Astr 221 December 3, 2003: Supernovae  

Core Collapse and Pre-Supernova

Reverse Beta Decay

Question: What determines how much closer particles need to be for neutron degeneracy?

Answer: Ratio of neutron to electron masses

Question: What conditions are necessary for neutrinos to transfer heat effectively?

Star Clusters

High Mass Evolutionary tracks

Question: What two evolutionary stages are visable?

Low mass evolutionary tracks

Open cluster NGC 6791

Question: Where will a binary system with two stars of equal mass be on the HR diagram?