"Lec 5 - Planetary Transits" Frontiers/Controversies in Astrophysics (ASTR 160) Professor Bailyn talks about student responses for a paper assignment on the controversy over Pluto. The central question is whether the popular debate is indeed a "scientific controversy." A number of scientific "fables" are discussed and a moral is associated with each: the demotion of Pluto (moral: science can be affected by culture); the discovery of 51 Peg b (morals: expect the unexpected, and look at your data); the disproof of pulsation as explanation for the Velocity Curves (moral: sometimes science works like science). 00:00 - Chapter 1. A Case for Pluto? Interactions between Culture and Science 08:53 - Chapter 2. Velocity and Center of Mass 24:23 - Chapter 3. Observations of Hot Jupiters and the Selection Effect 31:55 - Chapter 4. Hot Jupiters - Double or Pulsating Stars? 39:49 - Chapter 5. Measuring Doppler Shifts to Understand Hot Jupiters Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses This course was recorded in Spring 2007.
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Tags: 51 Pegasus Alan Stern atomic transition Brown center mass Doppler shift spectrum double star hypothesis edge-on orbit face-on Michael Mike New Horizons mission Pluto pulsating radial velocity selection effect sine curve
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Duration: 49m 21s
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Lec 1- Introduction to Frontiers Controversies in Astrophysics
Lec 3 - Our Solar System and the Pluto Problem
Lec 4 - Discovering Exoplanets: Hot Jupiters
Lec 6 - Microlensing, Astrometry and Other Methods
Lec 7 - Direct Imaging of Exoplanets
Lec 8 - Introduction to Black Holes
Lec 9 - Special and General Relativity
Lec 11 - Special and General Relativity (cont.)
Lec 12 - Stellar Mass Black Holes
Lec 13 - Stellar Mass Black Holes (cont.)
Lec 15 - Supermassive Black Holes
Lec 16 - Hubble's Law and the Big Bang
Lec 17 - Hubble's Law and the Big Bang (cont.)
Lec 18- Hubble's Law and the Big Bang (cont.)
Lec 19 - Omega and the End of the Universe
Lec 21 - Dark Energy and the Accelerating Universe and the Big Rip
Lec 23 - Other Constraints: The Cosmic Microwave Background