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PHYS632
The Physics of Astrophysics II
(3 credits)

Prerequisite: PHYS631.

Overview

The course follows on from PHYS631, and provides an introduction to gas dynamics within astrophysical environments. The focus is on the interactions of matter & radiation with electromagnetic fields on macroscopic scales. Topics include single-fluid theory, differential motion, equilibria of self-gravitating masses &gravitational collapse, viscosity & fluid instabilities, shears, turbulence & shocks, magnetohydrodynamics and plasma physics. These physical processes will be illustrated using recent results from the astrophysical literature, and will include galaxy formation, star-formation, giant planets & neutron stars, viscous accretion disks in both galactic & extragalactic objects, the ionization fronts in expanding HII regions, blast waves from supernova remnants, solar flares and MHD flows from accretion disks.

Course Objectives

The primary academic objects of the course are
  • To provide the student a broad understanding of the physics underlying the interactions between matter and radiation within astrophysical environments.
  • To introduce the student to the professional astrophysical literature
  • To introduce the student to the various techniques and tools used in modern astrophysics and astronomy

Outline Syllabus

  • Review of Fluid Mechanics & Kinetic Theory
  • Diffusive Transport Basics
  • Fluids as Continua
  • Self-Gravitating Spherical Masses
  • Viscous-free, Barotropic Flows
  • Viscous Accretion Disks
  • Fluid Instabilities, Viscous Shears, Turbulence and Convection
  • Propagation, Dispersion & Amplification of Spiral Density Waves
  • Supersonic Flows & Shock Waves
  • Ionization Fronts and Expanding HII Regions
  • Survey of Magnetohydrodynamics & Plasma Physics for Astrophysics
  • Course Review

Previous Runs of this Course

2006 Fall [TBD]


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