Correlation between terrestrial myriametric and kilometric radio bursts observed with Galileo

P Louarn; A Hilgers; A Roux; C DE VILLEDARY; D. A Gurnett; W. S Kurth

doi:10.1029/94JA00922

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Correlation between terrestrial myriametric and kilometric radio bursts observed with Galileo

Journal article

Peer reviewed

Correlation between terrestrial myriametric and kilometric radio bursts observed with Galileo

P Louarn, A Hilgers, A Roux, C DE VILLEDARY, D. A Gurnett and W. S Kurth

Journal of geophysical research, Vol.99(A12), pp.23541-23546

12/01/1994

DOI: 10.1029/94JA00922

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Abstract

Data from the Galileo plasma wave system recorded during an investigation of the Earth magnetotail on December 8, 1990, are analyzed in both the myriametric and the kilometric wavelength range. In the far tail, between 80 and 30 Earth radii, two components are observed in the myriametric range (frequencies between 6 and about 30 kHz): (1) the “classical” trapped continuum radiation with a smoothly varying intensity in time and (2), superposed on this component, bursts of waves with typical spectral densities of 10−15 V²m−2Hz−1. These bursts of myriametric waves are shown B to correlate with bursts of intense auroral kilometric radiation (AKR) with typical spectral density of 10−12 V²m−2Hz−1. This bursty myriametric radiation is the analog of the low frequency radiation (LFR) reported by Filbert and Kellog (1989). Its close correlation with the kilometric radiation suggests the existence of a direct relationship between these two radiations. A generation mechanism that explains this correlation and the frequency gap between the AKR and the LFR is proposed.

Earth, ocean, space

Electrostatic and electromagnetic waves

Exact sciences and technology

External geophysics

Physics of the magnetosphere

Details

Title: Subtitle: Correlation between terrestrial myriametric and kilometric radio bursts observed with Galileo
Creators: P Louarn - Cent. étude environnements terrestre planétaires, Velizy, France
A Hilgers - Cent. étude environnements terrestre planétaires, Velizy, France
A Roux - Cent. étude environnements terrestre planétaires, Velizy, France
C DE VILLEDARY - Cent. étude environnements terrestre planétaires, Velizy, France
D. A Gurnett - Cent. étude environnements terrestre planétaires, Velizy, France
W. S Kurth - Cent. étude environnements terrestre planétaires, Velizy, France
Resource Type: Journal article
Publication Details: Journal of geophysical research, Vol.99(A12), pp.23541-23546
DOI: 10.1029/94JA00922
ISSN: 0148-0227
eISSN: 2156-2202
Publisher: American Geophysical Union
Language: English
Date published: 12/01/1994
Academic Unit: Physics and Astronomy
Record Identifier: 9984455284902771

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