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Setting the Initial Conditions for Planets: The Young Circumstellar Disk
Wednesday, September 27, 2017 - 3:30pm PDT
University of Illinois
The origin and evolution of the circumstellar disk around protostars informs the origin and evolution of planets. Only recently, have we even detected the youngest circumstellar disks, but their frequency and typical properties (i.e. mass and size) are still not well known. With our new high-resolution millimeter surveys of protostars, we now have about 20 young disks with radii > 12 AU. However, these only represent less than ¼ of the population in our surveys. One possible explanation for small disks (< 12 AU) in the youngest sources is magnetic braking of material at the earliest stages. In this talk, I explore the early evolution of the disk, implications for dust growth, and discuss future surveys.