Plasma sheet structure in the magnetotail: kinetic simulation and comparison with satellite observations
نویسندگان
چکیده
We use the results of a three-dimensional kinetic simulation of an Harris current sheet to shown and reproduce the ISEE-1/2, Geotail, and Cluster observations of the magnetotail current sheet structure. Current sheet flapping, current density bifurcation, and reconnection are explained as the results of the self-consistent evolution of a Harris current sheet, where lowerhybrid drift, kink, and tearing instabilities are involved. D R A F T February 2, 2008, 3:22am D R A F T RICCI, LAPENTA, AND BRACKBILL: MAGNETOTAIL PLASMA SHEET STRUCTURE X 3
منابع مشابه
Structure of the magnetotail current: Kinetic simulation and comparison with satellite observations
[1] The results of a three-dimensional kinetic simulation of a Harris current sheet are used to show and reproduce the ISEE-1/2, Geotail, and Cluster observations of the magnetotail current sheet structure. Current sheet flapping, current density bifurcation, and reconnection are explained as the results of the evolution of a Harris current sheet, where lower-hybrid drift, kink, and tearing ins...
متن کاملAlfvén Waves and Their Roles in the Dynamics of the Earth’s Magnetotail: A Review
The Earth’s magnetotail is an extremely complex system which—energized by the solar wind—displays many phenomena, and Alfvén waves are essential to its dynamics. While Alfvén waves were first predicted in the early 1940’s and ample observations were later made with rockets and low-altitude satellites, observational evidence of Alfvén waves in different regions of the extended magnetotail has be...
متن کاملCluster observations of electron holes in association with magnetotail reconnection and comparison to simulations
[1] Large-amplitude (up to 50 mV/m) solitary waves, identified as electron holes, have been observed during waveform captures on two of the four Cluster satellites during several plasma sheet encounters that have been identified as the passage of a magnetotail reconnection x line. The electron holes were seen near the outer edge of the plasma sheet, within and on the edge of a density cavity, a...
متن کاملMagnetotail Origins of Auroral Alfvénic Power
The generation of Alfvénic Poynting flux in the central plasma sheet and its polar distribution at low altitude are studied using three dimensional global simulations of the solar wind-magnetosphere-ionosphere interaction. A 24-hour event simulation (4-5 Feb 2004) driven by solar wind and interplanetary magnetic field data reproduces the global morphology of Alfvénic Poynting flux measured by t...
متن کاملCorrelation between ground-based observations of substorm signatures and magnetotail dynamics
We present a substorm event study using the four Cluster spacecraft in combination with ground-based instruments, in order to perform simultaneous observations in the ionosphere and magnetotail. We show good correlation between substorm signatures on the ground and in the magnetotail, even though data from the northern-ground and southern-tail hemispheres are compared. During this event ground-...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003