Journal
NEW ASTRONOMY REVIEWS
Volume 52, Issue 2-5, Pages 60-77Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.newar.2008.04.004
Keywords
accretion discs; stars : pre-main-sequence; planetary systems : protoplanetary discs; planetary systems : formation
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I review the processes that shape the evolution of protoplanetary discs around young, solar-mass stars. I first discuss observations of protoplanetary discs, and note in particular the constraints these observations place on models of disc evolution. The processes that affect the evolution of gas discs are then discussed, with the focus in particular on viscous accretion and photoevaporation, and recent models which combine the two. I then discuss the dynamics and growth of dust grains in discs, considering models of grain growth, the gas-grain interaction and planetesimal formation, and review recent research in this area. Lastly, I consider the so-called transitional discs, which are thought to be observed during disc dispersal. Recent observations and models of these systems are reviewed, and prospects for using statistical surveys to distinguish between the various proposed models are discussed. (C) 2008 Elsevier B.V. All rights reserved.
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