Introduction to Astrophysics

Yale Course , Spring 2007 , Prof. Charles Bailyn

258 students enrolled


Planetary Orbits - Our Solar System and the Pluto Problem - Discovering Exoplanets: Hot Jupiters - Planetary Transits - Microlensing, Astrometry and Other Methods - Direct Imaging of Exoplanets - Introduction to Black Holes - Special and General Relativity - Tests of Relativity - Special and General Relativity - Stellar Mass Black Holes - Pulsars - Supermassive Black Holes - Hubbles Law and the Big Bang - Omega and the End of the Universe - Dark Matter - Dark Energy and the Accelerating Universe and the Big Rip - Supernovae - Other Constraints: The Cosmic Microwave Background - The Multiverse and Theories of Everything

Lecture 7: Direct Imaging of Exoplanets

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        Lecture Details

        FrontiersControversies in Astrophysics (ASTR 160) Class begins with a problem on transits and learning what information astronomers obtain through observing them. For example, radii of stars can be estimated. Furthermore, applying the Doppler shift method, one can find the mass of a star. Finally, a stars density can be calculated. A second method for identifying planets around stars is introduced the astrometry method. The method allows for an extremely accurate assessment of a stars precise position in the sky. Special features of the astrometry method are discussed and a number of problems are solved. A short summary is given on the three methods astronomers use to identify exoplanets. Class ends with an overview of upcoming space missions and the hope of detecting the presence of biological activity on other planet. 0000 - Chapter 1. Calculating Planetary Density from Transits and Doppler Shifts 0914 - Chapter 2. Astrometry to Assess Planetary Position 2355 - Chapter 3. Summary of Planetary Identification Methods 3412 - Chapter 4. Kepler, SIM, and TPF Complete course materials are available at the Open Yale Courses website httpopen.yale.educourses This course was recorded in Spring 2007.




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