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Skip to Search Results- 21Rankin, Robert
- 6Tikhonchuk, Vladimir T.
- 5Kabin, Konstantin
- 5Lu, J. Y.
- 5Marchand, Richard
- 4Tikhonchuk, V. T.
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2007
Rankin, Robert, Watt, Clare E. J.
We investigate parallel electron acceleration due to inertial Alfven wave pulses in the presence of Lorentzian ( kappa) distribution functions which possess high-energy tails. A linear kinetic dispersion relation for inertial Alfven waves is derived whose solutions are used to guide the analysis...
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Field line resonances in a stretched magnetotail: CANOPUS optical and magnetometer observationsournal of Geophysical Research: Space Physics, 107(A7), [pp
Download2002
Tikhonchuk, V. T. , Wanliss, J. A., Rankin, Robert, Samson, J. C.
Ground-based observations support the existence of 1-4 mHz field line resonances (FLRs) at auroral latitudes. The low frequencies suggest that many nightside FLRs are excited on stretched magnetic field lines in the inner plasma sheet. Data from the Canadian Auroral Network for the OPEN Program...
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Field Line Resonances in Earth’s Magnetosphere: A study of their Observation, Characterization and Wave Sources in the Solar Wind
DownloadFall 2015
This thesis is an observational study of field line resonances (FLRs), between 0.5-5 mHz, in the Earth’s magnetosphere, and their correlation with Ultra Low Frequency (ULF) waves in the solar wind. The mechanisms for these phenomena are not yet completely understood and there is still great...
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Increasingly Parallel Pressure Anisotropic Ballooning Instability: A New Mechanism for Magnetospheric Substorm Onset
DownloadFall 2019
Geomagnetic substorms are a process through which energy stored in Earth’s magnetosphere is suddenly and violently released. On the ground, this process is largely observed as a vibrant and dancing display in the aurorae and is well documented, while the sequence of events that occurs in the...
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2005-01-01
Rankin, Robert, Ridley, Aaron J., Gombosi, Tamas I., Clauer, C. Robert, Watanabe, Masakazu, Kabin, Konstantin, Sofko, George J.
On the basis of magnetohydrodynamic simulation results for northward interplanetary magnetic field ( IMF) and significant dipole tilt, we describe internal reconnection processes that occur earthward of the magnetopause subsequent to magnetopause reconnection. We discuss the associated...
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Spring 2011
In this thesis we examine the generation mechanisms of Pc 5 ULF waves during geomagnetic storms. Also, we study the interaction between Pc 5 ULF waves and energetic particles in the radiation belts and the observed energetic particle flux modulation by Pc 5 ULF waves is verified using particle...
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Fall 2020
The development of accurate models of drift resonance between $H^+$ ions and Alfv\'enic ultra-low frequency (ULF) waves is crucial for understanding particle dynamics in the Earth's inner magnetosphere. However, full solutions to the wave equations are complex and approximations are required to...
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2003
Marchand, Richard, Lu, J. Y., Rankin, Robert, Tikhonchuk, Vladimir T.
Nonlinear dynamics of a dispersive field line resonance (FLR) is investigated in a dipolar magnetic geometry using a new finite element code TOPO. Time dependent dispersion and steepening of the perpendicular Alfvén velocity profile lead to the acceleration of dispersive effects and to...
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2008
Kabin, Konstantin, Rankin, Robert, Sydorenko, Dmytro
A two-dimensional nonlinear multi-fluid MHD model of the ionosperic Alfven resonator is presented. The resonator is excited by a packet of shear Alfven waves propagating downward toward the ionosphere from high altitudes. It is shown that the nonlinear (ponderomotive) force of standing...