Buscar
Mostrando ítems 1-10 de 210
Low-dimensional chaos and wave turbulence in plasmas
(ROYAL SOC, 2008)
We investigated drift-wave turbulence in the plasma edge of a small tokamak by considering solutions of the Hasegawa-Mima equation involving three interacting modes in Fourier space. The resulting low-dimensional dynamics ...
On the stability of perpendicular particle drifts in cold magnetoplasmas
(Blackwell Publishing Ltd, 2002)
Assessment of the stability of perpendicular particle drifts in cold magnetoplasmas shows that their free energy can stimulate wave activity under various circumstances that include nonoscillatory (aperiodic, purely growing) ...
Nonmodal energetics of electromagnetic drift waves
(2000-07-01)
The linear properties of an electromagnetic drift-wave model are examined. The linear system is non-normal in that its eigenvectors are not orthogonal with respect to the energy inner product. The non-normality of the ...
Proton-cyclotron instability induced by the thermal anisotropy of minor ions
(Blackwell Publishing Ltd, 2002)
We study ion cyclotron instabilities due to the thermal anisotropy of minor heavy ions. Very large thermal anisotropics have been observed in O +5 ions in coronal holes [Cranmer, 2001], and as is well known, the thermal ...
Quiet time equatorial F region vertical plasma drift model derived from ROCSAT‐1 observations
(American Geophysical Union, 2008-05-03)
We have used five years of measurements on board the ROCSAT‐1 satellite to develop a detailed quiet time global empirical model for equatorial F region vertical plasma drifts. This model describes the local time, seasonal ...
Equatorial zonal plasma drifts measured by the C/NOFS satellite during the 2008–2011 solar minimum
(American Geophysical Union, 2013-06-26)
We use the measurements by the Vector Electric Field Investigation (VEFI) on board the Communication/Navigation Outage Forecasting System (C/NOFS) satellite to study the local time and seasonal‐ and longitudinal‐dependent ...
Vortex formation in sheared flow driven fluctuations in nonuniform magnetized dusty gases
(American Physical SocCollege PkEUA, 1998)