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AST 383D

Syllabus

Course Contents

Problem Sets

Courses
Course Contents


  1. Basic Properties of Stars
    • Overview of stellar structure and evolution
    • Equation of hydrostatic equilibrium; virial theorem
    READ: HKT, Ch. 1 + 2

  2. Basic Equations
    • Structure equations
    • Equation of state
    • Thermodynamic properties
    • Ionization; Saha equation
    READ: HKT, Ch. 3

  3. Heat Transport: Radiation
    • Radiative transfer
    • Opacities
    READ: HKT, Ch. 4

  4. Heat Transport: Convection
    • Schwarzschild criterion
    • Mixing-length theory
    READ: HKT, Ch. 5

  5. Stellar Stability and Pulsations
    • Pulsational instability
    • Instability strip
    • Kappa-mechanism
    READ: HKT, Ch. 8.1-2

  6. Nuclear Energy Generation
    • Basic nuclear physics
    • Hydrogen burning; triple-alpha process
    • Advanced stages of burning (s-process, r-process)
    • neutrino losses
    READ: HKT, Ch. 6

  7. Stellar Models
    • Polytropes; Lane-Emden equations
    • Numerical methods
    READ: HKT, Ch. 7

  8. Detailed Structure and Evolution
    • Low-mass stars: life and death of the Sun
    • High-mass stars
    READ: HKT, Ch. 9

  9. Stellar Rotation and Magnetic Fields
    • Meridional circulation; Eddington-Sweet timescale
    • Stellar dynamos
    READ: references given in class

  10. Violent Deaths
    • Stellar winds; eta Carinae
    • Supernova explosions
    READ: HKT, CH. 2.3+11; and references given in class

  11. Physics of Star Formation
    • Jeans instability; opacity limited fragmentation
    • Angular momentum problem
    • Protostellar collapse and accretion
    READ: HKT, CH. 2.14; and references given in class

  12. The First Stars
    • Cosmological initial conditions
    • Formation physics
    • Structure and evolution
    • Impact on cosmology
    READ: references given in class

 









30 August 2007
Astronomy Program · The University of Texas at Austin · Austin, Texas 78712
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