Plasma Interaction at Io

Detailed description

This projects deals with global simulations of Io's interaction with the plasma torus by means of single-species hybrid model. Simulation set contains three hybrid simulations with variable mass loading rates and charge exchange rates. Analysis of the simulation results is published by Sebek et al., J. Geophys. Res. Space Physics, 121, pp. 7514-7534, 2016, doi: 10.1002/2016JA022477

Io's neutral atmosphere has a radial profile
n(R)=n_atm*( W_int*exp(-(R-R_Io)/H_atm) + W_ext/R^2)
here n_atm is neutral density at the surface. It governs probability of charge exchange and thus total charge exchange rate. Mass loading rate is prescribed in the simulation by the value of parameter Q_ml.

Coordinate system is IPhiOmega where the X axis is parallel to plasma flow, the Y axis is in radial direction towards Jupiter and the Z axis completes right-handed system.

Background plasma conditions correspond to flyby I0 of Galileo spacecraft around Io. Background magnetic field has magnitude B_0=1,840 nT. Background plasma has number density n_0=3,500 cm^-3, temperature T=120eV and flows at velocity 57 km.s^-1 relative to Io. We assume one plasma species, singly ionized ions with mass m_i=22m_p.

Projects

List of simulations

REF Hybrid simulation of Io's plasma interaction with high charge exchange rate and mass loading rate. Available products: T_per / T_par, Beta_par, B_x, B_y, B_z, Density, E_x, E_y, E_z, P_par, P_perp, U_x, U_y, U_z
Coordinates Coordinate system IPhiOmega: X axis is parallel to the plasma flow, Y axis is in radial direction towards Jupiter, Z axis completes right-handed system.	Initial conditions Background plasma conditions correspond to the flyby I0 of Galileo around Io, see project description for details. Simulation parameters, see project description for details: Total mass loading rate Q_ml = 10 x 10^27 s^-1; Surface neutral density n_atm = 5.1 x 10^8 cm^-3; Total charge exchange rate Q_cx = 42.3 x 10^27 s^-1.	Parameters Time step: dt=0.01 in units of inversed ion gyrofrequency. Cell size: dx=dy=dz=0.05 in units of Io's radius
Simulation presets (no presets available for this simulation)	Products in simulation T_per / T_par - Ion temperature anisotropy Beta_par - Ion parallel beta B_x - Magnetic field component Bx B_y - Magnetic field component By B_z - Magnetic field component By Density - Ion charge density E_x - Electric field component Ex E_y - Electric field component Ey E_z - Electric field component Ez P_par - Ion parallel pressure P_perp - Ion perpendicular pressure U_x - Ion current density component Ux U_y - Ion current density component Uy U_z - Ion current density component Uz

LML Hybrid simulation of Io's plasma interaction with lower mass loading rate. Available products: T_per / T_par, Beta_par, B_x, B_y, B_z, Density, E_x, E_y, E_z, P_par, P_perp, U_x, U_y, U_z
Coordinates Coordinate system IPhiOmega: X axis is parallel to the plasma flow, Y axis is in radial direction towards Jupiter, Z axis completes right-handed system.	Initial conditions Background plasma conditions correspond to the flyby I0 of Galileo around Io, see project description for details. Simulation parameters, see project description for details: Total mass loading rate Q_ml = 0.5 x 10^27 s^-1; Surface neutral density n_atm = 5.1 x 10^8 cm^-3; Total charge exchange rate Q_cx = 27.9 x 10^27 s^-1.	Parameters Time step: dt=0.01 in units of inversed ion gyrofrequency. Cell size: dx=dy=dz=0.05 in units of Io's radius
Simulation presets (no presets available for this simulation)	Products in simulation T_per / T_par - Ion temperature anisotropy Beta_par - Ion parallel beta B_x - Magnetic field component Bx B_y - Magnetic field component By B_z - Magnetic field component By Density - Ion charge density E_x - Electric field component Ex E_y - Electric field component Ey E_z - Electric field component Ez P_par - Ion parallel pressure P_perp - Ion perpendicular pressure U_x - Ion current density component Ux U_y - Ion current density component Uy U_z - Ion current density component Uz

LCX Hybrid simulation of Io's plasma interaction with lower charge exchange rate. Available products: T_per / T_par, Beta_par, B_x, B_y, B_z, Density, E_x, E_y, E_z, P_par, P_perp, U_x, U_y, U_z
Coordinates Coordinate system IPhiOmega: X axis is parallel to the plasma flow, Y axis is in radial direction towards Jupiter, Z axis completes right-handed system.	Initial conditions Background plasma conditions correspond to the flyby I0 of Galileo around Io, see project description for details. Simulation parameters, see project description for details: Total mass loading rate Q_ml = 10 x 10^27 s^-1; Surface neutral density n_atm = 1.5 x 10^8 cm^-3; Total charge exchange rate Q_cx = 13.5 x 10^27 s^-1.	Parameters Time step: dt=0.01 in units of inversed ion gyrofrequency. Cell size: dx=dy=dz=0.05 in units of Io's radius
Simulation presets (no presets available for this simulation)	Products in simulation T_per / T_par - Ion temperature anisotropy Beta_par - Ion parallel beta B_x - Magnetic field component Bx B_y - Magnetic field component By B_z - Magnetic field component By Density - Ion charge density E_x - Electric field component Ex E_y - Electric field component Ey E_z - Electric field component Ez P_par - Ion parallel pressure P_perp - Ion perpendicular pressure U_x - Ion current density component Ux U_y - Ion current density component Uy U_z - Ion current density component Uz

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Plasma Interaction at Io

Detailed description

Projects

List of simulations

Coordinates

Initial conditions

Parameters

Simulation presets

Products in simulation

Coordinates

Initial conditions

Parameters

Simulation presets

Products in simulation

Coordinates

Initial conditions

Parameters

Simulation presets

Products in simulation