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in creator/contributor: "Lui, A.T.Y."  
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Kinetic Ballooning Instability for Substorm Onset and Current Disruption Observed by AMPTE/CCE

Description: A new scenario of AMPTE/CCE observation of substorm onset and current disruption and the corresponding physical processes is presented. Toward the end of late growth phase plasma beta increases to greater than or equal to 50 and a low-frequency instability with a wave period of 50-75 seconds is excited and grows exponentially to a large amplitude at the onset of current disruption. At the current disruption onset, higher-frequency instabilities are excited so that the plasma and electromagnetic… more
Date: May 1, 1998
Creator: Cheng, C. Z. & Lui, A. T. Y.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ballooning-mirror instability and internally driven Pc 4--5 wave events

Description: A kinetic-MHD field-aligned eigenmode stability analysis of low frequency ballooning-mirror instabilities has been performed for anisotropic pressure plasma sin the magnetosphere. The ballooning mode is mainly a transverse wave driven unstable by pressure gradient in the bad curvature region. The mirror mode with a dominant compressional magnetic field perturbation is excited when the product of plasma beta and pressure anisotropy (P{sub {perpendicular}}/P{sub {parallel}} > 1) is large. From th… more
Date: March 1, 1994
Creator: Cheng, C. Z.; Qian, Q.; Takahashi, K. & Lui, A. T. Y.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Physical Processes of Substorm Onset and Current Disruption Observed by AMPTE/CCE

Description: A new scenario of AMPTE/CCE observation of substorm onset and current disruption and the corresponding physical processes is presented. Toward the end of the late growth phase, plasma beta increases to greater than or equal to 50 and a low-frequency instability with a wave period of 50-75 seconds is excited and grows exponentially to a large amplitude at the onset of current disruption. At the current disruption onset, higher-frequency instabilities are excited so that the plasma and electromag… more
Date: March 1998
Creator: Cheng, C. Z. & Lui, A. T. Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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