Physics 231: Section 2 The Physics of Astrophysics

1. Physics 231: Section 2The Physics of Astrophysics http://mimas.physics.drexel.edu/phys231 Phys 231, Topic 2: The Physics of Astrophysics

2. Two-Body Interaction Phys 231, Topic 2: The Physics of Astrophysics

3. Orbits follow conic sections Unbound Bound Phys 231, Topic 2: The Physics of Astrophysics

4. Kepler’s 1st and 2nd Laws Each purple region has the same area and is swept out in equal time Phys 231, Topic 2: The Physics of Astrophysics

5. Gravity from an extended (spherical) distribution A “sees” mass 1+mass 2 B “sees” only mass 1 Phys 231, Topic 2: The Physics of Astrophysics

6. Rotation curve of the Milky Way Phys 231, Topic 2: The Physics of Astrophysics

7. v Phys 231, Topic 2: The Physics of Astrophysics

8. Waves interfere with one another Phys 231, Topic 2: The Physics of Astrophysics

9. The Wave Nature of Light Phys 231, Topic 2: The Physics of Astrophysics

10. Electromagnetic Waves Phys 231, Topic 2: The Physics of Astrophysics

11. Newton’s Double Prism experiment Phys 231, Topic 2: The Physics of Astrophysics

12. The Electromagnetic Spectrum Phys 231, Topic 2: The Physics of Astrophysics

13. The Solar Spectrum Phys 231, Topic 2: The Physics of Astrophysics

14. SDSS Response Function Phys 231, Topic 2: The Physics of Astrophysics

15. Spectral lines of some common elements Phys 231, Topic 2: The Physics of Astrophysics

16. Phys 231, Topic 2: The Physics of Astrophysics

17. Kirchoff’s Spectroscopy Laws Phys 231, Topic 2: The Physics of Astrophysics

18. Doppler Shift Phys 231, Topic 2: The Physics of Astrophysics

19. Maxwell-Boltzmann Distribution Phys 231, Topic 2: The Physics of Astrophysics

20. The RHS of the SAHA equation Earth Atmospheric Densities Solar Densities Phys 231, Topic 2: The Physics of Astrophysics

21. Ionization fraction of hydrogen Earth Solar Phys 231, Topic 2: The Physics of Astrophysics