Syllabus for Ay101, Fall 2008

Suggested readings are in parentheses, with abbreviations de-coded at the bottom.

Part I: Overview and Basic Physics
Week 1: ( Sep 29 - Oct 3 )
1. Observed Properties of Stars (V3:1; G:1 p1-10: BM:3.1-5)
2. The Evolution of Stars over Myr to Gyr (HKT:2; BM:5.1)
3. Introduction to Equations of Stellar Structure (V3:2; HKT:1.1,1.4)
Week 2: (Oct 6--10)
4. Equilibrium Conditions, The Virial Theorem (V3:2; HKT:1.2-1.3)

Part II: Stellar Interiors, Models, and Nucleosynthesis

5. Thermal Physics, Equations of State (G:1 p10-18, HKT:3.1,3,7)
6. Conductive and Radiative Energy Transport (V3:3; HKT:4.5, 4.1-3; G:7 p127-139)
Week 3: (Oct 13--17)
7. Convective Energy Transport (V3:4,5; HKT:5; G:7 p141-144)
8. Mixing Length; Convective Zone Depth (V3:6,7; HKT:5; G:7 p144-145)
9. Introduction to Stellar Models (HKT:7.3)
Week 4: (Oct 20--24)
10. Numerical Solutions to Stellar Structure Equations (V3:9,12,13)
11. Nuclear Reactions in Stars (V3:8; HKT:1.5)
12. Hydrogen Burning; Solar Neutrino Problem (V3:8.1-8.5; HKT:6.1-5)
Week 5: (Oct 27--31)
13. Main Sequence Homology Relations (V3:10; HKT:1.6)
14. Polytropic Solutions to Stellar Structure Equations (HKT:7.1-2)
15. Application of Polytropes Across the HR Diagram
(MID-TERM)

Part III: Stellar Evolution

Week 6: (Nov 3--7)
16. The rho-T Diagram Revisited; Pre-Main Sequence; H and He MS; (V3:11,13,20; HKT:9)
17. Low Mass Star Post-MS ==> White Dwarfs; Degeneracy (V3:14,16; HKT:3.5-3.6,10)
18. Massive Star Post-MS ==> Supernovae; Helium to Carbon to Si Burning, r & s -processes (V3:8.6-9,15; HKT:6.6-8)

Part III: Stellar Atmospheres

Week 7: (Nov 10--14)
19. Radiative Transfer Terminology (V2:4,5; HKT:4.1; G:5; G:7 p127-134; M:1-2)
20. Eq. of Radiative Transfer; Atomic Excitation / Ionization (V2:7.2-3; HKT:3.3-3.4)
21. LTE, Blackbody Radiation (V2:3; HKT:3.2; G:6 G:9 p171; M:5)
Week 8: (Nov 17--21)
22. Plane Parallel ==> Grey Atmosphere (V2:6; M:3)
23. Non-Grey Atmospheres, Eddington Approx (G:7 p136-141, HKT 4.1)
24. Continuous Opacity Sources (V2:7; HKT:4.4,4.6; G:8; M:4)
Week 9: (Nov 24 -- Nov 28) *** THANKSGIVING BREAK WEEK -- NEED TO RECONFIGURE LECTURES ***
25. Line Opacity; Line Broadening Mechanisms (V2:10.2-10.6,11; HKT:4.8.1-4.8.2; G:11(skim); M:8-9)
26. Spectral Line Radiative Transfer (V2:10.8-10.9; HKT:4.8.3; G:13(skim)
27. Model Stellar Atmospheres (V2:8,9; HKT:4.2-4.3; G:9; M:7)
Week 10: (Dec 1--5)
28. Equivalent Width and Curve of Growth (V2:10.7-10.9; HKT:4.8.3; G:13(skim))
29. Spectral Lines as Diagnostics of Abundance, Gravity, Rotation (V2:12; G:15 p372-380; G:16; G:17 up to p.378; G:18 up to p. 411)
30. Chromospheres, Coronae, Stellar Winds (V2:15-16)
Week 11: (Dec 8--12)
Final Examination Period
BM: Binney & Merrifield, Galactic Astronomy
  • V2: Bohm-Vitense, Stellar Astrophys v2: Stellar Atmospheres, 1989
  • V3: Bohm-Vitense, Stellar Astrophys v3: Stellar Structure... 1989
  • HKT: Hansen, Kawaler, & Trimble Stellar Interiors, 1994, 2004 (chapters above are 2nd ed.) **Ay101 text**
  • KW: Kippenhahn & Weigert Stellar Structure and Evolution, 1994
  • G: Gray, The Observation and Analysis of Stellar Photospheres, 1976/1992/2005, (chapters above are 3rd ed.) **Ay 101 text**
  • M: Mihalas, Stellar Atmospheres, 1970/1978. (chapters above are 2nd ed.)

    last updated 2008, September 25