2011
DOI: 10.1016/j.icarus.2011.03.017
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Multi-frequency electromagnetic sounding of the Galilean moons

Abstract: Induced magnetic fields provide the unique possibility to sound the con- and conductive oceans produce measurable signal strengths at several frequencies for all satellites. The conductive cores cause signals which will be hardly detectable. Our results show that mutual induction occurs between the core and the ocean. We briefly address this effect and its implications for the analysis of induced field data. We further note that close polar orbits are preferable for future Jupiter system missions to investigat… Show more

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Cited by 55 publications
(113 citation statements)
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“…Additionally, we use the density model by Bagenal & Delamere (2011) with κ = 1 and κ = 2 and display the resultant Poynting fluxes with the thin blue and the thick black line, respectively. The magnetic field model is based on the composite model including Jupiter's internal field and the plasma sheet contributions assembled in Seufert et al (2011). For the interaction strength α we use (17) and (58) with Σ P,c = 200 S in the center of the plasma sheet (Saur et al 1999;Kivelson et al 2004).…”
Section: Poynting Fluxes: Iomentioning
confidence: 99%
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“…Additionally, we use the density model by Bagenal & Delamere (2011) with κ = 1 and κ = 2 and display the resultant Poynting fluxes with the thin blue and the thick black line, respectively. The magnetic field model is based on the composite model including Jupiter's internal field and the plasma sheet contributions assembled in Seufert et al (2011). For the interaction strength α we use (17) and (58) with Σ P,c = 200 S in the center of the plasma sheet (Saur et al 1999;Kivelson et al 2004).…”
Section: Poynting Fluxes: Iomentioning
confidence: 99%
“…We assume an extension of Europa's interaction region of R eff = 1.3 R Europa (Saur et al 1998). The magnetic field is calculated similar to Io with the model by Seufert et al (2011). The dashed curve in Fig.…”
Section: Poynting Fluxes: Iomentioning
confidence: 99%
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“…In consequence, as Io passes through the tilted plasma torus from one edge to the other, it experiences changes in plasma density, magnetic field magnitude, and its orientation. Specifically, local variation of the magnetic field in Io's orbital plane at the synodic period of Jupiter is elliptically polarized with the radial (toward Jupiter) component reaching values ≈±750 nT and the azimuthal component reaching values ≈ ± 400 nT (e.g., Seufert et al, ). The tilt of Jovian dipole field is the main source of periodicity in the magnetic field at the Galilean satellites.…”
Section: Introductionmentioning
confidence: 99%