• Weeks of October 7, 14
• C&O Chapter 13
• C&O Chapter 15
• Summary article by Iben & Tutukov

• Homework 4: Due Friday, October 18, 2002
• C&O Problem 13.11
• C&O Problem 13.13
• C&O Problem 14.13 - a computer problem
• The pulsating subdwarf B star PG1336 (remember that one from earlier in the course?) can also be modeled using the same code you wrote for problem 14.13. So, use that code to calculate the pulsations of a star with
• M=0.5 Mo
• R=0.06Ro.
You will have to adjust the mass of the shell (m) and the initial pressure Pi to result in a periodic behavior of v, r, and P (use the same initial velocity as in 14.13). You will also need to adjust the time step that you use so that the 150 steps show about 4 full cycles. Think about how to do this rather than just trying to blindly guess numbers.

• Week of September 30:
• C&O scan Chapter 11
• C&O Chapter 12

• Week of September 17 and 24:

• Weeks of September 3 and 10:
• C&O Chapters 8 and 9
• C&O Pages 82-87 (on magnitudes)

• Assignment (Due September 13): Problems 8.12, 8.14, 8.16, 9.7 and 9.11

• Week of August 26