Physics of Accretion by Spiral Shock Waves
The properties of disks accreting by global spiral shocks are reviewed. The discussion includes the formation of these waves, the way they transport angular momentum, a selfsimilar model for spiral shocked accretion and recent numerical simulations. These simulations suggest that at least in disks produced by mass overflow in close binaries the efficiency of accretion (in terms of an effective α-value) can be substantial.
KeywordsAngular Momentum Accretion Disk Selfsimilar Solution Spiral Wave Spiral Pattern
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