Ay 123 Lecture 4 - Energy & Opacity

Energy from Nuclear Reactions

Atomic # A

Binding energy

per nucleon

Fission

Fusion

Temperature Dependence of p-p & CNO chains

Bound-free Opacity bf()

Mass-Luminosity Relation

Ay 123 Lecture 5 - Homology & Main Sequence

L M3.9

Mass-Radius Relation

R M0.75

Age and Main Sequence Turn-off