Astronomy 161 - Introduction to Solar System Astronomy - Autumn 2007

Are there planets around other stars? Are there Earth-like planets

around other stars? Do any of those harbor life? Intelligent life?

We'd like to know the answers to all of these questions, and in recent

years we've made great progress towards at least answering the first.

To date, more than 260 planets have been found around more than 200

other stars, most in the interstellar neighborhood of the Sun, but a few

at great distance. This lecture reviews the search for ExoPlanets,

discussing the successful Radial Velocity, Transit, and Microlensing

techniques. What we have found so far are very suprising systems,

especially Jupiter-size or bigger planets orbiting very close (few

hundredths of an AU) from their parent stars. Recorded 2007 Nov 29 in

1000 McPherson Lab on the Columbus campus of The Ohio State University.

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