Imperial College London

Dr Jonathan P. Eastwood

Faculty of Natural SciencesDepartment of Physics

Senior Lecturer



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




6M63Blackett LaboratorySouth Kensington Campus






BibTex format

author = {Eastwood, J and Mistry, R and Phan, TD and Schwartz, SJ and Ergun, RE and Drake, JF and Oieroset, M and Stawarz, JE and Goldman, MV and Haggerty, C and Shay, MA and Burch, JL and Gershman, DJ and Giles, BL and LIndqvist, PA and Torbert, RB and Strangeway, RJ and Russell, CT},
doi = {10.1029/2018GL077670},
journal = {Geophysical Research Letters},
pages = {4569--4577},
title = {Guide field reconnection: exhaust structure and heating},
url = {},
volume = {45},
year = {2018}

RIS format (EndNote, RefMan)

AB - Magnetospheric Multiscale (MMS) observations are used to probe the structure and temperature profile of a guide field reconnection exhaust ~100 ion inertial lengths downstream from the Xline in the Earth's magnetosheath. Asymmetric Hall electric and magnetic field signatures were detected, together with a density cavity confined near one edge of the exhaust and containing electron flow toward the Xline. Electron holes were also detected both on the cavity edge and at the Hall magnetic field reversal. Predominantly parallel ion and electron heating was observed in the main exhaust but within the cavity, electron cooling and enhanced parallel ion heating was found. This is explained in terms of the parallel electric field, which inhibits electron mixing within the cavity on newly reconnected field lines, but accelerates ions. Consequently, guide field reconnection causes inhomogeneous changes in ion and electron temperature across the exhaust.
AU - Eastwood,J
AU - Mistry,R
AU - Phan,TD
AU - Schwartz,SJ
AU - Ergun,RE
AU - Drake,JF
AU - Oieroset,M
AU - Stawarz,JE
AU - Goldman,MV
AU - Haggerty,C
AU - Shay,MA
AU - Burch,JL
AU - Gershman,DJ
AU - Giles,BL
AU - LIndqvist,PA
AU - Torbert,RB
AU - Strangeway,RJ
AU - Russell,CT
DO - 10.1029/2018GL077670
EP - 4577
PY - 2018///
SN - 0094-8276
SP - 4569
TI - Guide field reconnection: exhaust structure and heating
T2 - Geophysical Research Letters
UR -
UR -
VL - 45
ER -