Imperial College London
Portrait Picture

Professor Jonathan P. Eastwood

Faculty of Natural Sciences, Department of Physics

Professor of Space Physics
 
 
 
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Contact

 

jonathan.eastwood Website

 
 
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Assistant

 

Mr Luke Kratzmann +44 (0)20 7594 7770

 
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Location

 

Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Phan:2016:10.1002/2016GL069212,
author = {Phan, TD and Eastwood, JP and Cassak, PA and Øieroset, M and Gosling, JT and Gershman, DJ and Mozer, FS and Shay, MA and Fujimoto, M and Daughton, W and Drake, JF and Burch, JL and Torbert, RB and Ergun, RE and Chen, LJ and Wang, S and Pollock, C and Dorelli, JC and Lavraud, B and Giles, BL and Moore, TE and Saito, Y and Avanov, LA and Paterson, W and Strangeway, RJ and Russell, CT and Khotyaintsev, Y and Lindqvist, PA and Oka, M and Wilder, FD},
doi = {10.1002/2016GL069212},
journal = {Geophysical Research Letters},
pages = {6060--6069},
title = {MMS observations of electron-scale filamentary currents in the reconnection exhaust and near the X line},
url = {http://dx.doi.org/10.1002/2016GL069212},
volume = {43},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We report Magnetospheric Multiscale observations of macroscopic and electron-scale current layers in asymmetric reconnection. By intercomparing plasma, magnetic, and electric field data at multiple crossings of a reconnecting magnetopause on 22 October 2015, when the average interspacecraft separation was ~10km, we demonstrate that the ion and electron moments are sufficiently accurate to provide reliable current density measurements at 30ms cadence. These measurements, which resolve current layers narrower than the interspacecraft separation, reveal electron-scale filamentary Hall currents and electron vorticity within the reconnection exhaust far downstream of the X line and even in the magnetosheath. Slightly downstream of the X line, intense (up to 3μA/m2) electron currents, a super-Alfvénic outflowing electron jet, and nongyrotropic crescent shape electron distributions were observed deep inside the ion-scale magnetopause current sheet and embedded in the ion diffusion region. These characteristics are similar to those attributed to the electron dissipation/diffusion region around the X line.
AU  - Phan,TD
AU  - Eastwood,JP
AU  - Cassak,PA
AU  - Øieroset,M
AU  - Gosling,JT
AU  - Gershman,DJ
AU  - Mozer,FS
AU  - Shay,MA
AU  - Fujimoto,M
AU  - Daughton,W
AU  - Drake,JF
AU  - Burch,JL
AU  - Torbert,RB
AU  - Ergun,RE
AU  - Chen,LJ
AU  - Wang,S
AU  - Pollock,C
AU  - Dorelli,JC
AU  - Lavraud,B
AU  - Giles,BL
AU  - Moore,TE
AU  - Saito,Y
AU  - Avanov,LA
AU  - Paterson,W
AU  - Strangeway,RJ
AU  - Russell,CT
AU  - Khotyaintsev,Y
AU  - Lindqvist,PA
AU  - Oka,M
AU  - Wilder,FD
DO  - 10.1002/2016GL069212
EP  - 6069
PY  - 2016///
SN  - 0094-8276
SP  - 6060
TI  - MMS observations of electron-scale filamentary currents in the reconnection exhaust and near the X line
T2  - Geophysical Research Letters
UR  - http://dx.doi.org/10.1002/2016GL069212
UR  - http://hdl.handle.net/10044/1/38549
VL  - 43
ER  -
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