Solitary structures of boundary layer waves: observations and theoretical models
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boundary layers plasma waves Alfven waves solitary↗
Engineering topics
Lakhina, G. S.
Publications and source records attributed to Lakhina, G. S..
The creation of small scale pressure pulses in interplanetary space: magnetic holes detected at Cluster and Ulysses
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magnetic holes Ulysses solar wind magnetosphere↗
Phase-steepened Alfven waves, proton perpendicular energization and the creation of magnetic holes and magnetic decreases: teh ponderomotive force
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solar wind magnetic holes magnetic decreases Alfve↗
The extreme magnetic storm of 1??eptember 1859
Using empirical results on the interplanetary magnetic field strengths of magnetic clouds versus velocities, we show that the 1 September 1859 Carrington solar flare most likely had an associated intense magnetic cloud ejection which led to a storm on Earth of DST ~ -1760 nT.
solar flares space weather↗
Bipolar pulse (electron hole) onsets, ion conics, and kinetic Alfven waves in the magnetopause boundary layer: polar
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magnetopause boundary layer bipolar pulse kinetic ↗
Polar cap boundary layer waves: an auroral zone phenomenon
Polar cap boundary layer waves are ELF/VLF electric and magnetic waves detected on field lines just adjacent to the polar cap. Intense waves are present at this location essentially all (96%) of the time.
Weak↗
Global auroras caused by interplanetary shocks
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shocks/pressure pulses betatron acceleration↗
Boundary layer ELF/VLF plasma waves
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POLAR wave imaging results↗
Compression of the tail plasmasheet by interplanetary shocks
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IMP-8 GEOATIL magnetotail↗
POLAR polar cap boundary layer waves: an auroral zone phenomenon
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PCBL waves broadband narrowband↗
Interplanetary shock triggering of auroral substorm activity: a mechanism
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auroral substorm activity↗
Microstructures in the Polar Solar Wind: Ulysses
We find that small (10-200 rP) magnetic decreases comprise a dominant part of the polar solar wind microstructure at Ulysses distances (2.2 AU). These magnetic field dips are almost always bounded by tangential discontinuities, a feature which is not well understood at this time. Hundreds of these events have been examined in detail and a variety of types have been found. These will be described. It is speculated that these structures have been generated by perpendicular heating of ions closer to the Sun and have then been convected to distances of Ulysses. Such structures may be very important for the rapid cross- field diffusion of ions in the polar regions of the heliosphere.
Tsuruyani, Bruce T.↗
Plasma Waves in the Dayside Polar Cap Boundary Layer: Bipolar and Monopolar Electric Pulses and Whistler Mode Waves
We report four different types of plasma waves detected in the near the dayside polar cap boundary layer (PCBL) region at high altitudes (>6 R***sub E***).
plasma↗
Pseudobreakups During January 10, 1997
The January 10, 1997 interplanetary pressure pulse (observed at 0053 UT at Wind) caused a dayside aurora, as seen in Polar Ultraviolet Imager (UVI) data, that propagates tailward and to lower L.
interplanetary pressure pulse polar ultraviolet im↗
A Generation Mechanism for the Polar Cap Boundary Layer Broadband Plasma Waves
A generalized dispersion relation for the coupled lower hybrid, whistler, and current convective modes is obtained. It is found that the presence of density gradients, the current convective modes develop a finite real frequency, but at the same time their growth rates are reduced.
broadband↗
The January 10, 1997 Auroral Hot Spot, Horseshoe Aurora and First Substorm: A CME Loop?
The purpose of this paper is to study an interplanetary Bs feature ahead of a magnetic cloud and its related auroral and magnetospheric responses.
hot spot aurora horseshoe aurora solor loops↗
A Pair of Forward and Reverse Slow-Mode Shocks Detected by Ulysses at ~5AU
We report the first finding of a pair of forward and reverse slow-mode shocks in the distant heliosphere using plasma and magnetic field data from the Ulysses spacecraft located at 5.3 AU and 9 degrees South heliolatitude.
slow-mode shocks Ulysses↗
Nonlinear Evolution of Alfvenic Wave Packets
Alfven waves are a ubiquitous feature of the solar wind. One approach to studying the evolution of such waves has been to study exact solutions to approximate evolution equations. Here we compare soliton solutions of the Derivative Nonlinear Schrodinger evolution equation (DNLS) to solutions of the compressible MHD equations.
nonlinear evolution alfvenic wave packets solar wi↗