BibTex format
@article{Stawarz:2020:10.1002/essoar.10503618.1,
author = {Stawarz, JE and Matteini, L and Parashar, TN and Franci, L and Eastwood, JP and Gonzalez, CA and Gingell, I and Burch, JL and Ergun, RE and Ahmadi, N and Giles, BL and Gershman, DJ and Contel, OL and Lindqvist, P-A and Russell, CT and Strangeway, RJ and Torbert, RB},
doi = {10.1002/essoar.10503618.1},
title = {Generalized Ohm’s Law Decomposition of the Electric Field in Magnetosheath Turbulence: Magnetospheric Multiscale Observations},
url = {http://dx.doi.org/10.1002/essoar.10503618.1},
year = {2020}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - <jats:p>Decomposing the electric field (E) into the contributions fromgeneralized Ohm’s law provides key insight into both nonlinear anddissipative dynamics across the full range of scales within a plasma.Using high-resolution, multi-spacecraft measurements of three intervalsin Earth’s magnetosheath from the Magnetospheric Multiscale mission, theinfluence of the magnetohydrodynamic, Hall, electron pressure, andelectron inertia terms from Ohm’s law, as well as the impact of a finiteelectron mass, on the turbulent spectrum are examined observationallyfor the first time. The magnetohydrodynamic, Hall, and electron pressureterms are the dominant contributions to over the accessible lengthscales, which extend to scales smaller than the electron inertial lengthat the greatest extent, with the Hall and electron pressure termsdominating at sub-ion scales. The strength of the non-ideal electronpressure contribution is stronger than expected from linear kineticAlfvén waves and a partial anti-alignment with the Hall electric fieldis present, linked to the relative importance of electron diamagneticcurrents in the turbulence. The relative contribution of linear andnonlinear electric fields scale with the turbulent fluctuationamplitude, with nonlinear contributions playing the dominant role inshaping for the intervals examined in this study. Overall, the sum ofthe Ohm’s law terms and measured agree to within ~20%across the observable scales. These results both confirm generalexpectations about the behavior of in turbulent plasmas and highlightfeatures that should be explored further theoretically.</jats:p>
AU - Stawarz,JE
AU - Matteini,L
AU - Parashar,TN
AU - Franci,L
AU - Eastwood,JP
AU - Gonzalez,CA
AU - Gingell,I
AU - Burch,JL
AU - Ergun,RE
AU - Ahmadi,N
AU - Giles,BL
AU - Gershman,DJ
AU - Contel,OL
AU - Lindqvist,P-A
AU - Russell,CT
AU - Strangeway,RJ
AU - Torbert,RB
DO - 10.1002/essoar.10503618.1
PY - 2020///
TI - Generalized Ohm’s Law Decomposition of the Electric Field in Magnetosheath Turbulence: Magnetospheric Multiscale Observations
UR - http://dx.doi.org/10.1002/essoar.10503618.1
UR - https://doi.org/10.1002/essoar.10503618.1
ER -