Interaction of Alfvén front with the plasma anomalous resistance layer

2007 ◽  
Vol 73 (2) ◽  
pp. 241-256 ◽  
Author(s):  
N. MAZUR ◽  
E. FEDOROV ◽  
V. PILIPENKO ◽  
A. LEONOVICH

Abstract.The efficiency of the Alfvén impulse excitation in the auroral zone of the terrestrial magnetosphere upon the onset of the anomalous field-aligned resistance has been estimated. The impulsive disturbance excited during the onset of anomalous field-aligned resistance and electric field may signify the transition of a global magnetospheric instability into the explosive phase with positive feedback. We consider the self-consistent problem on excitation of anomalous resistance at the front of field-aligned current and reverse influence upon it from the induced currents. The analytical solution of the self-consistent problem has shown that during the entrance of field-aligned current front into the anomalous resistivity layer (ARL) an Alfvénic impulse is generated. The interaction of the external current with ARL results in the delay of the current growth. The impulse duration and delay time depend on the ratio between the Alfvén damping scale and external current width. The solution obtained indicates the possibility of using the Alfvénic impulse as an indicator of distant occurrence of anomalous resistance.

2021 ◽  
Vol 66 (4) ◽  
pp. 408-411
Author(s):  
A. S. Raevskii ◽  
S. B. Raevskii ◽  
A. Yu. Sedakov ◽  
A. A. Titarenko

2017 ◽  
Vol 43 (6) ◽  
pp. 577-580
Author(s):  
G. S. Malyshev ◽  
A. S. Raevskii ◽  
S. B. Raevskii

2020 ◽  
pp. 86-91
Author(s):  
M.I. Ayzatsky ◽  
K.Yu. Kramarenko ◽  
V.V. Mytrochenko

In this work we describe the procedure of estimation of regenerative beam blowup threshold current in an inhomogeneous accelerating section. The self-consistent problem of transverse motion of particles in the field of dipole mode excited by the beam is solved. The distribution of dipole field near the structure axis and the energy variation of beam particles were calculated before simulating the transverse dynamics. The threshold current for S-band industrial linac designed for radiation sterilization of medical products is estimated.


1987 ◽  
Vol 127 ◽  
pp. 495-496
Author(s):  
Herwig Dejonghe

Triaxial separable potentials V(λ, μ,ν) = fλ + fμ + fν ≥ 0, with admit three constants of the motion (see de Zeeuw 1985 for more details), for which we can take the following set: Here vλ, and vν are the velocity components in the (λ, μ,ν) coordinate system, and we recognize in E the binding energy per unit mass.


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