Protoplanetary Disk Evolution at Millimeter Wavelengths

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• Jonathan Williams
• Wednesday 18 July 2012, 13:15-13:45
• Sackler Lecture Theatre, IoA.

If you have a question about this talk, please contact Ryan Cooke.

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It’s becoming increasingly more evident from exoplanet surveys that the end state of a typical circumstellar disk is a planetary system. It is therefore imperative that we learn about the properties of all disks, not just a few bright ones! We are at the cusp of being able to make comprehensive millimeter wavelength surveys of young protoplanetary disks in nearby star forming regions and learn about the evolution of the gas and dust content and the grain size distribution. I will present some recent results from millimeter continuum surveys of intermediate aged regions, 2-5 Myr, that show very rapid evolution of the dust content, and a first look at a CO isotopologue line survey in Taurus that inform us of the initial gas content and gas-to-dust ratio. With the ALMA deadline just passed, I will end by discussing how this instrument will make possible direct statistical links between disk evolution and planetary architectures.

This talk is part of the Institute of Astronomy Seminars series.

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