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Spectral evolution of two-dimensional kinetic plasma turbulence in the wavenumber-frequency domain

Comisel, H. and Verscharen, D. and Narita, Y. and Motschmann, U. (2013) Spectral evolution of two-dimensional kinetic plasma turbulence in the wavenumber-frequency domain. Physics of Plasmas, 20, 090701. American Institute of Physics (AIP). doi: 10.1063/1.4820936. ISSN 1070-664X.

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Official URL: http://pop.aip.org/resource/1/PHPAEN/v20/i9


We present a method for studying the evolution of plasma turbulence by tracking dispersion relations in the energy spectrum in the wavenumber-frequency domain.We apply hybrid plasma simulations in a simplified two-dimensional geometry to demonstrate our method and its applicability to plasma turbulence in the ion kinetic regime. We identify four dispersion relations: ion-Bernstein waves, oblique whistler waves, oblique Alfven/ion-cyclotron waves, and a zero-frequency mode. The energy partition and frequency broadening are evaluated for these modes. The method allows us to determine the evolution of decaying plasma turbulence in our restricted geometry and shows that it cascades along the dispersion relations during the early phase with an increasing broadening around the dispersion relations.VC 2013 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4820936]

Item URL in elib:https://elib.dlr.de/87206/
Document Type:Article
Title:Spectral evolution of two-dimensional kinetic plasma turbulence in the wavenumber-frequency domain
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Comisel, H.Institut für Theoretische Physik, Technische Universität Braunschweig, Mendelssohnstr. 3, D-38016 Braunschweig, Germany; Institute for Space Sciences, Atomistilor 409, P.O. Box MG-23, Bucharest-Magurele RO-077125, RomaniaUNSPECIFIEDUNSPECIFIED
Verscharen, D.Space Science Center, University of New Hampshire, 8 College Rd., Durham, New Hampshire 03824, USAUNSPECIFIEDUNSPECIFIED
Narita, Y.Space Research Institute, Austrian Academy of Sciences, Schmiedlstr. 6, A-8042 Graz, AustriaUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:Physics of Plasmas
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:090701
Publisher:American Institute of Physics (AIP)
Keywords:spectral evolution
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Exploration of the Solar System
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Deposited By: Brumm, Laura-Maria
Deposited On:07 Jan 2014 13:05
Last Modified:18 Dec 2019 04:19

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