Abstract

Disk and planet formation and evolution are intimately connected, and it is difficult
to consider one without its implications for the other. Initial disk masses, sizes,
surface densities, together with initial disk composition and chemistry are crucial
in the understanding of the disk dispersal mechanisms and the process of planet
formation. In this talk, I will present a brief review of the latest demographic
millimeter surveys of circumstellar disks, ending with recent observations of one
of the nearest-known protoplanetary disks -- the circumbinary disk orbiting V4046 Sgr
-- with the Atacama Large Millimeter/submillimeter Array (ALMA) and SPHERE/IRDIS.