Equatorial electron density measurements in Saturn's inner magnetosphere

A. M. Persoon; D. A. Gurnett; W. S. Kurth; G. B. Hospodarsky; J. B. Groene; P. Canu; M. K. Dougherty

doi:10.1029/2005GL024294

Equatorial electron density measurements in Saturn's inner magnetosphere

A. M. Persoon
, D. A. Gurnett
, W. S. Kurth
, G. B. Hospodarsky
, J. B. Groene
, P. Canu
, M. K. Dougherty

Research output: Contribution to journal › Article › peer-review

Abstract

Upper hybrid resonance emissions detected by the Radio and Plasma Wave Science (RPWS) instrument on the Cassini spacecraft are used to obtain electron densities on five equatorial orbits of Saturn at radial distances ranging from 3 to 9 saturnian radii (Rs). The electron density profiles for these orbits show a highly repeatable radial dependence beyond 5 R_S, decreasing with increasing radial distance approximately as (I/R)^3.63. Inside 5 R_S, the electron density profiles are highly variable. We show that these radial variations are consistent with a centrifugally-driven outward transport of plasma from a source inside 5 R_S.

Original language	English
Article number	L23105
Pages (from-to)	1-4
Number of pages	4
Journal	Geophysical Research Letters
Volume	32
Issue number	23
DOIs	https://doi.org/10.1029/2005GL024294
Publication status	Published - 16 Dec 2005
Externally published	Yes

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title = "Equatorial electron density measurements in Saturn's inner magnetosphere",

abstract = "Upper hybrid resonance emissions detected by the Radio and Plasma Wave Science (RPWS) instrument on the Cassini spacecraft are used to obtain electron densities on five equatorial orbits of Saturn at radial distances ranging from 3 to 9 saturnian radii (Rs). The electron density profiles for these orbits show a highly repeatable radial dependence beyond 5 RS, decreasing with increasing radial distance approximately as (I/R)3.63. Inside 5 RS, the electron density profiles are highly variable. We show that these radial variations are consistent with a centrifugally-driven outward transport of plasma from a source inside 5 RS.",

author = "Persoon, \{A. M.\} and Gurnett, \{D. A.\} and Kurth, \{W. S.\} and Hospodarsky, \{G. B.\} and Groene, \{J. B.\} and P. Canu and Dougherty, \{M. K.\}",

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T1 - Equatorial electron density measurements in Saturn's inner magnetosphere

AU - Persoon, A. M.

AU - Gurnett, D. A.

AU - Kurth, W. S.

AU - Hospodarsky, G. B.

AU - Groene, J. B.

AU - Canu, P.

AU - Dougherty, M. K.

PY - 2005/12/16

Y1 - 2005/12/16

N2 - Upper hybrid resonance emissions detected by the Radio and Plasma Wave Science (RPWS) instrument on the Cassini spacecraft are used to obtain electron densities on five equatorial orbits of Saturn at radial distances ranging from 3 to 9 saturnian radii (Rs). The electron density profiles for these orbits show a highly repeatable radial dependence beyond 5 RS, decreasing with increasing radial distance approximately as (I/R)3.63. Inside 5 RS, the electron density profiles are highly variable. We show that these radial variations are consistent with a centrifugally-driven outward transport of plasma from a source inside 5 RS.

AB - Upper hybrid resonance emissions detected by the Radio and Plasma Wave Science (RPWS) instrument on the Cassini spacecraft are used to obtain electron densities on five equatorial orbits of Saturn at radial distances ranging from 3 to 9 saturnian radii (Rs). The electron density profiles for these orbits show a highly repeatable radial dependence beyond 5 RS, decreasing with increasing radial distance approximately as (I/R)3.63. Inside 5 RS, the electron density profiles are highly variable. We show that these radial variations are consistent with a centrifugally-driven outward transport of plasma from a source inside 5 RS.

U2 - 10.1029/2005GL024294

DO - 10.1029/2005GL024294

M3 - Article

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SP - 1

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JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 23

M1 - L23105

ER -

Equatorial electron density measurements in Saturn's inner magnetosphere

Abstract

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