Comparison of multi-point measurements of current sheet structure and analytical modelsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Авторы:
Artemyev A.V.,
Petrukovich A.A.,
Zelenyi L.M.,
Malova H.V.,
Popov V.Y.,
Nakamura R.,
Runov A.,
Apatenkov S.
Аннотация:Current density profiles of 22 thin current sheets,
crossed by four Cluster spacecraft in the magnetotail are
compared with the self-consistent model of anisotropic 1-
D equilibrium, including several species of quasi-adiabatic
(transient) ions and drifting electrons. In order to examine
ion-scale features of the current density profile Cluster data
from the 2001 and 2004 tail seasons were used when the
spacecraft separation was about 2000 and 1000 km, respectively,
while electron-scale features are studied using Cluster
data from the 2003 season , when the spacecraft separation
was about 200 km. The model ion and electron current
density peaks embedded in a background plasma sheet successfully
reproduce observed profiles. Stability criteria of the
model current sheet are also consistent with the experiment.