1. End States Read Your Textbook: Foundations of Astronomy
Chapter 14, 15
Homework Problems Chapter 14
Review Questions: 2, 4, 7, 9-11, 13
Review Problems: 3, 6, 9
Web Inquiries: 1
Homework Problems Chapter 15
Review Questions: 5, 10, 14
Review Problems: 2, 5, 7
Web Inquiries: 2

2. Supernovae

3. Supernova Types
Type I: binary star system, white dwarf accreting material
from a companion.
Spectrum is hydrogen poor.
Type II: massive stars that experience core fusion to iron,
iron core collapses.
Spectrum is hydrogen rich.

4. Death By Mass Main Sequence Stellar Mass END STATE
0.05 to 3 Msun He, C-O White Dwarf
3 to 8 Msun Supernova (Neutron Star)
> 8 Msun Supernova (Black Hole)
White Dwarf: Electron pressure holds up against gravity
Neutron Star: Star is compressed until protons and electrons are crushed together into neutrons. Atomic nuclear pressure supports star against gravity.
Black Hole: The ultimate gravitational collapse.

5. Fission and Fusion

6. White Dwarf Density

7. Chandrasekhar Mass Limit
What is the maximum mass that can be supported by the compacted material of a white dwarf star?

8. Supernovae Remnant

9. Type I Supernova Creation

10. Type I Supernova Components

11. Pulsars
Radio emissions

12. Pulsar Model

13. Binary Stars

14. Black Hole Detection

15. Schwarzchild Radius
The distance from a black hole at which the escape speed is
the speed of light R = 2 GM/c2
Object Mass (solar) Black Hole Event Horizon
Star km
Star km
Star km
Sun km
Jupiter cm
Earth cm

16. Stellar Evolution Summary