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Relationship between solar wind corotating interaction regions and the phasing and intensity of Saturn kilometric radiation bursts

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Relationship between solar wind corotating interaction regions and the phasing and intensity of Saturn kilometric radiation bursts. / Badman, S. V.; Cowley, S. W. H.; Lamy, L. et al.
In: Annales Geophysicae, Vol. 26, No. 12, 19.11.2008, p. 3641-3651.

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Badman SV, Cowley SWH, Lamy L, Cecconi B, Zarka P. Relationship between solar wind corotating interaction regions and the phasing and intensity of Saturn kilometric radiation bursts. Annales Geophysicae. 2008 Nov 19;26(12):3641-3651. doi: 10.5194/angeo-26-3641-2008

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Badman, S. V. ; Cowley, S. W. H. ; Lamy, L. et al. / Relationship between solar wind corotating interaction regions and the phasing and intensity of Saturn kilometric radiation bursts. In: Annales Geophysicae. 2008 ; Vol. 26, No. 12. pp. 3641-3651.

Bibtex

@article{94f3552eb21848edab8cc3ef8fb489d9,
title = "Relationship between solar wind corotating interaction regions and the phasing and intensity of Saturn kilometric radiation bursts",
abstract = "Voyager spacecraft measurements of Saturn kilometric radiation (SKR) identified two features of these radio emissions: that they pulse at a period close to the planetary rotation period, and that the emitted intensity is correlated with the solar wind dynamic pressure (Desch and Kaiser, 1981; Desch, 1982; Desch and Rucker, 1983). In this study the inter-relation between the intensity and the pulsing of the SKR is analysed using Cassini spacecraft measurements of the interplanetary medium and SKR over the interval encompassing Cassini's approach to Saturn, and the first extended orbit. Cassini Plasma Spectrometer ion data were only available for a subset of the dates of interest, so the interplanetary conditions were studied primarily using the near-continuously available magnetic field data, augmented by the ion moment data when available. Intense SKR bursts were identified when solar wind compressions arrived at Saturn. The intensity of subsequent emissions detected by Cassini during the compression intervals was variable, sometimes remaining intense for several planetary rotations, sometimes dimming and rarely disappearing. The timings of the initial intense SKR peaks were sometimes independent of the long-term pulsing behaviour identified in the SKR data. Overall, however, the pulsing of the SKR peaks during the disturbed intervals was not significantly altered relative to that during non-compression intervals.",
keywords = "Magnetospheric physics, Solar physics, astrophysics, astronomy, Radio emissions",
author = "Badman, {S. V.} and Cowley, {S. W. H.} and L. Lamy and B. Cecconi and P. Zarka",
note = "{\textcopyright} European Geosciences Union 2008",
year = "2008",
month = nov,
day = "19",
doi = "10.5194/angeo-26-3641-2008",
language = "English",
volume = "26",
pages = "3641--3651",
journal = "Annales Geophysicae",
issn = "0992-7689",
publisher = "European Geosciences Union",
number = "12",

}

RIS

TY - JOUR

T1 - Relationship between solar wind corotating interaction regions and the phasing and intensity of Saturn kilometric radiation bursts

AU - Badman, S. V.

AU - Cowley, S. W. H.

AU - Lamy, L.

AU - Cecconi, B.

AU - Zarka, P.

N1 - © European Geosciences Union 2008

PY - 2008/11/19

Y1 - 2008/11/19

N2 - Voyager spacecraft measurements of Saturn kilometric radiation (SKR) identified two features of these radio emissions: that they pulse at a period close to the planetary rotation period, and that the emitted intensity is correlated with the solar wind dynamic pressure (Desch and Kaiser, 1981; Desch, 1982; Desch and Rucker, 1983). In this study the inter-relation between the intensity and the pulsing of the SKR is analysed using Cassini spacecraft measurements of the interplanetary medium and SKR over the interval encompassing Cassini's approach to Saturn, and the first extended orbit. Cassini Plasma Spectrometer ion data were only available for a subset of the dates of interest, so the interplanetary conditions were studied primarily using the near-continuously available magnetic field data, augmented by the ion moment data when available. Intense SKR bursts were identified when solar wind compressions arrived at Saturn. The intensity of subsequent emissions detected by Cassini during the compression intervals was variable, sometimes remaining intense for several planetary rotations, sometimes dimming and rarely disappearing. The timings of the initial intense SKR peaks were sometimes independent of the long-term pulsing behaviour identified in the SKR data. Overall, however, the pulsing of the SKR peaks during the disturbed intervals was not significantly altered relative to that during non-compression intervals.

AB - Voyager spacecraft measurements of Saturn kilometric radiation (SKR) identified two features of these radio emissions: that they pulse at a period close to the planetary rotation period, and that the emitted intensity is correlated with the solar wind dynamic pressure (Desch and Kaiser, 1981; Desch, 1982; Desch and Rucker, 1983). In this study the inter-relation between the intensity and the pulsing of the SKR is analysed using Cassini spacecraft measurements of the interplanetary medium and SKR over the interval encompassing Cassini's approach to Saturn, and the first extended orbit. Cassini Plasma Spectrometer ion data were only available for a subset of the dates of interest, so the interplanetary conditions were studied primarily using the near-continuously available magnetic field data, augmented by the ion moment data when available. Intense SKR bursts were identified when solar wind compressions arrived at Saturn. The intensity of subsequent emissions detected by Cassini during the compression intervals was variable, sometimes remaining intense for several planetary rotations, sometimes dimming and rarely disappearing. The timings of the initial intense SKR peaks were sometimes independent of the long-term pulsing behaviour identified in the SKR data. Overall, however, the pulsing of the SKR peaks during the disturbed intervals was not significantly altered relative to that during non-compression intervals.

KW - Magnetospheric physics

KW - Solar physics

KW - astrophysics

KW - astronomy

KW - Radio emissions

U2 - 10.5194/angeo-26-3641-2008

DO - 10.5194/angeo-26-3641-2008

M3 - Journal article

VL - 26

SP - 3641

EP - 3651

JO - Annales Geophysicae

JF - Annales Geophysicae

SN - 0992-7689

IS - 12

ER -