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Dispersion relation analysis of solar wind turbulence

Narita, Y. and Gary, S. P. and Saito, S. and Glassmeier, Karl-Heinz and Motschmann, Uwe (2011) Dispersion relation analysis of solar wind turbulence. Geophysical Research Letters, 38. American Geophysical Union. DOI: 10.1029/2010GL046588. ISSN 0094-8276.

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Frequency versus wave number diagram of turbulent magnetic fluctuations in the solar wind was determined for the first time in the wide range over three decades using four Cluster spacecraft. Almost all of the identified waves propagate quasi‐perpendicular to the mean magnetic field at various phase speeds, accompanied by a transition from the dominance of outward propagation from the Sun at longer wavelengths into mixture of counter‐propagation at shorter wavelengths. Frequency‐wave number diagram exhibits largely scattered populations with only weak agreement with magnetosonic and whistler waves. Clear identification of a specific normal mode is difficult, suggesting that nonlinear energy cascade is operating even on small‐scale fluctuations.

Document Type:Article
Title:Dispersion relation analysis of solar wind turbulence
AuthorsInstitution or Email of Authors
Narita, Y.Institut für Geophysik und Extraterrestrische Physik, Technische Universität Braunschweig, Braunschweig, Germany
Gary, S. P.Los Alamos National Laboratory, Los Alamos, New Mexico, USA
Saito, S.Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya, Japan
Glassmeier, Karl-HeinzMax-Planck-Institut für Sonnensystemforschung, Katlenburg‐ Lindau, Germany
Motschmann, UweInstitut für Theoretische Physik, Technische Universität Braunschweig, Braunschweig, Germany; uwe.motschmann@dlr.de
Journal or Publication Title:Geophysical Research Letters
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Publisher:American Geophysical Union
Keywords:solar wind
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Planetenforschung (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Laura-Maria Brumm
Deposited On:20 Jun 2011 13:54
Last Modified:26 Mar 2013 13:29

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