Lectures (Video)

- 1. Introduction
- 2. Planetary Orbits
- 3. Our Solar System and the Pluto Problem
- 4. Discovering Exoplanets: Hot Jupiters
- 5. Planetary Transits
- 6. Microlensing, Astrometry and Other Methods
- 7. Direct Imaging of Exoplanets
- 8. Introduction to Black Holes
- 9. Special and General Relativity
- 10. Tests of Relativity
- 11. Special and General Relativity (cont)
- 12. Stellar Mass Black Holes
- 13. Stellar Mass Black Holes (cont)
- 14. Pulsars
- 15. Supermassive Black Holes
- 16. Hubble's Law and the Big Bang
- 17. Hubble's Law and the Big Bang II
- 18. Hubble's Law and the Big Bang III
- 19. Omega and the End of the Universe
- 20. Dark Matter
- 21. Dark Energy and the Accelerating Universe and the Big Rip
- 22. Supernovae
- 23. Other Constraints: The Cosmic Microwave Background
- 24. The Multiverse and Theories of Everything

## Frontiers and Controversies in Astrophysics - Lecture 16

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Lecture 16 - Hubble's Law and the Big Bang
The third and final part of the course begins, consisting of a series of lectures on cosmology. A brief history of how cosmology developed into a scientific subject is offered. The discovery of dark energy, along with dark matter, played a crucial role in the development of cosmology. The lecture then discusses the discovery of spiral nebulae in 1920, as well as the "Great Debate" over what they were. Hubble's famous redshift diagram is presented as the basis for Hubble's Constant and Big Bang cosmology. The difficulty of measuring distance of objects in space, and how to do it using the parallax method and the standard candle method, are discussed. Measure brightness using the magnitude scale is explained. Class ends with a review of logarithms.
Prof. Charles Bailyn
ASTR 160 - Frontiers and Controversies in Astrophysics, Spring 2007 (Yale University: Open Yale) http://oyc.yale.edu Date accessed: 2009-05-12 License: Creative Commons BY-NC-SA |

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