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Alfvén waves in the foreshock propagating upstream in the plasma rest frame: statistics from Cluster observations

Narita, Y. and Glassmeier, K.-H. and Schäfer, S. and Motschmann, U. and Fränz, M. and Dandouras, I. and Fornaçon, K.-H. and Georgescu, E. and Korth, A. and Rème, H. and Richter, I. (2004) Alfvén waves in the foreshock propagating upstream in the plasma rest frame: statistics from Cluster observations. Annales Geophysicae, 22 (7), pp. 2315-2323.

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Abstract

We statistically study various properties of low-frequency waves such as frequencies, wave numbers, phase velocities, and polarization in the plasma rest frame in the terrestrial foreshock. Using Cluster observations the wave telescope or k-filtering is applied to investigate wave numbers and rest frame frequencies. We find that most of the foreshock waves propagate upstream along the magnetic field at phase velocity close to the Alfvén velocity. We identify that frequencies are around 0.1x©cp and wave numbers are around 0.1x©cp/VA, where ©cp is the proton cyclotron frequency and VA is the Alfvén velocity. Our results confirm the conclusions drawn from ISEE observations and strongly support the existence of Alfvén waves in the foreshock.

Item URL in elib:https://elib.dlr.de/11040/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=2004,
Title:Alfvén waves in the foreshock propagating upstream in the plasma rest frame: statistics from Cluster observations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Narita, Y.Institut für Geophysik und Meteorologie, TU Braunschweig, GermanyUNSPECIFIED
Glassmeier, K.-H.Max-Planck-Institut für Aeronomie, Katlenburg-Lindau, Germany; Institut für Geophysik und Meteorologie, TU Braunschweig, GermanyUNSPECIFIED
Schäfer, S.Institut für Geophysik und Meteorologie, TU Braunschweig, GermanyUNSPECIFIED
Motschmann, U.UNSPECIFIEDUNSPECIFIED
Fränz, M.Max-Planck-Institut für Aeronomie, Katlenburg-Lindau, GermanyUNSPECIFIED
Dandouras, I.CESR/CNRS, Toulouse, FranceUNSPECIFIED
Fornaçon, K.-H.Institut für Geophysik und Meteorologie, TU Braunschweig, GermanyUNSPECIFIED
Georgescu, E.Max-Planck-Institut für Extraterrestrische Physik, Garching, GermanyUNSPECIFIED
Korth, A.Max-Planck-Institut für Aeronomie, Katlenburg-Lindau, GermanyUNSPECIFIED
Rème, H.CESR/CNRS, Toulouse, FranceUNSPECIFIED
Richter, I.Institut für Geophysik und Meteorologie, TU Braunschweig, GermanyUNSPECIFIED
Date:2004
Journal or Publication Title:Annales Geophysicae
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:22
Page Range:pp. 2315-2323
Status:Published
Keywords:electromagnetics (wave propagation) - interplanetary physics (planetary bow shocks) - space plasma physics (waves and instabilities)
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):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Deposited By: DLR-Beauftragter, elib
Deposited On:08 Dec 2005
Last Modified:14 Jan 2010 16:44

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