ASTR 620: Galaxies
Stacy McGaugh
Course Outline, Fall 2007
- I. Introduction
- General Properties of Galaxies
- The Hubble Sequence and other morphological classification systems
- Review: stars and stellar evolution
- Distance scale
- [B&M 2-7; B&T 1]
- II. Milky Way
- Content: stars, dust, gas
- Stellar luminosity function, initial mass function, birth rate
- Distribution and kinematics of stellar populations in the Milky Way
- Asymmetric drift, Bottlinger diagram
- Disk heating: Spitzer-Schwarzschild mechanism
- Formation Models of our Galaxy
- Chemical evolution
- Stellar population synthesis
- [B&M 4,5,8,10; B&T 9]
- III. Galactic Rotation and Stellar Dynamics
- Solar motion and the local standard of rest
- Oort constants
- Stellar motions in disk and elliptical potentials
- Rotation curve of our Galaxy
- [B&T 2,3]
- IV. Mass Discrepancies & Dark Matter
- Rotation and dynamics of external galaxies
- Tully-Fisher relation for spiral galaxies
- Mass determinations and mass-to-light ratios on various scales
- Dark matter candidates
- Halo and Galaxy Formation Models
- Modified Newtonian Dynamics
- [B&M 11; B&T 10]
- V. Disk Dynamics and Spiral Structure
- Disk stability
- Spiral density wave theory
- Tracers of spiral structure
- Stochastic star formation
- Bars
- Warps
- [B&T 6]
- VI. Elliptical Galaxies
- Equations of stellar hydrodynamics
- Stellar relaxation
- Velocity ellipsoids, triaxiality
- Mass profiles
- Fundamental plane of elliptical galaxies
- [B&M 11; B&T 2-5]
- VII. Statistical Galaxy Properties
- Galaxy luminosity function
- Bivariate distribution of size and surface brightness
- The dependence of the luminosity function on environment and redshift
- [B&M 4]
- VIII. Galaxy Evolution and the Effects of Environment
- Galaxy Groups, Clusters, and Environments
- Tidal interactions and mergers
- Dynamical friction, cannibalism, and ram presssure stripping
- Gas content of clusters
- Large Scale Structure
- [B&M 7-9]
- IX. Galactic Nuclei
- Observational summary of the Galactic center
- Search for dormant black holes in nearby galaxies
- Active galactic nuclei & starbursts
- [B&M 4]
Main texts: Galactic Astronomy by Binney & Merrifield [B&M],
Princeton U. Press, 1998, and
Galactic Dynamics by Binney & Tremaine [B&T],
Princeton U. Press, 1987.
Other readings: preprints, journal, & review articles as assigned.
Return to ASTR 620 Home Page