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- W3101681894 abstract "Propagation of three dimensional magnetosonic waves is considered for a homogeneous shear flow of an incompressible fluid. The analytical solutions for all magnetohydrodynamic variables are presented by confluent Heun functions. The problem is reduced to finding a solution of an effective Schrödinger equation. The amplification of slow magnetosonic waves is analyzed in great details. A simple formula for the amplification coefficient is derived. The velocity shear primarily affects the incompressible limit of slow magnetosonic waves. The amplification is very strong for slow magnetosonic waves in the long‐wavelength limit. It is demonstrated that the amplification of those waves leads to amplification of turbulence. The phenomenology of Shakura—Sunyaev for the friction in accretion disks is derived in the framework of the Kolmogorov turbulence. The presented findings may be the key to explaining the anomalous plasma heating responsible for the luminosity of quasars. It is suggested that wave amplification is the keystone of the self‐sustained turbulence in accretion disks." @default.
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- W3101681894 date "2009-01-01" @default.
- W3101681894 modified "2023-09-26" @default.
- W3101681894 title "Amplification of Slow Magnetosonic Waves by Shear Flow: Heating and Friction Mechanisms of Accretion Disks" @default.
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- W3101681894 doi "https://doi.org/10.1063/1.3137941" @default.
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