High Energy Astrophysics
- Fall 2016
Homework #2 - due September 28
1. Using dimensional analysis, find an expression for the speed of
sound in a medium of density, ρ, and pressure, P.
2. Derive equations for the ratio of pressures and temperatures at a
shock front.
3. If the temperature of a 2000 year old SNR is 107 K and
the shock speed is 2000 km/s, what will the temperature and shock
speed be when the SNR is 5000 years old?