Characterizing Space Plasmas: A Data Driven Approach

1 Basic Equations and Concepts 11.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 Fundamental Equations . . . . . . . . . . . . . . . . . . . . . . . 21.3 Statistical Equations . . . . . . . . . . . . . . . . . . . . . . . . . 41.4 Electric and Magnetic Field in Space . . . . . . . . . . . . . . . . 71.5 Transformation of E and B Fields . . . . . . . . . . . . . . . . . 111.6 Macroscopic Equations . . . . . . . . . . . . . . . . . . . . . . . . 181.7 Plasma Measurements . . . . . . . . . . . . . . . . . . . . . . . . 221.8 Examples of Plasma Distributions . . . . . . . . . . . . . . . . . 311.9 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . 342 Charged Particle Acceleration 392.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392.2 Motion in Uniform E and B Field . . . . . . . . . . . . . . . . . 402.3 E B Acceleration . . . . . . . . . . . . . . . . . . . . . . . . . 452.4 Motion in Inhomogeneous Magnetic Field . . . . . . . . . . . . . 572.5 Other Particle Acceleration Mechanisms . . . . . . . . . . . . . . 632.6 Waves and Wave-Particle Interaction . . . . . . . . . . . . . . . . 682.7 Cyclotron Resonance Theory . . . . . . . . . . . . . . . . . . . . 722.8 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . 783 Escaping Solar Particles 813.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 813.2 Observations of Solar Wind Ions . . . . . . . . . . . . . . . . . . 833.3 Observations of Solar Wind Electrons . . . . . . . . . . . . . . . 913.4 Solar Wind Models . . . . . . . . . . . . . . . . . . . . . . . . . . 963.5 Kinetic Models of the SW . . . . . . . . . . . . . . . . . . . . . . 993.6 Heuristic Interpretation of the Solar Wind . . . . . . . . . . . . . 1043.7 Electrostatic Solitary Waves . . . . . . . . . . . . . . . . . . . . . 1083.8 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . 1104 Collisionless Shocks 1174.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1174.2 Observations of Earth's Bow Shock . . . . . . . . . . . . . . . . . 1194.3 Entropy Across Earth's Bow Shock . . . . . . . . . . . . . . . . . 1254.4 ICME Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1334.5 Nonlinear Structures Upstream of Bow Shock . . . . . . . . . . . 1404.6 Growth of Nonlinear Structure . . . . . . . . . . . . . . . . . . . 1584.7 Acceleration of Particles at the Bow Shock . . . . . . . . . . . . 1614.8 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . 1655 Current Sheets and Boundaries 1835.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1835.2 Magnetic Reconnection on Earth . . . . . . . . . . . . . . . . . . 1845.3 SW Entry into Magnetosphere through Cusps . . . . . . . . . . . 1915.4 Particle Motions in Magnetic Neutral Regions . . . . . . . . . . . 1985.5 Kinetic Models of Current Sheets . . . . . . . . . . . . . . . . . . 2045.6 Kinetic Equations for Boundaries . . . . . . . . . . . . . . . . . . 2085.7 Tearing Mode Instability . . . . . . . . . . . . . . . . . . . . . . . 2145.8 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . 2186 Current and Electric Field 2256.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2256.2 Observations of Electron and Ion Beams . . . . . . . . . . . . . . 2266.3 Motion Parallel to E and B Fields . . . . . . . . . . . . . . . . . 2316.4 Electric Potential . . . . . . . . . . . . . . . . . . . . . . . . . . . 2366.5 A Model of Double Layer . . . . . . . . . . . . . . . . . . . . . . 2466.6 Currents in the Magnetosphere and Ionosphere . . . . . . . . . . 2516.7 Ring Current in Magnetospheres . . . . . . . . . . . . . . . . . . 2566.8 Magnetosphere-Ionosphere Coupling . . . . . . . . . . . . . . . . 2646.9 Auroral Kilometric Radiation . . . . . . . . . . . . . . . . . . . . 2726.10 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . 2757 Topics for Further Studies 2817.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2817.2 Large-scale Current Structures . . . . . . . . . . . . . . . . . . . 2817.3 Heating Space Plasmas . . . . . . . . . . . . . . . . . . . . . . . . 2847.4 Boltzmann Collisional Term (@f/@t)c . . . . . . . . . . . . . . . 2867.5 Runaway Electrons . . . . . . . . . . . . . . . . . . . . . . . . . . 2927.6 Collective Interactions . . . . . . . . . . . . . . . . . . . . . . . . 295