Protoplanetary (?) disks and the dawn of planets

I will discuss our understanding of disk bulk properties and their evolution at the time of planet formation. I will critically revisit our current understanding of disk masses and discuss the evidence for disk-planet interaction, suggesting that planet formation occurs very early in the disk lifetime and significantly affects the evolution of the (observed) disk properties. I will discuss the recent progress and challenges in trying to constraint the initial disk properties. I will also discuss some of the hints that the common framework of viscously evolving disks may show discrepancies with the observed trends, and how we can try to design tests to constrain the importance of winds in disk evolution.


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