Magnetohydrodynamics in Binary Stars / by C. G. Campbell.

Intro; Preface; Contents; 1 Magnetism in Binary Stars; 1.1 Close Binaries; 1.2 Magnetic Fields in Binaries; 1.3 Magnetohydrodynamics; 1.4 Types of Problems; References; 2 Theoretical Prerequisites; 2.1 Introduction; 2.2 Behaviour of B Fields in Plasmas; 2.2.1 Plasma Fluids; 2.2.2 Maxwell's Equations; 2.2.3 The Induction Equation; 2.2.4 Magnetic Force; 2.2.5 The Magneto-Fluid Equations; 2.2.6 Magnetohydrodynamic Waves; 2.2.7 Mach Numbers; 2.2.8 The Free-Fall Alfvén Radius; 2.2.9 Poloidal and Toroidal Representations of B; 2.2.10 Decay Modes of B in a Conductor; 2.2.11 Magnetic Diffusivity

2.3 Basic Dynamo Theory2.3.1 Field Generation; 2.3.2 Types of Mean-Field Dynamos; 2.4 Close Binary Stars; 2.4.1 The Roche Model; 2.4.2 Tidal Theory; 2.4.3 Mass Transfer; 2.4.4 Accretion Discs; Disc Formation and Luminosity; The Steady Viscous Disc; Time-Dependent Viscous Discs; 2.5 Spin Dynamics; References; 3 AM Herculis Stars; 3.1 The Nature of AM Herculis Systems; 3.1.1 AM Herculis; 3.1.2 Other Polars; 3.2 Essential Features; 3.2.1 Magnetic Fields; 3.2.2 The Stellar Components; 3.2.3 The Accretion Stream; 3.2.4 Synchronous Rotation of the Primary; 3.3 MHD Problems

Appendix: Tables of Confirmed SystemsReferences; 4 AM Her Stars: Inductive Magnetic Coupling; 4.1 Introduction; 4.2 Coupling with Vacuum Surroundings; 4.2.1 Induction of Currents in the Secondary; 4.2.2 Solution of the Diffusion Equation; 4.2.3 The Dissipation Torque; 4.2.4 Asymptotic Synchronization Times; Low Field Penetration; High Field Penetration; 4.2.5 Comparison with Observations of AsynchronousSystems; 4.2.6 The Magnetic Orbital Torque; 4.2.7 The Total Magnetic Torque; 4.3 Coupling with a Magnetosphere; 4.3.1 Induction Effects; 4.3.2 Magnetospheric and Secondary Star Motions

4.3.3 Magnetic Field Equations and Boundary Conditions4.3.4 The Poloidal Scalar; 4.3.5 The Toroidal Scalar; 4.3.6 The Magnetic Field Components; 4.3.7 Magnetic Torques; 4.3.8 The Small Asynchronism Torque; 4.4 Orbital Evolution and Mass Transfer; 4.4.1 Orbital Angular Momentum Evolution; 4.4.2 The Accretion and Magnetic Torques; 4.4.3 Modified Gravitational Wave Driving; 4.4.4 Modified Magnetic Wind Driving; 4.5 Summary and Discussion; References; 5 AM Her Stars: Stream Channelling and the Accretion Torque; 5.1 Magnetic Field Channelling; 5.2 Angular Momentum Transfer

5.3 The Accretion Torque5.3.1 The Synchronous Case; 5.3.2 The Asynchronous Case; 5.4 Partial Field Channelling; 5.5 Summary and Discussion; References; 6 AM Her Stars: The Maintenance of Synchronism; 6.1 Non-Dissipative Torques; 6.2 Accretion and Magnetism in Two Dimensions; 6.3 Accretion and Magnetism in Three Dimensions; 6.3.1 Orientations with Zero Torque; 6.3.2 Stability of the Synchronous State; 6.3.3 Stable Synchronous Orientations; 6.4 Quadrupolar Magnetic Fields; 6.5 Gravity and Magnetism; 6.5.1 The Synchronous State; 6.5.2 Stability of the Synchronous State