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{Davies:2017:10.1002/2017JA024419,
author = {Davies, E and Masters, A and Dougherty, M and Hansen, K and Coates, A and Hunt, G},
doi = {10.1002/2017JA024419},
journal = {Journal of Geophysical Research: Space Physics},
pages = {12328--12337},
title = {Swept Forward Magnetic Field Variability in High-Latitude Regions of Saturn's Magnetosphere},
url = {http://dx.doi.org/10.1002/2017JA024419},
volume = {122},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Swept forward field is the term given to configurations of magnetic field wherein the field lines deviate from the meridional planes of a planet in the direction of its rotation. Evidence is presented for swept-forward field configurations on Cassini orbits around Saturn from the first half of 2008. These orbits were selected on the basis of high inclination, spatial proximity, and temporal proximity, allowing for the observation of swept-forward field and resolution of dynamic effects using data from the Cassini magnetometer. Nine orbits are surveyed; all show evidence of swept-forward field, with typical sweep angle found to be 23°. Evidence is found for transient events that lead to temporary dramatic increases in sweep-forward angle. The Michigan Solar Wind Model is employed to investigate temporal correlation between the arrivals of solar wind shocks at Saturn with these transient events, with two shown to include instances corresponding with solar wind shock arrivals. Measurements of equatorial electron number density from anode 5 of the Cassini Plasma Spectrometer instrument are investigated for evidence of magnetospheric compression, corresponding with predicted shock arrivals. Potential mechanisms for the transfer of momentum from the solar wind to the magnetosphere are discussed.
AU  - Davies,E
AU  - Masters,A
AU  - Dougherty,M
AU  - Hansen,K
AU  - Coates,A
AU  - Hunt,G
DO  - 10.1002/2017JA024419
EP  - 12337
PY  - 2017///
SN  - 2169-9380
SP  - 12328
TI  - Swept Forward Magnetic Field Variability in High-Latitude Regions of Saturn's Magnetosphere
T2  - Journal of Geophysical Research: Space Physics
UR  - http://dx.doi.org/10.1002/2017JA024419
UR  - http://hdl.handle.net/10044/1/55688
VL  - 122
ER  -
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