Imperial College London

Dr Jonathan P. Eastwood

Faculty of Natural SciencesDepartment of Physics

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 8101jonathan.eastwood Website

 
 
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Location

 

6M63Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Stawarz:2018:10.1029/2018GL079095,
author = {Stawarz, JE and Eastwood, JP and Genestreti, KJ and Nakamura, R and Ergun, RE and Burgess, D and Burch, JL and Fuselier, SA and Gershamn, DJ and Giles, BL and Le, Contel O and Lindqvist, P-A and Russell, CT and Torbert, RB},
doi = {10.1029/2018GL079095},
journal = {Geophysical Research Letters},
pages = {8783--8792},
title = {Intense electric fields and electronscale substructure within magnetotail flux ropes as revealed by the Magnetospheric Multiscale mission},
url = {http://dx.doi.org/10.1029/2018GL079095},
volume = {45},
year = {2018}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Three flux ropes associated with nearEarth magnetotail reconnection are analyzed using Magnetospheric Multiscale observations. The flux ropes are Earthward propagating with sizes from ∼3 to 11 ion inertial lengths. Significantly different axial orientations are observed, suggesting spatiotemporal variability in the reconnection and/or flux rope dynamics. An electronscale vortex, associated with one of the most intense electric fields (E) in the event, is observed within one of the flux ropes. This E is predominantly perpendicular to the magnetic field (B); the electron vortex is frozenin with E × B drifting electrons carrying perpendicular current and causing a smallscale magnetic enhancement. The vortex is ∼16 electron gyroradii in size perpendicular to B and potentially elongated parallel to B. The need to decouple the frozenin vortical motion from the surrounding plasma implies a parallel E at the structure's ends. The formation of frozenin electron vortices within reconnectiongenerated flux ropes may have implications for particle acceleration.
AU - Stawarz,JE
AU - Eastwood,JP
AU - Genestreti,KJ
AU - Nakamura,R
AU - Ergun,RE
AU - Burgess,D
AU - Burch,JL
AU - Fuselier,SA
AU - Gershamn,DJ
AU - Giles,BL
AU - Le,Contel O
AU - Lindqvist,P-A
AU - Russell,CT
AU - Torbert,RB
DO - 10.1029/2018GL079095
EP - 8792
PY - 2018///
SN - 0094-8276
SP - 8783
TI - Intense electric fields and electronscale substructure within magnetotail flux ropes as revealed by the Magnetospheric Multiscale mission
T2 - Geophysical Research Letters
UR - http://dx.doi.org/10.1029/2018GL079095
UR - http://hdl.handle.net/10044/1/63549
VL - 45
ER -