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PHY 521 Fall 2023

PHY 521: Stars

Equation of State

Degenerate Electrons
EOS regimes

Reactions

p-p chain vs. CNO
Integrating Stiff ODEs
Application: Nuclear Reaction Networks
- Integration Example

Stellar Models

Lane-Emden polytrope equation
Solving Lane-Emden via Shooting
Exploring MESA models

Close Binary Evolution

Equipotentials

Explosions!

hot-CNO and breakout
Simple supernova lightcurve
Nuclear statistical equilibrium
Neutron star structure

Homework solutions

Homework 1 solutions
Homework 2 solutions
Homework 3 solutions
Homework 4 solutions
Homework 5 solutions
Homework 6 solutions
Homework 7 solutions
Homework 8 solutions

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Integrating Stiff ODEs

Integrating Stiff ODEs#

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Implicit Methods for ODEs

By Michael Zingale

© 2023; CC-BY-NC-SA 4.0