Calculating Galactic Mass

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Gravitational Lensing

What is Gravitational Lensing?

Using Gravitational Lensing

Derivation of Formula

Exercise

Homework Problem

Good Places to Visit

Random Velocities

Derivation of Formula

Exercise

Homework Problem

X-Ray Emissions

Derivation of Formula

Exercise

Homework Problem

Check out these sites

Theorems

Virial Theorem One

Virial Theorem Two

Hydrostatic Equilibrium

Copyright 2002 by Robin Elliott, Curtis Higgins, Erin Reed & Michael Stroh.

With special thanks to Professor Dick McCray.