresses i...
Recent progresses in relativistic beam-plasma instability theory
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- Bret, Antoine (author)
- ETSI Ind Univ Castilla-La Mancha
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- Dieckmann, Mark Eric, 1969- (author)
- Linköpings universitet,Medie- och Informationsteknik,Tekniska högskolan
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- Gremillet, Laurent (author)
- CEA, DAM, DIF, 91297 Arpajon, France
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(creator_code:org_t)
- 2010-11-24
- 2010
- English.
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In: Annales Geophysicae. - : Copernicus GmbH. - 0992-7689 .- 1432-0576. ; 28:11, s. 2127-2132
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Abstract
Subject headings
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- Beam-plasma instabilities are a key physical process in many astrophysical phenomena. Within the fireball model of Gamma ray bursts, they first mediate a relativistic collisionless shock before they produce upstream the turbulence needed for the Fermi acceleration process. While non-relativistic systems are usually governed by flow-aligned unstable modes, relativistic ones are likely to be dominated by normally or even obliquely propagating waves. After reviewing the basis of the theory, results related to the relativistic kinetic regime of the poorly-known oblique unstable modes will be presented. Relevant systems besides the well-known electron beam-plasma interaction are presented, and it is shown how the concept of modes hierarchy yields a criterion to assess the proton to electron mass ratio in Particle in cell simulations.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- beam instabilities
- Plasma physics
- Plasmafysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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