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Star Formation
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Contents
Introduction
Interstellar Matter
Case Study -- Taurus Molecular Clouds
T Tauri Stars
Spectral Energy Distribution (SED)
Protostars
B335
L1551 IRS 5
L 1544: Pre-protostellar Cores
Magnetic Fields
Prestellar Core
Cores with Protostars
Density Distribution
Mass Spectrum
Line Width - Size Relation
Physical Background
Basic Equations of Hydrodynamics
The Poisson Equation of the Self-Gravity
Free-fall Time
Accretion Rate
Gravitational Instability
Linear Analysis
Sound Wave
Jeans Instability
Gravitational Instability of Thin Disk
Rotating Disk
Convective Instability
Super- and Subsonic Flow
Flow in the Laval Nozzle
Steady State Flow under an Influence of External Fields
Stellar Wind -- Parker Wind Theory
Virial Analysis
Radiative Transfer
Radiative Transfer Equation
Einstein's Coefficients
Relation of Einstein's Coefficients to Absorption and Emissivity
Galactic Scale Star Formation
Schmidt Law
Global Star Formation
Local Star Formation Rate
Gravitational Instability of Rotating Thin Disk
Tightly Wound Spirals
Toomre's Value
Spiral Structure
Density Wave Theory
Group Velocity
Galactic Shock
Local Star Formation Process
Hydrostatic Balance
Bonnor-Ebert Mass
Equilibria of Cylindrical Cloud
Virial Analysis
Magnatohydrostatic Clouds
Subcritical Cloud vs Supercritical Cloud
Ambipolar Diffusion
Ionization Rate
Ambipolar Diffusion
Dynamical Collapse
Inside-out Collapse Solution
Protostellar Evolution of Supercritical Clouds
Accretion Rate
Outflow
Magneto-driven Model
Entrainment Model
Evolution to Star
Example of Numerical Simulation
Evolution in the H-R diagram
Main Accretion Phase
Premain-sequence Evolution
Bibliography
Basic Equation of Fluid Dynamics
What is fluid?
Equation of Motion
Lagrangian and Euler Equations
Continuity Equation
Expression for Momentum Density
Energy Equation
Polytropic Relation
Energy Equation from the First Law of Theromodynamics
Shock Wave
Rankine-Hugoniot Relation
Basic Equations of Magnetohydrodynamics
Magnetohydrodynamics
Flux Freezing
Basic Equations of Ideal MHD
Axisymmetric Case
Hydrostatic Equilibrium
Polytrope
Magnetohydrostatic Configuration
Basic Equations for Radiative Hydrodynamics
Radiative Hydrodynamics
Random Velocity
About this document ...
Kohji Tomisaka 2007-07-08