Nuclei, Neutrinos, and Astrophysics at Berkeley “A mighty flame follows a tiny spark” — Dante Alighieri

The shape of the P-Cygni profile is effected by several properties of the supernova atmosphere. We demonstrate the effect of four important ones here:

1. The velocity of the photosphere.
2. The optical depth of the line.
3. The density structure of the atmosphere.
4. The line source function.