Concerning the interaction of a transmitted interplanetary impulse with a plasmaspheric drainage plume: First results from 3-D hybrid kinetic modeling

Abstract

We present a new hybrid kinetic model to simulate the response of plasmaspheric drainage plumes to impulsive interplanetary pressure pulses. Since particle distributions attending the interplanetary pulses and in the drainage plume are non-Maxwellian, wave-particle interactions play a crucial role in energy transport within and outside the plumes. Finite gyroradius effects become important in mass loading of the transmitted impulse with the drainage plume ions. A forward-reverse shock structure develops from the initial step-like transmitted shock. First results show that the impulse causes strong deformations in the global structure of the plume. The anisotropic ion velocity distribution functions at the impulse front and inside the plume help us determine energy transport via wave-particle interactions throughout the Earth's inner magnetosphere.

Hybrid Kinetic Modeling of the Magnetosheath Impulsive Plasma Cloud Penetration Through the Magnetopause and Comparison With MMS and Other Spacecraft Observations

“…The size of the mushroom-like head is about ≈10 L = 2,000 km in Y direction and ≈7 L = 1,400 km in Z direction. Note here that a formation of the mushroom-like head was also observed in the modeling of the interaction between a drainage plume and transmitted impulses (Lipatov & Sibeck, 2020).…”

“…The ion distribution function f s (t, x, v) is described by the Vlasov equation as documented in Lipatov and Sibeck (2020) and Lipatov et al (2005Lipatov et al ( , 2006:…”

“…The ion distribution function f s ( t , x , v ) is described by the Vlasov equation as documented in Lipatov and Sibeck (2020) and Lipatov et al. (2005, 2006): $$$\frac{\partial }{\partial t}{f}_{s}+\mathbf{v}\frac{\partial }{\partial \mathbf{x}}{f}_{s}+\frac{\mathbf{F}}{{M}_{s}}\frac{\partial }{\partial \mathbf{v}}{f}_{s}=0,$$$ where F denotes the electric and magnetic forces acting on the ions and index s denotes the ion species.…”

Hybrid Kinetic Model of the Interaction Between the Dense Plasma Clouds and Magnetospheric Plasma on Large Time and Spatial Scales, and Comparison With MMS Observations

“…The ion mass and charge state are $${M}_{1}={M}_{{\mathrm{H}}^{+}}$$, Z 1 = 1 and $${M}_{2}={M}_{{\mathrm{H}}^{+}}$$, Z 2 = 1 for magnetospheric and cloud ions. The hybrid model includes the ion motion equation, Ampére's law, induction equation, quasi‐neutrality condition, generalized Ohm's law, and an adiabatic approach for the electron pressure (see e.g., Lipatov (2002); Lipatov and Sibeck (2020)).…”