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 = {Stawarz, JE and Eastwood, JP and Varsani, A and Ergun, RE and Shay, MA and Nakamura, R and Phan, TD and Burch, JL and Gershman, DJ and Giles, BL and Goodrich, KA and Khotyaintsev, YV and Lindqvist, P-A and Russell, CT and Strangeway, RJ and Torbert, RB},
doi = {10.1002/2017GL073685},
journal = {Geophysical Research Letters},
pages = {7106--7113},
title = {Magnetospheric Multiscale analysis of intense field-aligned Poynting flux near the Earth's plasma sheet boundary},
url = {},
volume = {44},
year = {2017}

RIS format (EndNote, RefMan)

AB - The Magnetospheric Multiscale mission is employed to examine intense Poynting flux directed along the background magnetic field toward Earth, which reaches amplitudes of nearly 2 mW/m2. The event is located within the plasma sheet but likely near the boundary at a geocentric distance of 9 RE in association with bulk flow signatures. The fluctuations have wavelengths perpendicular to the magnetic field of 124–264 km (compared to an ion gyroradius of 280 km), consistent with highly kinetic Alfvén waves. While the wave vector remains highly perpendicular to the magnetic field, there is substantial variation of the direction in the perpendicular plane. The field-aligned Poynting flux may be associated with kinetic Alfvén waves released along the separatrix by magnetotail reconnection and/or the radiation of waves excited by bursty bulk flow braking and may provide a means through which energy released by magnetic reconnection is transferred to the auroral region.
AU - Stawarz,JE
AU - Eastwood,JP
AU - Varsani,A
AU - Ergun,RE
AU - Shay,MA
AU - Nakamura,R
AU - Phan,TD
AU - Burch,JL
AU - Gershman,DJ
AU - Giles,BL
AU - Goodrich,KA
AU - Khotyaintsev,YV
AU - Lindqvist,P-A
AU - Russell,CT
AU - Strangeway,RJ
AU - Torbert,RB
DO - 10.1002/2017GL073685
EP - 7113
PY - 2017///
SN - 1944-8007
SP - 7106
TI - Magnetospheric Multiscale analysis of intense field-aligned Poynting flux near the Earth's plasma sheet boundary
T2 - Geophysical Research Letters
UR -
UR -
VL - 44
ER -