Imperial College London
Alternate

ProfessorMicheleDougherty

Faculty of Natural Sciences, Department of Physics

Head of Department of Physics, Professor of Space Physics
 
 
 
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Contact

 

+44 (0)20 7594 7770m.dougherty Website

 
 
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Assistant

 

Ms Lida Mnatsakanian +44 (0)20 7594 7503

 
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Location

 

Blackett 900aBlackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Shebanits:2020:10.1038/s41598-020-64787-7,
author = {Shebanits, O and Hadid, LZ and Cao, H and Morooka, MW and Hunt, G and Dougherty, MK and Wahlund, J-E and Waite, Jr JH and Mueller-Wodarg, I},
doi = {10.1038/s41598-020-64787-7},
journal = {Scientific Reports},
title = {Saturn’s near-equatorial ionospheric conductivities from in situ measurements},
url = {http://dx.doi.org/10.1038/s41598-020-64787-7},
volume = {10},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Cassini’s Grand Finale orbits provided for the first time in-situ measurements of Saturn’s topside ionosphere. We present the Pedersen and Hall conductivities of the top near-equatorial dayside ionosphere, derived from the in-situ measurements by the Cassini Radio and Wave Plasma Science Langmuir Probe, the Ion and Neutral Mass Spectrometer and the fluxgate magnetometer. The Pedersen and Hall conductivities are constrained to at least 10−5–10−4 S/m at (or close to) the ionospheric peak, a factor 10–100 higher than estimated previously. We show that this is due to the presence of dusty plasma in the near-equatorial ionosphere. We also show the conductive ionospheric region to be extensive, with thickness of 300–800 km. Furthermore, our results suggest a temporal variation (decrease) of the plasma densities, mean ion masses and consequently the conductivities from orbit 288 to 292.
AU  - Shebanits,O
AU  - Hadid,LZ
AU  - Cao,H
AU  - Morooka,MW
AU  - Hunt,G
AU  - Dougherty,MK
AU  - Wahlund,J-E
AU  - Waite,Jr JH
AU  - Mueller-Wodarg,I
DO  - 10.1038/s41598-020-64787-7
PY  - 2020///
SN  - 2045-2322
TI  - Saturn’s near-equatorial ionospheric conductivities from in situ measurements
T2  - Scientific Reports
UR  - http://dx.doi.org/10.1038/s41598-020-64787-7
UR  - http://hdl.handle.net/10044/1/79728
VL  - 10
ER  -
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