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Remote Sensing of Extrasolar Planets

Presenter: Michael Line, University of California, Santa Cruz
When: May 13, 2014 3PM PDT

Thanks to the Kepler spacecraft, we now know that nearly every star in our galaxy possesses a planet. Understanding these planets is key to understanding our place in the universe. Over the past decade we have begun to characterize exoplanet atmospheres using ground and space based observatories. Such observations reveal clues to the composition and temperature structures of these planets. Dr. Line will discuss how we can use statistical methods combined with radiative transfer, known as atmospheric retrieval, to infer the temperatures and compositions of these planets, and will describe what we have learned about a small handful of extra solar planet atmospheres from these methods. Understanding the composition of these objects offer clues to the atmospheric chemistry, dynamics, their formation history. Time permitting, Dr. Line will address how we might apply these tools to earth-like transmission spectra and what we might be able to say about their atmospheres.

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