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ASTR 400A: Theoretical Astrophysics, Fall 2025, University of Arizona, Steward Observatory

Course Overview

Syllabus
Schedule

Course Materials

Week 1
- Intro & orders of magnitude
- An Overview of Stellar Evolution
Week 2
- Mechanical and thermal equilibrium
- Equations of State I
Week 3
- Equations of State II
- Polytropic stellar models
Week 4
- Radiative energy transport & conduction
- Opacities
Week 5
- Convection
- Convection II
Week 6
- Stellar Energy Sources
- Stellar Energy Sources II
Week 7
- Stellar Atmospheres
- Star Formation and the Pre-Main Sequence
Week 8
- Evolution On The Main-Sequence
- Post-Main Sequence Evolution through Helium Burning
Week 9
- Late evolution of low- and intermediate-mass stars
- Pre-supernova evolution of massive stars

Assignments

Pre-Class Assignments
- PCA 1
In-Class Assignments
Homeworks
- Homework 1
- Homework 2
Final Project

.md

Week 9

Contents

Tuesday, October 21, 2025
Thursday, October 23, 2025

Week 9#

Tuesday, October 21, 2025#

Slides are viewable HTML.

Note

Right click to open in a new tab instead of downloading slides!

Thursday, October 23, 2025#

Slides are viewable HTML.

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Post-Main Sequence Evolution through Helium Burning

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Late evolution of low- and intermediate-mass stars

Contents

Tuesday, October 21, 2025
Thursday, October 23, 2025

By Carl E. Fields

© Copyright 2025.