Contents --- Cosmology
Introduction
Observations and Some Implications
Universe Contains Mass---Why has the Universe Not Collapsed?
Olbers' Paradox and the Dark Night Sky
Universe is Expanding
Universe is Uniform on Large Scales
Cosmological Principle
Perfect Cosmological Principle
No Center to the Expansion in 3-D Space
Review Questions
Cosmic Microwave Background Radiation
Observation
Interpretation
Matter to Energy to Matter Conversion
Cosmic Abundance of Helium and Hydrogen
``Deuterium bottleneck''
Proportions
Elements heavier than Helium
Deuterium as a probe of the early universe
Evidence Supporting the General Big Bang Scheme
Review Questions
Fate of the Universe
Depends on Mass (Curvature of Space)
Critical density
Is The Universe Open or Closed?
Dark Matter
Observations:
Orbital speeds of stars in galaxies
Faint gas shells around ellipticals
Motion of galaxies in a cluster
Hot gas in clusters
Quasar spectra
Gravitational Lensing
Deriving the Geometry of the Universe from the Background Radiation
Review Questions
Embellishments on the Big Bang
Flatness Problem
Horizon Problem
Inflation
The Cosmological Constant
Review Questions
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