Imperial College London
Portrait Picture

Professor Jonathan P. Eastwood

Faculty of Natural Sciences, Department of Physics

Professor of Space Physics
 
 
 
//

Contact

 

jonathan.eastwood Website

 
 
//

Assistant

 

Mr Luke Kratzmann +44 (0)20 7594 7770

 
//

Location

 

Huxley BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Ergun:2017:10.1002/2016GL072493,
author = {Ergun, RE and Chen, L-J and Wilder, FD and Ahmadi, N and Eriksson, S and Usanova, ME and Goodrich, KA and Holmes, JC and Sturner, AP and Malaspina, DM and Newman, DL and Torbert, RB and Argall, MR and Lindqvist, P-A and Burch, JL and Webster, JM and Drake, JF and Price, L and Cassak, PA and Swisdak, M and Shay, MA and Graham, DB and Strangeway, RJ and Russell, CT and Giles, BL and Dorelli, JC and Gershman, D and Avanov, L and Hesse, M and Lavraud, B and Le, Contel O and Retino, A and Phan, TD and Goldman, MV and Stawarz, JE and Schwartz, SJ and Eastwood, JP and Hwang, K-J and Nakamura, R and Wang, S},
doi = {10.1002/2016GL072493},
journal = {GEOPHYSICAL RESEARCH LETTERS},
pages = {2978--2986},
title = {Drift waves, intense parallel electric fields, and turbulence associated with asymmetric magnetic reconnection at the magnetopause},
url = {http://dx.doi.org/10.1002/2016GL072493},
volume = {44},
year = {2017}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Observations of magnetic reconnection at Earth's magnetopause often display asymmetric structures that are accompanied by strong magnetic field (B) fluctuations and large-amplitude parallel electric fields (E||). The B turbulence is most intense at frequencies above the ion cyclotron frequency and below the lower hybrid frequency. The B fluctuations are consistent with a thin, oscillating current sheet that is corrugated along the electron flow direction (along the X line), which is a type of electromagnetic drift wave. Near the X line, electron flow is primarily due to a Hall electric field, which diverts ion flow in asymmetric reconnection and accompanies the instability. Importantly, the drift waves appear to drive strong parallel currents which, in turn, generate large-amplitude (~100 mV/m) E|| in the form of nonlinear waves and structures. These observations suggest that turbulence may be common in asymmetric reconnection, penetrate into the electron diffusion region, and possibly influence the magnetic reconnection process.
AU  - Ergun,RE
AU  - Chen,L-J
AU  - Wilder,FD
AU  - Ahmadi,N
AU  - Eriksson,S
AU  - Usanova,ME
AU  - Goodrich,KA
AU  - Holmes,JC
AU  - Sturner,AP
AU  - Malaspina,DM
AU  - Newman,DL
AU  - Torbert,RB
AU  - Argall,MR
AU  - Lindqvist,P-A
AU  - Burch,JL
AU  - Webster,JM
AU  - Drake,JF
AU  - Price,L
AU  - Cassak,PA
AU  - Swisdak,M
AU  - Shay,MA
AU  - Graham,DB
AU  - Strangeway,RJ
AU  - Russell,CT
AU  - Giles,BL
AU  - Dorelli,JC
AU  - Gershman,D
AU  - Avanov,L
AU  - Hesse,M
AU  - Lavraud,B
AU  - Le,Contel O
AU  - Retino,A
AU  - Phan,TD
AU  - Goldman,MV
AU  - Stawarz,JE
AU  - Schwartz,SJ
AU  - Eastwood,JP
AU  - Hwang,K-J
AU  - Nakamura,R
AU  - Wang,S
DO  - 10.1002/2016GL072493
EP  - 2986
PY  - 2017///
SN  - 0094-8276
SP  - 2978
TI  - Drift waves, intense parallel electric fields, and turbulence associated with asymmetric magnetic reconnection at the magnetopause
T2  - GEOPHYSICAL RESEARCH LETTERS
UR  - http://dx.doi.org/10.1002/2016GL072493
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000400186500002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/48361
VL  - 44
ER  -
Download