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{Yates:2016:10.1002/2016GL071069,
author = {Yates, JN and Southwood, DJ and Dougherty, MK and Sulaiman, AH and Masters, A and Cowley, SWH and Kivelson, MG and Chen, CHK and Provan, G and Mitchell, DG and Hospodarsky, GB and Achilleos, N and Sorba, AM and Coates, AJ},
doi = {10.1002/2016GL071069},
journal = {Geophysical Research Letters},
pages = {102--111},
title = {Saturn's quasiperiodic magnetohydrodynamic waves},
url = {http://dx.doi.org/10.1002/2016GL071069},
volume = {43},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Quasi-periodic ∼1-hour fluctuations have been recently reported by numerous instruments on-board the Cassini spacecraft. The interpretation of the sources of these fluctuations has remained elusive to date. Here we provide an explanation for the origin of these fluctuations using magnetometer observations. We find that magnetic field fluctuations at high northern latitudes are Alfvénic, with small amplitudes (∼0.4 nT), and are concentrated in wave-packets similar to those observed in Kleindienst et al. [2009]. The wave-packets recur periodically at the northern magnetic oscillation period. We use a magnetospheric box model to provide an interpretation of the wave periods. Our model results suggest that the observed magnetic fluctuations are second harmonic Alfvén waves standing between the northern and southern ionospheres in Saturn’s outer magnetosphere
AU  - Yates,JN
AU  - Southwood,DJ
AU  - Dougherty,MK
AU  - Sulaiman,AH
AU  - Masters,A
AU  - Cowley,SWH
AU  - Kivelson,MG
AU  - Chen,CHK
AU  - Provan,G
AU  - Mitchell,DG
AU  - Hospodarsky,GB
AU  - Achilleos,N
AU  - Sorba,AM
AU  - Coates,AJ
DO  - 10.1002/2016GL071069
EP  - 111
PY  - 2016///
SN  - 1944-8007
SP  - 102
TI  - Saturn's quasiperiodic magnetohydrodynamic waves
T2  - Geophysical Research Letters
UR  - http://dx.doi.org/10.1002/2016GL071069
UR  - http://hdl.handle.net/10044/1/41807
VL  - 43
ER  -
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